diff --git a/old/done/back-end/.gitignore b/resources/solution/back-end/.gitignore
similarity index 100%
rename from old/done/back-end/.gitignore
rename to resources/solution/back-end/.gitignore
diff --git a/old/done/back-end/config.js b/resources/solution/back-end/config.js
similarity index 100%
rename from old/done/back-end/config.js
rename to resources/solution/back-end/config.js
diff --git a/old/done/back-end/package-lock.json b/resources/solution/back-end/package-lock.json
similarity index 100%
rename from old/done/back-end/package-lock.json
rename to resources/solution/back-end/package-lock.json
diff --git a/old/done/back-end/package.json b/resources/solution/back-end/package.json
similarity index 100%
rename from old/done/back-end/package.json
rename to resources/solution/back-end/package.json
diff --git a/old/done/back-end/server.js b/resources/solution/back-end/server.js
similarity index 100%
rename from old/done/back-end/server.js
rename to resources/solution/back-end/server.js
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/Main.java b/resources/solution/day-1/src/io/takima/agencymanagement/Main.java
deleted file mode 100644
index cfdacf88418be5c2404e2ffae74ba5291d8ec6dc..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/Main.java
+++ /dev/null
@@ -1,166 +0,0 @@
-package io.takima.agencymanagement;
-
-import io.takima.agencymanagement.model.Airport;
-import io.takima.agencymanagement.model.Discount;
-import io.takima.agencymanagement.model.RestaurentOffer;
-import io.takima.agencymanagement.model.PercentDiscount;
-import io.takima.agencymanagement.model.Travel;
-import io.takima.agencymanagement.model.User;
-import io.takima.agencymanagement.service.TravelService;
-import io.takima.agencymanagement.utils.AirportManager;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.time.LocalDateTime;
-import java.time.ZoneId;
-import java.time.format.DateTimeFormatter;
-import java.util.ArrayDeque;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Queue;
-import java.util.Set;
-
-public class Main {
-
-    public static void main(String[] args) {
-
-        TravelService travelService = new TravelService();
-        //Update Main
-        System.out.printf("Agency App \n");
-
-        User user1 = new User(0, "John", "Doe", "john.doe@gmail.com");
-        User user2 = new User(1, "John", "Doe", "john.doe@gmail.com");
-        User user3 = new User(2, "John", "Doe", "john.doe@gmail.com");
-        User user4 = new User(3, "John", "Doe", "john.doe@gmail.com");
-        User user5 = new User(4, "John", "Doe", "john.doe@gmail.com");
-        User user6 = new User(5, "Mat", "Doe", "mat.doe@gmail.com");
-
-        //Add 50% discount
-        List<Discount> discounts = new ArrayList<>();
-        discounts.add(new PercentDiscount(50));
-
-        //Add participant set
-        Set<User> users = Set.of(user1, user2, user3, user4, user5);
-        Set<User> participants = new HashSet<>(users);
-
-        // Bug without overriding equals and hashCode
-        User sameUser1 = new User(0, "Same", "User", "sameuser@gmail.com");
-        User sameUser2 = new User(0, "Same", "User", "sameuser@gmail.com");
-
-        Set<User> sameUsers = new HashSet<>();
-        try {
-            sameUsers = Set.of(sameUser1, sameUser2);
-        } catch (IllegalArgumentException e) {
-            System.out.println(e.getMessage());
-        }
-        Travel travelWithBug = new Travel(0L, null, Instant.now(), Instant.now().plusSeconds(1),
-                null, null, null, 0, 0, null,
-                sameUsers, null);
-
-        System.out.println(travelWithBug.getParticipants());
-
-        //Add waitList
-        Queue<User> waitList = new ArrayDeque<>();
-        waitList.add(user6);
-
-        // Log RestaurentOffer details
-        RestaurentOffer offer = new RestaurentOffer(
-                0L,
-                4,
-                "description",
-                2,
-                Instant.now().plusSeconds(10),
-                2,
-                Instant.now()
-        );
-        System.out.println(offer.getDetails());
-
-        //Create firstTravel
-        Travel firstTravel = new Travel(0L, "to Japan", Instant.now(), Instant.now().plusSeconds(86400), Airport.PARIS_CHARLES_DE_GAULLE, Airport.TOKYO_HANEDA, "Tokyo", 5, 2000, discounts, participants, waitList);
-
-        //Apply discount
-        applyDiscounts(firstTravel);
-
-        //Log user information
-        System.out.println(user1);
-        //Log travel information
-        System.out.println(firstTravel);
-
-        //Subscribe user using TravelService and get an exception
-        try {
-            travelService.subscribe(user1, firstTravel);
-        } catch (Exception e) {
-            System.out.println(e.getMessage());
-        }
-
-        System.out.println("Utilisateurs en file d'attente : " + firstTravel.getWaitList().element());
-
-        //Unsubscribe a participant then check the first one in the waitList is subscribed
-        travelService.unsubscribe(user1, firstTravel);
-
-        for (User participant : firstTravel.getParticipants()) {
-            System.out.println(participant);
-        }
-
-        //Log CDG airport timeZone
-        System.out.println(AirportManager.getTimeZone(Airport.PARIS_CHARLES_DE_GAULLE));
-
-        //Use computeTravelDuration
-        String dateStr = "26/04/2023, 12:10";
-        String dateStr2 = "27/04/2023, 06:36";
-
-        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy, HH:mm");
-        LocalDateTime localDateTime1 = LocalDateTime.parse(dateStr, formatter);
-        LocalDateTime localDateTime2 = LocalDateTime.parse(dateStr2, formatter);
-
-
-        Instant instant1 = localDateTime1.atZone(ZoneId.of(AirportManager.getTimeZone(Airport.PARIS_CHARLES_DE_GAULLE))).toInstant();
-        Instant instant2 = localDateTime2.atZone(ZoneId.of(AirportManager.getTimeZone(Airport.TOKYO_HANEDA))).toInstant();
-
-        firstTravel.setDepartureDate(instant1);
-        firstTravel.setArrivalDate(instant2);
-
-        System.out.println(travelService.computeTravelDuration(firstTravel));
-
-        //Use adjustDates
-        travelService.adjustDates(Duration.ofHours(5), firstTravel);
-        //Log it in the appropriate zoneTime
-        System.out.println(firstTravel.getDepartureDate().atZone(ZoneId.of(AirportManager.getTimeZone(firstTravel.getDepartureAirport()))));
-
-        //Find available ones
-        List<Travel> availableTravels = travelService.findAvailableForDestination("Paris");
-
-    }
-
-    //Before services
-    public static void applyDiscounts(Travel travel) {
-        if (travel.getDiscounts().isEmpty()) {
-            System.out.println("Aucune réduction n'est applicable sur ce voyage !");
-        } else {
-            for (Discount discount : travel.getDiscounts()) {
-                double discountedPrice = discount.apply(travel.getPrice());
-                System.out.println("Prix après réduction : " + discountedPrice);
-            }
-        }
-    }
-
-    public static boolean subscribe(User user, Travel travel) {
-
-        if (travel.getParticipants().size() < travel.getCapacity()) {
-            travel.getParticipants().add(user);
-            return true;
-        }
-        travel.getWaitList().add(user);
-        return false;
-    }
-
-    public void unsubscribe(User user, Travel travel) {
-
-        travel.getParticipants().remove(user);
-
-        if (!travel.getWaitList().isEmpty()) {
-            travel.getParticipants().add(travel.getWaitList().poll());
-        }
-    }
-}
\ No newline at end of file
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/dao/TravelDao.java b/resources/solution/day-1/src/io/takima/agencymanagement/dao/TravelDao.java
deleted file mode 100644
index 5937d37b3d75e12d635e8bbe3adc5e4b2b425d36..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/dao/TravelDao.java
+++ /dev/null
@@ -1,59 +0,0 @@
-package io.takima.agencymanagement.dao;
-
-import io.takima.agencymanagement.model.Airport;
-import io.takima.agencymanagement.model.Discount;
-import io.takima.agencymanagement.model.Travel;
-import io.takima.agencymanagement.model.User;
-
-import java.time.Instant;
-import java.util.*;
-
-public class TravelDao {
-
-    private final Map<Long, Travel> travels = Collections.synchronizedMap(new HashMap<>());
-
-    public TravelDao() {
-        addTravelsToMap();
-    }
-
-    public Travel persist(Travel travel) {
-        travels.put(travel.getId(), travel);
-        return travel;
-    }
-
-    public Travel update(Travel travel) {
-        if (travels.containsKey(travel.getId())) {
-            travels.put(travel.getId(), travel);
-            return travel;
-        }
-        return null;
-    }
-
-    public void delete(Long travelId) {
-        travels.remove(travelId);
-    }
-
-    public Travel findById(Long travelId) {
-        return travels.get(travelId);
-    }
-
-    public List<Travel> findAll() {
-        return new ArrayList<>(travels.values());
-    }
-
-    public void addTravelsToMap() {
-        List<Discount> emptyDiscountsList = new ArrayList<>();
-        Queue<User> emptyWaitList = new LinkedList<>();
-        Set<User> emptyParticipantsList = new HashSet<>();
-        Set<User> participantsList = new HashSet<>();
-        participantsList.add(new User(10, "Jean", "Michel", "j.m@gamil.com"));
-
-        Travel travel1 = new Travel(1, "Trip to Paris", Instant.now(), Instant.now().plusSeconds(3600), Airport.NEW_YORK_NEWARK, Airport.PARIS_ORLY, "Paris",50, 500.0, emptyDiscountsList, emptyParticipantsList, emptyWaitList);
-        Travel travel2 = new Travel(2, "Holiday in Tokyo", Instant.now(), Instant.now().plusSeconds(7200), Airport.PARIS_CHARLES_DE_GAULLE, Airport.TOKYO_HANEDA,"Tokyo", 40, 800.0, emptyDiscountsList, emptyParticipantsList, emptyWaitList);
-        Travel travel3 = new Travel(3, "Exploring Rome", Instant.now(), Instant.now().plusSeconds(10800), Airport.TOKYO_NARITA, Airport.NEW_YORK_JFK, "New York", 30, 600.0, emptyDiscountsList, participantsList, emptyWaitList);
-
-        travels.put(travel1.getId(), travel1);
-        travels.put(travel2.getId(), travel2);
-        travels.put(travel3.getId(), travel3);
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/dao/UserDao.java b/resources/solution/day-1/src/io/takima/agencymanagement/dao/UserDao.java
deleted file mode 100644
index 689edb65a789d6e8bb2b6cde15b36d51d27951cb..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/dao/UserDao.java
+++ /dev/null
@@ -1,54 +0,0 @@
-package io.takima.agencymanagement.dao;
-
-import io.takima.agencymanagement.model.User;
-
-import java.util.*;
-
-public class UserDao {
-
-    public UserDao() {
-        //add data
-        addUsersToMap();
-    }
-
-    private final Map<Long, User> users = Collections.synchronizedMap(new HashMap<>());
-
-    public User persist(User user) {
-        users.put(user.getId(), user);
-        return user;
-    }
-
-    public User update(User user) {
-        if (users.containsKey(user.getId())) {
-            users.put(user.getId(), user);
-            return user;
-        }
-        return null;
-    }
-
-    public void delete(Long userId) {
-        users.remove(userId);
-    }
-
-    public User findById(Long userId) {
-        return users.get(userId);
-    }
-
-    public List<User> findAll() {
-        return new ArrayList<>(users.values());
-    }
-
-    public void addUsersToMap() {
-        User user1 = new User(1, "John", "Doe", "john@example.com");
-        User user2 = new User(2, "Jane", "Smith", "jane@example.com");
-        User user3 = new User(3, "Alice", "Johnson", "alice@example.com");
-        User user4 = new User(4, "Bob", "Williams", "bob@example.com");
-        User user5 = new User(5, "Eva", "Brown", "eva@example.com");
-
-        users.put(user1.getId(), user1);
-        users.put(user2.getId(), user2);
-        users.put(user3.getId(), user3);
-        users.put(user4.getId(), user4);
-        users.put(user5.getId(), user5);
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/mapper/TravelDtoMapper.java b/resources/solution/day-1/src/io/takima/agencymanagement/mapper/TravelDtoMapper.java
deleted file mode 100644
index 4ea0ed96b0e420860885dda78df81801a101023f..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/mapper/TravelDtoMapper.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package io.takima.agencymanagement.mapper;
-
-import io.takima.agencymanagement.model.Travel;
-import io.takima.agencymanagement.presentation.responsedto.TravelResponseDto;
-import io.takima.agencymanagement.utils.AirportManager;
-
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-
-public class TravelDtoMapper {
-
-    public static TravelResponseDto fromTravel(Travel travel) {
-        ZonedDateTime zonedDepartureDate = travel.getDepartureDate()
-                .atZone(ZoneId.of(AirportManager.timeZone.get(travel.getDepartureAirport())));
-        ZonedDateTime zonedArrivalDate = travel.getDepartureDate()
-                .atZone(ZoneId.of(AirportManager.timeZone.get(travel.getArrivalAirport())));
-
-        return new TravelResponseDto(travel.getName(), travel.getDestination(), travel.getDepartureAirport(), travel.getArrivalAirport(), zonedDepartureDate, zonedArrivalDate, travel.getPrice());
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/mapper/UserDtoMapper.java b/resources/solution/day-1/src/io/takima/agencymanagement/mapper/UserDtoMapper.java
deleted file mode 100644
index d3351a9a6ca8a5b3aec35f1f44d80a9de6790e13..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/mapper/UserDtoMapper.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package io.takima.agencymanagement.mapper;
-
-import io.takima.agencymanagement.model.User;
-import io.takima.agencymanagement.presentation.responsedto.UserResponseDto;
-
-public class UserDtoMapper {
-
-    public static UserResponseDto fromUser(User user) {
-
-        return new UserResponseDto(user.getFirstName(), user.getLastName(), user.getContact());
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/Airport.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/Airport.java
deleted file mode 100644
index e2eabb8bf21b6055a42576ff5cc34ee550eecc1d..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/Airport.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package io.takima.agencymanagement.model;
-
-public enum Airport {
-
-    PARIS_CHARLES_DE_GAULLE("CDG"),
-    PARIS_ORLY("ORY"),
-    NEW_YORK_JFK("JFK"),
-    NEW_YORK_NEWARK("EWR"),
-    NEW_YORK_LAGUARDIA("LGA"),
-    TOKYO_NARITA("NRT"),
-    TOKYO_HANEDA("HND");
-
-    private final String acronym;
-
-    Airport(String acronym){
-        this.acronym = acronym;
-    }
-
-    public String getAcronym() {
-        return acronym;
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/Discount.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/Discount.java
deleted file mode 100644
index 4ab3d08a9724e1cae5161b407d8a12fd505a297f..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/Discount.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package io.takima.agencymanagement.model;
-
-public interface Discount {
-    public double apply(double price);
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/HotelOffer.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/HotelOffer.java
deleted file mode 100644
index cea6ddb24b75fa1ee8daf748cec537577af747e3..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/HotelOffer.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package io.takima.agencymanagement.model;
-
-import java.time.Instant;
-
-public class HotelOffer extends Offer {
-    private boolean isBreakfastIncluded;
-    private int nbOfAvailableDays;
-
-    public HotelOffer(
-            long id,
-            double score,
-            String description,
-            int nbOfReviews,
-            boolean isBreakfastIncluded,
-            int nbOfAvailableDays
-    ) {
-        super(id, score, description, nbOfReviews);
-        this.isBreakfastIncluded = isBreakfastIncluded;
-        this.nbOfAvailableDays = nbOfAvailableDays;
-    }
-
-    @Override
-    public boolean isValid() {
-        return super.isValid() &&
-                nbOfAvailableDays > 0;
-    }
-
-    public String getDetails() {
-        return "Le nombre de jours valaibles " +
-                nbOfAvailableDays +
-                ". Petit déjeuner est " +
-                (isBreakfastIncluded ? "" : "non") +
-                "inclu";
-    }
-
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/Offer.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/Offer.java
deleted file mode 100644
index 3b30b57b43b8971f0488772aeb6a60273d6f6e1f..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/Offer.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package io.takima.agencymanagement.model;
-
-import java.time.Instant;
-
-public abstract class Offer {
-    protected long id;
-    protected double score;
-    protected String description;
-    protected int nbOfReviews;
-    protected abstract String getDetails();
-
-    protected Offer(long id, double score, String description, int nbOfReviews) {
-        this.id = id;
-        this.score = score;
-        this.description = description;
-        this.nbOfReviews = nbOfReviews;
-    }
-
-    protected boolean isValid() {
-        return score >= 0 &&
-                score <= 5 &&
-                description != null &&
-                !description.isBlank() &&
-                nbOfReviews >= 0;
-    }
-
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/PercentDiscount.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/PercentDiscount.java
deleted file mode 100644
index 04876ada65f7343d7d6dc777561ffd256984c963..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/PercentDiscount.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package io.takima.agencymanagement.model;
-
-public class PercentDiscount implements Discount{
-
-    private double percent;
-
-    public PercentDiscount(int percent) {
-        this.percent = percent;
-    }
-
-    @Override
-    public double apply(double price) {
-        return price * (1 - (percent / 100));
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/RestaurentOffer.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/RestaurentOffer.java
deleted file mode 100644
index f203bae445dd1399635dcf8ec73686ea787a5d37..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/RestaurentOffer.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package io.takima.agencymanagement.model;
-
-import java.time.Instant;
-
-public class RestaurentOffer extends Offer {
-    private int nbOfStars;
-    private int nbOfPerson;
-
-    public RestaurentOffer(
-            long id,
-            double score,
-            String description,
-            int nbOfReviews,
-            Instant expiration,
-            int nbOfStars,
-            int nbOfPerson
-    ) {
-        super(id, score, description, nbOfReviews);
-        this.nbOfStars = nbOfStars;
-        this.nbOfPerson = nbOfPerson;
-    }
-
-    @Override
-    public boolean isValid() {
-        return super.isValid() &&
-                nbOfPerson > 0 &&
-                nbOfStars >0;
-    }
-
-    public String getDetails() {
-        return "La reservation est dans un restaurant de %d étoiles, pour %s personnes".formatted(nbOfStars, nbOfPerson);
-    }
-
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/Travel.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/Travel.java
deleted file mode 100644
index af92355f057308640bef70ed522017922a2db8e8..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/Travel.java
+++ /dev/null
@@ -1,158 +0,0 @@
-package io.takima.agencymanagement.model;
-
-import java.time.Instant;
-import java.util.List;
-import java.util.Queue;
-import java.util.Set;
-
-public class Travel {
-
-    private long id;
-    private String name;
-    private Instant departureDate;
-    private Instant arrivalDate;
-    private Airport departureAirport;
-    private Airport arrivalAirport;
-    private String destination;
-    private int capacity;
-    private  double price;
-    private List<Discount> discounts;
-
-    private Set<User> participants;
-
-    private Queue<User> waitList;
-
-    public Travel(long id, String name, Instant departureDate, Instant arrivalDate, Airport departureAirport, Airport arrivalAirport, String destination, int capacity, double price, List<Discount> discounts, Set<User> participants, Queue<User> waitList) {
-        if(departureDate.isAfter(arrivalDate)){
-            throw new IllegalArgumentException("Date de départ et après la date d'arrivée");
-        }
-
-        this.id = id;
-        this.name = name;
-        this.departureDate =departureDate;
-        this.arrivalDate = arrivalDate;
-        this.departureAirport = departureAirport;
-        this.arrivalAirport = arrivalAirport;
-        this.destination = destination;
-        this.capacity = capacity;
-        this.price = price;
-        this.discounts = discounts;
-        this.participants = participants;
-        this.waitList = waitList;
-    }
-
-    public long getId() {
-        return id;
-    }
-
-    public void setId(long id) {
-        this.id = id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public Instant getDepartureDate() {
-        return departureDate;
-    }
-
-    public void setDepartureDate(Instant departureDate) {
-        this.departureDate = departureDate;
-    }
-
-    public Instant getArrivalDate() {
-        return arrivalDate;
-    }
-
-    public void setArrivalDate(Instant arrivalDate) {
-        this.arrivalDate = arrivalDate;
-    }
-
-    public Airport getDepartureAirport() {
-        return departureAirport;
-    }
-
-    public void setDepartureAirport(Airport departureAirport) {
-        this.departureAirport = departureAirport;
-    }
-
-    public Airport getArrivalAirport() {
-        return arrivalAirport;
-    }
-
-    public void setArrivalAirport(Airport arrivalAirport) {
-        this.arrivalAirport = arrivalAirport;
-    }
-
-    public String getDestination() {
-        return destination;
-    }
-
-    public void setDestination(String destination) {
-        this.destination = destination;
-    }
-
-    public int getCapacity() {
-        return capacity;
-    }
-
-    public void setCapacity(int capacity) {
-        this.capacity = capacity;
-    }
-
-    public double getPrice() {
-        return price;
-    }
-
-    public void setPrice(double price) {
-        this.price = price;
-    }
-
-    public List<Discount> getDiscounts() {
-        return discounts;
-    }
-
-    public void setDiscounts(List<Discount> discounts) {
-        this.discounts = discounts;
-    }
-
-    public Set<User> getParticipants() {
-        return participants;
-    }
-
-    public void setParticipants(Set<User> participants) {
-        this.participants = participants;
-    }
-
-    public Queue<User> getWaitList() {
-        return waitList;
-    }
-
-    public void setWaitList(Queue<User> waitList) {
-        this.waitList = waitList;
-    }
-
-    @Override
-    public String toString() {
-
-        StringBuilder stringBuilder = new StringBuilder();
-        stringBuilder.append("Le voyage '")
-                .append(name)
-                .append("' à destination de ")
-                .append(destination)
-                .append(" a ")
-                .append(participants.size())
-                .append(" voyageurs inscrits qui sont respectivement:\n");
-
-        for (User participant : participants) {
-            stringBuilder.append("- ").append(participant.getFirstName()).append(participant.getLastName()).append("\n");
-        }
-
-        return stringBuilder.toString();
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/User.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/User.java
deleted file mode 100644
index b8393a81002ca1b1b7e98998be3a0836b65f269f..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/User.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package io.takima.agencymanagement.model;
-
-import java.util.Objects;
-
-public class User {
-
-    private long id;
-    private String firstName;
-    private String lastName;
-    private String contact;
-
-    public User(long id, String firstName, String lastName, String contact) {
-        this.id = id;
-        this.firstName = firstName;
-        this.lastName = lastName;
-        this.contact = contact;
-    }
-
-    public long getId() {
-        return id;
-    }
-
-    public void setId(long id) {
-        this.id = id;
-    }
-
-    public String getFirstName() {
-        return firstName;
-    }
-
-    public void setFirstName(String firstName) {
-        this.firstName = firstName;
-    }
-
-    public String getLastName() {
-        return lastName;
-    }
-
-    public void setLastName(String lastName) {
-        this.lastName = lastName;
-    }
-
-    public String getContact() {
-        return contact;
-    }
-
-    public void setContact(String contact) {
-        this.contact = contact;
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        User user = (User) o;
-        return id == user.id;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(id);
-    }
-
-    @Override
-    public String toString() {
-        return "Utilisateur " +
-                firstName + " " +
-                lastName + " " +
-                ", contact '" + contact + "\n"
-                ;
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/model/ValueDiscount.java b/resources/solution/day-1/src/io/takima/agencymanagement/model/ValueDiscount.java
deleted file mode 100644
index 61ea2fc067cbc3d6c70bba73c62c50d318b14e25..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/model/ValueDiscount.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package io.takima.agencymanagement.model;
-
-public class ValueDiscount implements Discount{
-
-    private double value;
-
-    public ValueDiscount(double value) {
-        this.value = value;
-    }
-
-    @Override
-    public double apply(double price) {
-        return price - value;
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/TravelResponseDto.java b/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/TravelResponseDto.java
deleted file mode 100644
index 38a2048c1bb1b5b6c4d46dade6efedb6667ef64a..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/TravelResponseDto.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package io.takima.agencymanagement.presentation.responsedto;
-
-import io.takima.agencymanagement.model.Airport;
-
-import java.time.ZonedDateTime;
-
-public record TravelResponseDto(
-        String name,
-        String destination,
-        Airport departureAirport,
-        Airport destinationAirport,
-        ZonedDateTime departureDate,
-        ZonedDateTime endDate,
-        double price) {
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/UserResponseDto.java b/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/UserResponseDto.java
deleted file mode 100644
index 5a41162ba8455950695b32fd2e4983f143c2c75d..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/presentation/responsedto/UserResponseDto.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package io.takima.agencymanagement.presentation.responsedto;
-
-public record UserResponseDto(
-        String firstName,
-        String lastName,
-        String contact) {
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/service/TravelService.java b/resources/solution/day-1/src/io/takima/agencymanagement/service/TravelService.java
deleted file mode 100644
index 37969c2c3a44d86e048ce96449bdf070b49a26cd..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/service/TravelService.java
+++ /dev/null
@@ -1,158 +0,0 @@
-package io.takima.agencymanagement.service;
-
-import io.takima.agencymanagement.dao.TravelDao;
-import io.takima.agencymanagement.mapper.TravelDtoMapper;
-import io.takima.agencymanagement.model.Travel;
-import io.takima.agencymanagement.model.User;
-import io.takima.agencymanagement.presentation.responsedto.TravelResponseDto;
-import io.takima.agencymanagement.model.Discount;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.util.Comparator;
-import java.util.List;
-import java.util.NoSuchElementException;
-
-import static io.takima.agencymanagement.mapper.TravelDtoMapper.fromTravel;
-
-public class TravelService {
-
-    private TravelDao travelDao;
-
-    public TravelService() {
-        travelDao = new TravelDao();
-    }
-
-    public TravelResponseDto create(Travel travel) {
-        travelDao.persist(travel);
-        return fromTravel(travel);
-    }
-
-    public TravelResponseDto update(Travel travel) {
-        travelDao.persist(travel);
-        return fromTravel(travel);
-    }
-
-    public TravelResponseDto delete(Travel travel) {
-        travelDao.persist(travel);
-        return fromTravel(travel);
-    }
-
-    public TravelResponseDto findById(Long id) {
-        Travel travel = travelDao.findById(id);
-        return fromTravel(travel);
-    }
-
-    public List<TravelResponseDto> findAll() {
-        return travelDao.findAll().stream()
-                .map(TravelDtoMapper::fromTravel)
-                .toList();
-
-    }
-    public void applyDiscounts(Travel travel) {
-        if (travel.getDiscounts().isEmpty()) {
-            System.out.println("Aucune réduction n'est applicable sur ce voyage !");
-        } else {
-            double discountedPrice = travel.getPrice();
-            for (Discount discount : travel.getDiscounts()) {
-                discountedPrice = discount.apply(discountedPrice);
-            }
-            System.out.println("Prix après les réductions : " + discountedPrice);
-        }
-    }
-
-    public boolean subscribe(User user, Travel travel) throws Exception {
-
-        if (travel.getParticipants().contains(user) || travel.getWaitList().contains(user)) {
-            //User already subscribed or in waitList
-            throw new Exception("L'utilisateur est déjà inscrit ou en file d'attente pour ce voyage.");
-        }
-
-        if (travel.getParticipants().size() < travel.getCapacity()) {
-            travel.getParticipants().add(user);
-            return true;
-        }
-        travel.getWaitList().add(user);
-        return false;
-    }
-
-    public void unsubscribe(User user, Travel travel) {
-
-        travel.getParticipants().remove(user);
-
-        if (!travel.getWaitList().isEmpty()) {
-            travel.getParticipants().add(travel.getWaitList().poll());
-        }
-    }
-
-    public Duration computeTravelDuration(Travel travel) {
-        return Duration.between(travel.getDepartureDate(), travel.getArrivalDate());
-    }
-
-    public void adjustDates(Duration delay, Travel travel) {
-        travel.setDepartureDate(travel.getDepartureDate().plus(delay));
-        travel.setArrivalDate(travel.getArrivalDate().plus(delay));
-    }
-
-    public Travel findClosestToCurrentDate(List<Travel> travels) {
-        Instant now = Instant.now();
-
-        return travels.stream()
-                .min(Comparator.comparing(travel -> Duration.between(now, travel.getDepartureDate()).abs()))
-                .orElseThrow(NoSuchElementException::new);
-    }
-
-    public List<Travel> findAvailableForDestination(String destination) {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .filter(travel -> travel.getCapacity() > travel.getParticipants().size() && travel.getDestination().equals(destination))
-                .toList();
-    }
-
-    public List<Travel> findInPriceRange(double minPrice, double maxPrice) {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .filter(travel -> travel.getPrice() >= minPrice && travel.getPrice() <= maxPrice)
-                .toList();
-    }
-
-    public List<Travel> findNSortedByPriceAsc(int n) {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .sorted(Comparator.comparing(Travel::getPrice))
-                .limit(n)
-                .toList();
-    }
-
-    public List<Travel> findWithPromotions() {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .filter(travel -> !travel.getDiscounts().isEmpty())
-                .toList();
-    }
-
-    public List<Travel> findByUser(String firstName, String lastName) {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .filter(travel ->
-                        travel.getParticipants().stream()
-                                .anyMatch(user ->
-                                        user.getFirstName().equals(firstName) &&
-                                                user.getLastName().equals(lastName)))
-                .toList();
-    }
-
-    public double getAveragePrice() {
-        List<Travel> travels = travelDao.findAll();
-
-        return travels.stream()
-                .mapToDouble(Travel::getPrice)
-                .average()
-                .orElse(0.0);
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/service/UserService.java b/resources/solution/day-1/src/io/takima/agencymanagement/service/UserService.java
deleted file mode 100644
index 08903f6c0eee79fc1fc9b8c05b6e17e14caa7d4e..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/service/UserService.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package io.takima.agencymanagement.service;
-
-import io.takima.agencymanagement.dao.UserDao;
-import io.takima.agencymanagement.mapper.UserDtoMapper;
-import io.takima.agencymanagement.model.User;
-import io.takima.agencymanagement.presentation.responsedto.UserResponseDto;
-
-import java.util.List;
-
-import static io.takima.agencymanagement.mapper.UserDtoMapper.fromUser;
-
-public class UserService {
-
-    UserDao userDao = new UserDao();
-
-    public UserResponseDto create(User user) {
-        userDao.persist(user);
-        return fromUser(user);
-    }
-
-    public UserResponseDto update(User  user) {
-        userDao.persist(user);
-        return fromUser(user);
-    }
-
-    public UserResponseDto delete(User  user) {
-        userDao.persist(user);
-        return fromUser(user);
-    }
-
-    public UserResponseDto findById(Long id) {
-        User  user = userDao.findById(id);
-        return fromUser(user);
-    }
-
-    public List<UserResponseDto> findAll() {
-        return userDao.findAll().stream()
-                .map(UserDtoMapper::fromUser)
-                .toList();
-
-    }
-}
diff --git a/resources/solution/day-1/src/io/takima/agencymanagement/utils/AirportManager.java b/resources/solution/day-1/src/io/takima/agencymanagement/utils/AirportManager.java
deleted file mode 100644
index d48a17b7a424a42a613db4a3d1e8358cc03f31c5..0000000000000000000000000000000000000000
--- a/resources/solution/day-1/src/io/takima/agencymanagement/utils/AirportManager.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package io.takima.agencymanagement.utils;
-
-import io.takima.agencymanagement.model.Airport;
-
-import java.util.HashMap;
-import java.util.Map;
-
-public class AirportManager {
-
-    private static final Map<Airport, String> timeZone = new HashMap<>();
-
-    static {
-        timeZone.put(Airport.PARIS_CHARLES_DE_GAULLE, "Europe/Paris");
-        timeZone.put(Airport.PARIS_ORLY, "Europe/Paris");
-        timeZone.put(Airport.NEW_YORK_JFK, "America/New_York");
-        timeZone.put(Airport.NEW_YORK_NEWARK, "America/New_York");
-        timeZone.put(Airport.NEW_YORK_LAGUARDIA, "America/New_York");
-        timeZone.put(Airport.TOKYO_NARITA, "Asia/Tokyo");
-        timeZone.put(Airport.TOKYO_HANEDA, "Asia/Tokyo");
-    }
-}
diff --git a/resources/solution/day-2/.gitkeep b/resources/solution/day-2/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/resources/solution/day-2/day2.zip b/resources/solution/day-2/day2.zip
deleted file mode 100644
index a7f5535d8e48728a50bdf7d56035e61f38d2449c..0000000000000000000000000000000000000000
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