diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 5f320dc..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-main.exe
-singleFile.exe
\ No newline at end of file
diff --git a/conf.c b/conf.c
index 5d023ac..9278f44 100644
--- a/conf.c
+++ b/conf.c
@@ -91,6 +91,7 @@ ptListener newListenerChain() {
     listenerChain -> prev = NULL;
     listenerChain -> next = (ptListener) malloc(sizeof(tListener));
     listenerChain -> next -> prev = listenerChain;
+    listenerChain -> next -> next = NULL;
     listenerChain -> id = -1;
 
     return listenerChain;
@@ -159,20 +160,15 @@ void addConfToConfList(ptConfList confList, ptConf conf, int grade) {
 void removeConfFromConfList(ptConfList confList, ptConf conf) {
     ptConfList px = confList;
 
-    while (px -> next != NULL && px -> conf != conf) {
+    while (px -> next != NULL && px -> next -> conf != conf) {
         px = px -> next;
     }
 
-    printConfList(confList -> next);
-    printf("%d\n", px -> conf -> id);
-
     if (px -> next != NULL && px -> next -> conf == conf) {
         ptConfList tmp = px -> next -> next;
         free(px -> next);
         px -> next = tmp;
     }
-
-    system("pause");
 }
 
 void printConfList(ptConfList confList) {
@@ -202,7 +198,7 @@ void addListenerToListenerList(ptListenerList listenerList, ptListener listener,
 void removeListenerFromListenerList(ptListenerList listenerList, ptListener listener) {
     ptListenerList px = listenerList;
 
-    while (px -> next != NULL && px -> listener != listener) {
+    while (px -> next != NULL && px -> next -> listener != listener) {
         px = px -> next;
     }
 
diff --git a/data/confs b/data/confs
index fbe43fa..fa10f60 100644
--- a/data/confs
+++ b/data/confs
@@ -1,3 +1,4 @@
+1,Rapport_du_GIEC,Jean_Jouzzel,15,11,2022
 2,L_esprit_critique,Thomas_Durand,6,2,2023
 3,La_resilience,Arthur_Keller,20,10,2022
 4,American_lobbying,Salah_Oueslati,30,11,2023
diff --git a/dataBackup/relations b/dataBackup/relations
index a8edff2..423a92f 100644
--- a/dataBackup/relations
+++ b/dataBackup/relations
@@ -1,2 +1,5 @@
 1:12;0,1;4
+2:12;0,1;4
+3:12;0,1;4
+4:12;0,1;4
 9:20;5
diff --git a/fileManager.c b/fileManager.c
index e6d6088..6c81bec 100644
--- a/fileManager.c
+++ b/fileManager.c
@@ -94,8 +94,10 @@ void saveRelations(ptConf confChain) {
     FILE *file = fopen("./data/relations", "w");
     ptConf px = confChain;
     ptListenerList py;
+    printf("test");
     while(px -> next != NULL){
-        py = px -> listeners;
+        printf("test");
+        py = px -> listeners -> next;
 
         if (py -> next != NULL) {
             fprintf(file, "%d:", px -> id);
diff --git a/main.exe b/main.exe
new file mode 100644
index 0000000..b3053ca
Binary files /dev/null and b/main.exe differ
diff --git a/screenManager.c b/screenManager.c
index 56ca07b..662e9fb 100644
--- a/screenManager.c
+++ b/screenManager.c
@@ -105,6 +105,8 @@ void menuConf(ptConf confChain, ptListener listenerChain) {
 	system("cls");
 	drawMenu(options, 5);
 	goToCoords(0, 13);
+	tasse();
+	printf("\n");
 	printf("Que voulez-vous faire ? : ");
 	int choice;
 	scanf("%d", &choice);
@@ -160,6 +162,15 @@ void menuConf(ptConf confChain, ptListener listenerChain) {
 
 	case 3:
 	{
+		ptConf px = confChain -> next;
+
+		printf("\n");
+		while (px -> next != NULL) {
+			printf("%d : %s\n", px -> id, px -> title);
+			px = px -> next;
+		}
+		printf("\n");
+
 		int id;
 
 		printf("Id de la conference a supprimer : ");
@@ -167,6 +178,7 @@ void menuConf(ptConf confChain, ptListener listenerChain) {
 
 		removeConf(confChain, id);
 		saveConf(confChain -> next);
+		saveRelations(confChain -> next);
 		menuConf(confChain, listenerChain);
 		break;
 	}
@@ -216,6 +228,8 @@ void menuAbo(ptConf confChain, ptListener listenerChain) {
 	system("cls");
 	drawMenu(options, 4);
 	goToCoords(0, 12);
+	tasse();
+	printf("\n");
 	printf("Que voulez-vous faire ? : ");
 	int choice;
 	scanf("%d", &choice);
@@ -264,6 +278,15 @@ void menuAbo(ptConf confChain, ptListener listenerChain) {
 
 	case 3:
 	{
+		ptListener px = listenerChain -> next;
+
+		printf("\n");
+		while (px -> next != NULL) {
+			printf("%d : %s\n", px -> id, px -> name);
+			px = px -> next;
+		}
+		printf("\n");
+
 		int id;
 
 		printf("Id de l'abonne a supprimer : ");
@@ -271,6 +294,7 @@ void menuAbo(ptConf confChain, ptListener listenerChain) {
 
 		removeListener(listenerChain, id);
 		saveListeners(listenerChain -> next);
+		saveRelations(confChain -> next);
 		menuAbo(confChain, listenerChain);
 		break;
 	}
@@ -308,6 +332,21 @@ void menu(ptConf confChain, ptListener listenerChain)
 
 	case 3:
 	{
+		ptConf px = confChain -> next;
+		ptListener py = listenerChain -> next;
+
+		printf("\n");
+		while (px -> next != NULL) {
+			printf("%d : %s\n", px -> id, px -> title);
+			px = px -> next;
+		}
+		printf("\n");
+		while (py -> next != NULL) {
+			printf("%d : %s\n", py -> id, py -> name);
+			py = py -> next;
+		}
+		printf("\n");
+
 		int confId, listenerId, grade;
 		printf("Entrez l'ID de la conference : ");
 		scanf("%d", &confId);
@@ -317,7 +356,7 @@ void menu(ptConf confChain, ptListener listenerChain)
 		scanf("%d", &grade);
 		
 		if (participateToConf(confChain, listenerChain, confId, listenerId, grade) != -1) {
-			saveRelations(confChain);
+			saveRelations(confChain -> next);
 		} else {
 			printf("La note doit etre comprise entre 0 et 5 et l'abonne ne doit pas avoir deja participe a la conference\n\n");
 			system("pause");
diff --git a/singleFile.c b/singleFile.c
index 6483b3e..494561a 100644
--- a/singleFile.c
+++ b/singleFile.c
@@ -60,8 +60,10 @@ ptListener newListenerChain();
 int addListener(ptListener listenerChain, int id, char name[], int age, int level);
 void removeListener(ptListener listenerChain, int id);
 void addConfToConfList(ptConfList confList, ptConf conf, int grade);
+void removeConfFromConfList(ptConfList confList, ptConf conf);
 void printConfList(ptConfList confList);
 void addListenerToListenerList(ptListenerList listenerList, ptListener listener, int grade);
+void removeListenerFromListenerList(ptListenerList listenerList, ptListener listener);
 void printListenerList(ptListenerList listenerList);
 int participateToConf(ptConf confChain, ptListener listenerChain, int confId, int listenerId, int grade);
 int confGradeAvg(ptConf conf);
@@ -89,7 +91,9 @@ ptConf newConfChain()
 {
     ptConf confChain = (ptConf)malloc(sizeof(tConf));
 
-    confChain->next = NULL;
+    confChain->next = (ptConf)malloc(sizeof(tConf));
+    confChain->next->next = NULL;
+    confChain->id = -1;
 
     return confChain;
 }
@@ -110,7 +114,9 @@ void addConf(ptConf confChain, int id, char title[], char speaker[], int day, in
     strcpy(px->title, title);
     strcpy(px->speaker, speaker);
     px->listeners = (ptListenerList)malloc(sizeof(tListenerList));
-    px->listeners->next = NULL;
+    px->listeners->next = (ptListenerList)malloc(sizeof(tListenerList));
+    px->listeners->listener = NULL;
+    px->listeners->next->next = NULL;
     px->next = (ptConf)malloc(sizeof(tConf));
     px->next->next = NULL;
 }
@@ -119,42 +125,24 @@ void removeConf(ptConf confChain, int id)
 {
     ptConf px = confChain;
 
-    if (px->next == NULL)
+    while (px->next != NULL && px->next->id != id)
     {
-        return;
+        px = px->next;
     }
-    else if (px->next->next == NULL)
-    {
 
+    if (px->next != NULL && px->next->id == id)
+    {
+        ptListenerList py = px->next->listeners->next;
+
+        while (py->next != NULL)
+        {
+            removeConfFromConfList(py->listener->confs, px->next);
+            py = py->next;
+        }
+
+        ptConf tmp = px->next->next;
         free(px->next);
-        px->next = NULL;
-    }
-    else if (px->id == id && px->next->next != NULL)
-    {
-        px->id = px->next->id;
-        strcpy(px->title, px->next->title);
-        strcpy(px->speaker, px->next->speaker);
-        px->day = px->next->day;
-        px->month = px->next->month;
-        px->year = px->next->year;
-
-        ptConf tmp = px->next;
-        px->next = px->next->next;
-        free(tmp);
-    }
-    else
-    {
-        while (px->next != NULL && px->next->id != id)
-        {
-            px = px->next;
-        }
-
-        if (px->next->id == id)
-        {
-            ptConf tmp = px->next;
-            px->next = px->next->next;
-            free(tmp);
-        }
+        px->next = tmp;
     }
 }
 
@@ -181,7 +169,10 @@ ptListener newListenerChain()
     ptListener listenerChain = (ptListener)malloc(sizeof(tListener));
 
     listenerChain->prev = NULL;
-    listenerChain->next = NULL;
+    listenerChain->next = (ptListener)malloc(sizeof(tListener));
+    listenerChain->next->prev = listenerChain;
+    listenerChain->next->next = NULL;
+    listenerChain->id = -1;
 
     return listenerChain;
 }
@@ -205,7 +196,9 @@ int addListener(ptListener listenerChain, int id, char name[], int age, int leve
     px->age = age;
     px->level = level;
     px->confs = (ptConfList)malloc(sizeof(tConfList));
-    px->confs->next = NULL;
+    px->confs->next = (ptConfList)malloc(sizeof(tConfList));
+    px->confs->conf = NULL;
+    px->confs->next->next = NULL;
     px->next = (ptListener)malloc(sizeof(tListener));
     px->next->next = NULL;
     px->next->prev = px;
@@ -215,41 +208,26 @@ int addListener(ptListener listenerChain, int id, char name[], int age, int leve
 void removeListener(ptListener listenerChain, int id)
 {
     ptListener px = listenerChain;
-    if (px->next == NULL)
+
+    while (px->next != NULL && px->next->id != id)
     {
-        return;
+        px = px->next;
     }
-    else if (px->id == id && px->next->next == NULL)
+
+    if (px->next != NULL && px->next->id == id)
     {
+        ptConfList py = px->next->confs->next;
+
+        while (py->next != NULL)
+        {
+            removeListenerFromListenerList(py->conf->listeners, px->next);
+            py = py->next;
+        }
+
+        ptListener tmp = px->next->next;
         free(px->next);
-        px->next = NULL;
-    }
-    else if (px->id == id)
-    {
-        px->id = px->next->id;
-        strcpy(px->name, px->next->name);
-        px->age = px->next->age;
-        px->level = px->next->level;
-
-        ptListener tmp = px->next;
-        px->next = px->next->next;
+        px->next = tmp;
         px->next->prev = px;
-        free(tmp);
-    }
-    else
-    {
-        while (px->next != NULL && px->next->id != id)
-        {
-            px = px->next;
-        }
-
-        if (px->next->id == id)
-        {
-            ptListener tmp = px->next;
-            px->next = px->next->next;
-            px->next->prev = px;
-            free(tmp);
-        }
     }
 }
 
@@ -268,44 +246,20 @@ void addConfToConfList(ptConfList confList, ptConf conf, int grade)
     px->next->next = NULL;
 }
 
-void removeConfFromConfList(ptConf confChain, ptConfList confList, ptConf conf)
+void removeConfFromConfList(ptConfList confList, ptConf conf)
 {
+    ptConfList px = confList;
 
-    if (confList->next == NULL)
+    while (px->next != NULL && px->next->conf != conf)
     {
-        return;
+        px = px->next;
     }
-    else if (confList->next->next == NULL && confList->conf == conf)
-    {
-        free(confList->next);
-        confList->next = NULL;
-    }
-    else if (confList->conf == conf && confList->next->next != NULL)
-    {
-        confList->conf = confList->next->conf;
-        confList->grade = confList->next->grade;
-        ptConfList tmp = confList->next->next;
-        free(confList->next);
-        confList->next = tmp;
-    }
-    else
-    {
-        ptConfList px = confList;
 
-        while (px->next != NULL && px->next->conf != conf)
-        {
-            if (confChain == conf && px->conf == conf->next) {
-                px->conf
-            }
-
-            px = px->next;
-        }
-
-        if (px->next->conf == conf) {
-            ptConfList tmp = px->next->next;
-            free(px->next);
-            px->next = tmp;
-        }
+    if (px->next != NULL && px->next->conf == conf)
+    {
+        ptConfList tmp = px->next->next;
+        free(px->next);
+        px->next = tmp;
     }
 }
 
@@ -313,7 +267,7 @@ void printConfList(ptConfList confList)
 {
     ptConfList px = confList;
 
-    printf(" Participation aux conferences : ");
+    printf("Participation aux conferences : ");
     while (px->next != NULL)
     {
         printf("%s(%d) ", px->conf->title, px->grade);
@@ -337,11 +291,28 @@ void addListenerToListenerList(ptListenerList listenerList, ptListener listener,
     px->next->next = NULL;
 }
 
+void removeListenerFromListenerList(ptListenerList listenerList, ptListener listener)
+{
+    ptListenerList px = listenerList;
+
+    while (px->next != NULL && px->next->listener != listener)
+    {
+        px = px->next;
+    }
+
+    if (px->next != NULL && px->next->listener == listener)
+    {
+        ptListenerList tmp = px->next->next;
+        free(px->next);
+        px->next = tmp;
+    }
+}
+
 void printListenerList(ptListenerList listenerList)
 {
     ptListenerList px = listenerList;
 
-    printf(" Participants : ");
+    printf("Participants : ");
     while (px->next != NULL)
     {
         printf("%s(%d) ", px->listener->name, px->grade);
@@ -366,7 +337,7 @@ int participateToConf(ptConf confChain, ptListener listenerChain, int confId, in
         px = px->next;
     }
 
-    pz = px->listeners;
+    pz = px->listeners->next;
     while (pz->next != NULL)
     {
         if (pz->listener->id == listenerId)
@@ -394,7 +365,7 @@ int participateToConf(ptConf confChain, ptListener listenerChain, int confId, in
 
 int confGradeAvg(ptConf conf)
 {
-    ptListenerList px = conf->listeners;
+    ptListenerList px = conf->listeners->next;
     int total = 0, nb = 0;
 
     while (px->next != NULL)
@@ -416,7 +387,7 @@ int confGradeAvg(ptConf conf)
 
 int confParticipations(ptConf conf)
 {
-    ptListenerList px = conf->listeners;
+    ptListenerList px = conf->listeners->next;
     int nb = 0;
 
     while (px->next != NULL)
@@ -545,9 +516,11 @@ void saveRelations(ptConf confChain)
     FILE *file = fopen("./data/relations", "w");
     ptConf px = confChain;
     ptListenerList py;
+    printf("test");
     while (px->next != NULL)
     {
-        py = px->listeners;
+        printf("test");
+        py = px->listeners->next;
 
         if (py->next != NULL)
         {
@@ -585,7 +558,6 @@ void drawMenu(char *options[], int lenght);
 void tasse();
 void menuConf(ptConf confChain, ptListener listenerChain);
 void menuAbo(ptConf confChain, ptListener listenerChain);
-
 void menu(ptConf confChain, ptListener listenerChain);
 
 void goToCoords(int x, int y)
@@ -694,6 +666,8 @@ void menuConf(ptConf confChain, ptListener listenerChain)
     system("cls");
     drawMenu(options, 5);
     goToCoords(0, 13);
+    tasse();
+    printf("\n");
     printf("Que voulez-vous faire ? : ");
     int choice;
     scanf("%d", &choice);
@@ -702,21 +676,21 @@ void menuConf(ptConf confChain, ptListener listenerChain)
     {
     case 1:
     {
-        ptConf px = confChain;
+        ptConf px = confChain->next;
 
         while (px->next != NULL)
         {
-            printf(" Id : %d\n Titre : %s\n Conferencier : %s\n", px->id, px->title, px->speaker);
-            printf(" Date : %d/%d/%d\n", px->day, px->month, px->year);
-            printf(" Nombre de participants : %d\n", confParticipations(px));
+            printf("Id : %d\nTitre : %s\nConferencier : %s\n", px->id, px->title, px->speaker);
+            printf("Date : %d/%d/%d\n", px->day, px->month, px->year);
+            printf("Nombre de participants : %d\n", confParticipations(px));
             if (px->listeners->next != NULL)
             {
-                printListenerList(px->listeners);
+                printListenerList(px->listeners->next);
             }
             int avg;
             if ((avg = confGradeAvg(px) != -1))
             {
-                printf(" Moyenne des notes : %d\n", confGradeAvg(px));
+                printf("Moyenne des notes : %d\n", confGradeAvg(px));
             }
             printf("\n");
             px = px->next;
@@ -733,32 +707,43 @@ void menuConf(ptConf confChain, ptListener listenerChain)
         char speaker[20];
 
         id = findConfId(confChain);
-        printf(" Titre de la conference : ");
+        printf("Titre de la conference : ");
         scanf("%29s", &title);
-        printf(" Nom du conferencier : ");
+        printf("Nom du conferencier : ");
         scanf("%19s", &speaker);
-        printf(" Jour : ");
+        printf("Jour : ");
         scanf("%d", &day);
-        printf(" Mois : ");
+        printf("Mois : ");
         scanf("%d", &month);
-        printf(" Annee : ");
+        printf("Annee : ");
         scanf("%d", &year);
 
         addConf(confChain, id, title, speaker, day, month, year);
-        saveConf(confChain);
+        saveConf(confChain->next);
         menuConf(confChain, listenerChain);
         break;
     }
 
     case 3:
     {
+        ptConf px = confChain->next;
+
+        printf("\n");
+        while (px->next != NULL)
+        {
+            printf("%d : %s\n", px->id, px->title);
+            px = px->next;
+        }
+        printf("\n");
+
         int id;
 
-        printf(" Id de la conference a supprimer : ");
+        printf("Id de la conference a supprimer : ");
         scanf("%d", &id);
 
         removeConf(confChain, id);
-        saveConf(confChain);
+        saveConf(confChain->next);
+        saveRelations(confChain->next);
         menuConf(confChain, listenerChain);
         break;
     }
@@ -766,11 +751,11 @@ void menuConf(ptConf confChain, ptListener listenerChain)
     case 4:
     {
         int day, month, year, time;
-        printf(" Jour : ");
+        printf("Jour : ");
         scanf("%d", &day);
-        printf(" Mois : ");
+        printf("Mois : ");
         scanf("%d", &month);
-        printf(" Annee : ");
+        printf("Annee : ");
         scanf("%d", &year);
 
         time = day + 31 * month + 365 * year;
@@ -795,7 +780,7 @@ void menuConf(ptConf confChain, ptListener listenerChain)
             }
         }
 
-        saveConf(confChain);
+        saveConf(confChain->next);
 
         menuConf(confChain, listenerChain);
     }
@@ -815,7 +800,9 @@ void menuAbo(ptConf confChain, ptListener listenerChain)
     system("cls");
     drawMenu(options, 4);
     goToCoords(0, 12);
-    printf(" Que voulez-vous faire ? : ");
+    tasse();
+    printf("\n");
+    printf("Que voulez-vous faire ? : ");
     int choice;
     scanf("%d", &choice);
 
@@ -823,14 +810,14 @@ void menuAbo(ptConf confChain, ptListener listenerChain)
     {
     case 1:
     {
-        ptListener py = listenerChain;
+        ptListener py = listenerChain->next;
 
         while (py->next != NULL)
         {
-            printf(" Id : %d\n Nom: %s\n Age: %d\n Niveau: %d\n", py->id, py->name, py->age, py->level);
+            printf("Id : %d\nNom: %s\nAge: %d\nNiveau: %d\n", py->id, py->name, py->age, py->level);
             if (py->confs->next != NULL)
             {
-                printConfList(py->confs);
+                printConfList(py->confs->next);
             }
             printf("\n");
             py = py->next;
@@ -846,20 +833,20 @@ void menuAbo(ptConf confChain, ptListener listenerChain)
         char name[20];
 
         id = findListenerId(listenerChain);
-        printf(" Nom : ");
+        printf("Nom : ");
         scanf("%19s", &name);
-        printf(" Age : ");
+        printf("Age : ");
         scanf("%d", &age);
-        printf(" Niveau : ");
+        printf("Niveau : ");
         scanf("%d", &level);
 
         if (addListener(listenerChain, id, name, age, level) != -1)
         {
-            saveListeners(listenerChain);
+            saveListeners(listenerChain->next);
         }
         else
         {
-            printf(" Le niveau de l'abonne doit etre compris entre 0 et 5.\n\n");
+            printf("Le niveau de l'abonne doit etre compris entre 0 et 5.\n\n");
             system("pause");
         }
         menuAbo(confChain, listenerChain);
@@ -868,13 +855,24 @@ void menuAbo(ptConf confChain, ptListener listenerChain)
 
     case 3:
     {
+        ptListener px = listenerChain->next;
+
+        printf("\n");
+        while (px->next != NULL)
+        {
+            printf("%d : %s\n", px->id, px->name);
+            px = px->next;
+        }
+        printf("\n");
+
         int id;
 
-        printf(" Id de l'abonne a supprimer : ");
+        printf("Id de l'abonne a supprimer : ");
         scanf("%d", &id);
 
         removeListener(listenerChain, id);
-        saveListeners(listenerChain);
+        saveListeners(listenerChain->next);
+        saveRelations(confChain->next);
         menuAbo(confChain, listenerChain);
         break;
     }
@@ -896,7 +894,7 @@ void menu(ptConf confChain, ptListener listenerChain)
     goToCoords(0, 13);
     tasse();
     printf("\n");
-    printf(" Que voulez-vous faire ? : ");
+    printf("Que voulez-vous faire ? : ");
     int choice;
     scanf("%d", &choice);
 
@@ -912,21 +910,38 @@ void menu(ptConf confChain, ptListener listenerChain)
 
     case 3:
     {
+        ptConf px = confChain->next;
+        ptListener py = listenerChain->next;
+
+        printf("\n");
+        while (px->next != NULL)
+        {
+            printf("%d : %s\n", px->id, px->title);
+            px = px->next;
+        }
+        printf("\n");
+        while (py->next != NULL)
+        {
+            printf("%d : %s\n", py->id, py->name);
+            py = py->next;
+        }
+        printf("\n");
+
         int confId, listenerId, grade;
-        printf(" Entrez l'ID de la conference : ");
+        printf("Entrez l'ID de la conference : ");
         scanf("%d", &confId);
-        printf(" Entrez l'ID du participant : ");
+        printf("Entrez l'ID du participant : ");
         scanf("%d", &listenerId);
-        printf(" Entrez la note attribuee par le participant : ");
+        printf("Entrez la note attribuee par le participant : ");
         scanf("%d", &grade);
 
         if (participateToConf(confChain, listenerChain, confId, listenerId, grade) != -1)
         {
-            saveRelations(confChain);
+            saveRelations(confChain->next);
         }
         else
         {
-            printf(" La note doit etre comprise entre 0 et 5 et l'abonne ne doit pas avoir deja participe a la conference\n\n");
+            printf("La note doit etre comprise entre 0 et 5 et l'abonne ne doit pas avoir deja participe a la conference\n\n");
             system("pause");
         }
 
@@ -952,7 +967,7 @@ void menu(ptConf confChain, ptListener listenerChain)
             px = px->next;
         }
 
-        printf(" La conférence la mieux notee est : %s\n\n", confMax->title);
+        printf("La conférence la mieux notee est : %s\n\n", confMax->title);
 
         system("pause");
         menu(confChain, listenerChain);