diff --git a/VANDAMME28.c b/VANDAMME28.c
new file mode 100644
index 0000000..7a1f5ab
--- /dev/null
+++ b/VANDAMME28.c
@@ -0,0 +1,653 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <conio.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <string.h>
+
+#define __TVA__ 1.21
+#define __REDUC__ 0.9
+#define __MAXNBRART__ 3
+
+#define __STRLEN__ 34
+#define __STRLEN_FILE__ 500
+
+typedef enum{FALSE,TRUE} Bool;
+typedef struct {
+  char deisgnation[__STRLEN__];
+  float prixHTVA;
+  int quant;
+} Article;
+typedef struct {
+  Article * article;
+  unsigned int nbrArt;
+} Panier;
+typedef struct{
+  int jour,moi,annee;
+} Date;
+typedef struct{
+  char rue[__STRLEN__],numero[__STRLEN__],localite[__STRLEN__];
+  int codePostal;
+} Adresse;
+typedef struct{
+  char telephone[13],email[__STRLEN__];
+} Contact;
+typedef struct{
+  char nom[__STRLEN__];
+  char prenom[__STRLEN__];
+  Adresse adresse;
+  Contact contact;
+  Date anniversaire;
+  int fidelite;
+  Panier panier;
+} Client;
+
+
+
+
+void encoderDate(Date *, char *);
+Bool dateValide (Date *);
+void encoderArticle(Article *);
+void encoderClient(Client *);
+void sauvegarderClient(Client *, FILE *, Date*);
+void afficherClient(Client *, Date *);
+void encoderFacture(Panier *);
+FILE * creerFichier(Date *, Client *);
+Bool fichierExistant(char *);
+void sauvergarderFacture(FILE *, Date *, Client *);
+void afficherFacture(Date *, Client *);
+void cleanFgets(char*);
+int itoaY(int i, char*);
+int itoaDM(int i, char*);
+Bool clean_keyboard();
+int ageClient(Client *, Date *);
+int pointsFidelite(float);
+void gestionFacture(Client *, Date *);
+Client * rechercheClient(char *, char *, FILE *, Date *);
+Bool gestionClient(Client *, Date *);
+FILE * localiserFichierClients(char *);
+int ajouterClientBin(FILE *, Client *);
+int compNP(char *, char *,char *, char *);
+void qSortClientBinByNP(FILE *);
+
+int main()
+{
+    FILE * clientF;
+    Date date;
+    char tmp;
+    Bool w;
+
+    time_t curTimeStamp = time(NULL);
+    struct tm *locTime = localtime(&curTimeStamp);
+    locTime->tm_mon += 1;
+    locTime->tm_year += 1900;
+
+    printf("Voulez-vous utilisez la date système %d/%d/%d (Y|n)?\n", locTime->tm_mday,locTime->tm_mon,locTime->tm_year);
+    scanf("%c", &tmp);
+    if((tmp|0b00100000) != 'y')
+      encoderDate(&date, "Date facturation");
+    else
+    {
+      date.jour = locTime->tm_mday;
+      date.moi = locTime->tm_mon;
+      date.annee = locTime->tm_year;
+    }
+
+    Client * client;
+    char nomClient[__STRLEN__];
+    char prenomClient[__STRLEN__];
+    char fichierClient[__STRLEN_FILE__];
+    int choixMenu;
+    clientF = localiserFichierClients(fichierClient);
+    while(w)
+    {
+      printf("1. Nouveau client\n");
+      printf("2. Client enregistré\n");
+      do{
+        printf("Choix (1|2):");clean_keyboard();scanf("%d", &choixMenu);
+      }while(!(choixMenu<=2 && choixMenu>=1));
+      switch (choixMenu)
+      {
+        case 1:
+          client = malloc(sizeof(Client));
+          encoderClient(client);
+          afficherClient(client, &date);
+          ajouterClientBin(clientF, client);
+          w = gestionClient(client, &date);
+          break;
+        case 2:
+          printf("Nom du client (sensible a la casse) : ");
+          clean_keyboard();scanf("%s", nomClient);
+          printf("\nPrenom du client (sensible a la casse) : ");
+          clean_keyboard();scanf("%s", prenomClient);
+          client = rechercheClient(nomClient, prenomClient clientF, &date);
+          if(client != NULL)
+          {
+            w = gestionClient(client, &date);
+          }
+          else
+          {
+            printf("Client non trouvé !\n");
+            printf("%d",(int)sizeof(Client));
+          }
+          break;
+      }
+    }
+    fclose(clientF);
+    return 0;
+}
+void encoderDate(Date * date, char invite[__STRLEN__])
+{
+  do {
+    printf("%s\n", invite);
+    printf("Entrez la date sous cette forme : jj/mm/aaaa\n");
+    scanf("%d/%d/%d",&(date->jour),&(date->moi),&(date->annee));
+  } while(!dateValide(date));
+}
+
+Bool dateValide(Date * date)
+{
+    int j = date->jour;
+    int m = date->moi;
+    int a = date->annee;
+    int daysinmonth[12]={31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+    if(y % 400 == 0 || (y % 100 != 0 && y % 4 == 0))//Si bis février = 29
+      daysinmonth[1]=29;
+    if (m<13)
+    {
+      if( d <= daysinmonth[m-1] )
+        return 1;
+      else
+        return 0;
+    }
+    else
+      return 0;
+}
+
+void encoderArticle(Article * article)
+{
+  printf("\nVeuillez entrer le nom : ");
+  clean_keyboard();
+  scanf("%34s", article->deisgnation);
+  printf("\nVeuillez entrer le prix a l'unite hors TVA : ");
+  clean_keyboard();
+  scanf("%f", &article->prixHTVA);
+  printf("\nVeuillez entrer la quantite desiree : ");
+  clean_keyboard();
+  scanf("%d", &article->quant);
+}
+
+void encoderClient(Client * client)
+{
+  printf("Encodage Client\n");
+  client->fidelite = 0;
+  if(!(printf("Entrez la rue :") && clean_keyboard() && fgets(client->adresse.rue,__STRLEN__,stdin) != NULL && \
+    printf("\nEntrez le numero :" ) && clean_keyboard() && fgets(client->adresse.numero,__STRLEN__,stdin) != NULL && \
+    printf("\nEntrez la localité :") && clean_keyboard() && fgets(client->adresse.localite,__STRLEN__,stdin) != NULL && \
+    printf("\nEntrez le code postal :") && clean_keyboard() && scanf("%d", &(client->adresse.codePostal)) && \
+    printf("\nNom client :") && clean_keyboard() && fgets(client->nom,__STRLEN__,stdin) != NULL) && \
+    printf("\nPrenom client :") && clean_keyboard() && fgets(client->prenom,__STRLEN__,stdin) != NULL))
+  {
+    printf("\nErreur lors de l'encodage de l'adresse");
+    exit(-1);
+  }
+  cleanFgets(client->adresse.rue);cleanFgets(client->adresse.numero);cleanFgets(client->adresse.localite);
+  cleanFgets(client->nom);cleanFgets(client->prenom);
+  if(!(printf("\n Entrez le numéro de tél. :") && clean_keyboard() &&fgets(client->contact.telephone,13,stdin) && \
+    printf("\nEntrez l'adresse email :") && clean_keyboard() &&fgets(client->contact.email,__STRLEN__,stdin)))
+  {
+    printf("\nErreur lors de l'encodage des coo de contact");
+    exit(-1);
+  }
+  cleanFgets(client->contact.telephone);cleanFgets(client->contact.email);
+  encoderDate(&(client->anniversaire), "\nAnniversaire client:");
+}
+void afficherClient(Client *client, Date *date)
+{
+  printf("Client : %s %s (%d)\n", client->nom, client->prenom, ageClient(client, date));
+  printf("rue : %s\n",client->adresse.rue);
+  printf("numero : %s\n",client->adresse.numero);
+  printf("localité : %s\n",client->adresse.localite);
+  printf("code postal : %d\n",client->adresse.codePostal);
+  printf("numéro de tél. : %s\n",client->contact.telephone);
+  printf("adresse email : %s\n",client->contact.email);
+  printf("\nPoints de fidelite aqui : %d\n", client->fidelite);
+}
+void sauvegarderClient(Client *client, FILE * file, Date *date)
+{
+  fprintf(file, "Client : %s %s (%d)\n", client->nom, client->prenom, ageClient(client, date));
+  fprintf(file, "rue : %s\n",client->adresse.rue);
+  fprintf(file, "numero : %s\n",client->adresse.numero);
+  fprintf(file, "localité : %s\n",client->adresse.localite);
+  fprintf(file, "code postal : %d\n",client->adresse.codePostal);
+  fprintf(file, "numéro de tél. : %s\n",client->contact.telephone);
+  fprintf(file, "adresse email : %s\n",client->contact.email);
+  fprintf(file, "\nPoints de fidelite aqui : %d\n", client->fidelite);
+}
+void encoderFacture(Panier * panier)
+{
+  char continuer = 'y';
+  do{
+    if(panier->nbrArt <= __MAXNBRART__)
+    {
+      encoderArticle(&(panier->article[panier->nbrArt-1]));
+      printf("Y-a-t-il encore un article ?(Y|n)");
+      clean_keyboard();
+      scanf("%c", &continuer);
+      if(panier->nbrArt < __MAXNBRART__ && (continuer|0b00100000) == 'y')
+      {
+        panier->nbrArt++;
+        Article * tempArticle;
+        tempArticle = (Article*)realloc(panier->article, sizeof(Article)*(panier->nbrArt));
+        if(panier->article == NULL)
+        {
+          printf("ERREUR ALLOCATION !");
+          free(tempArticle);
+          free(panier->article);
+          exit(-1);
+        }
+        else
+        {
+          panier->article = tempArticle;
+        }
+      }
+      else if((continuer|0b00100000) == 'y')
+      {
+        system("cls");
+        printf("Vous avez ateint le nombre d'article maximum !\n\n");
+        break;
+      }
+    }
+  }while((continuer|0b00100000) == 'y' && panier->nbrArt <= __MAXNBRART__);
+}
+FILE * creerFichier(Date * date, Client * client)
+{
+  char fileName[__STRLEN__+16];
+  fileName[0] = '\0';
+  char dir[__STRLEN__];
+  int i;
+  char buf[5];
+  printf("Dossier d'enregistrement : ");
+  clean_keyboard();
+  scanf("%s", dir);
+  //Toute cette partie aurais pus être remplacé par un sprintf
+  strcat(fileName,client->nom);
+  itoaY(date->annee, buf);
+  strcat(fileName,buf);
+  itoaDM(date->moi, buf);
+  strcat(fileName, buf);
+  itoaDM(date->jour, buf);
+  strcat(fileName, buf);
+  strcat(fileName,"_");
+
+
+  for(i=1; i<= 99; i++)
+  {
+    char fileNameTmp[__STRLEN__+16+255];
+    sprintf(fileNameTmp,"%s%s%d.txt",dir,fileName,i);
+      if(!fichierExistant(fileNameTmp))
+      {
+        FILE * f = fopen(fileNameTmp,"w");
+        if(f==NULL)
+        {
+          printf("Erreur lors de l'ouverture du fichier");
+         return creerFichier(date, client);
+        }
+        else
+          return f;
+      }
+  }
+  return NULL;
+}
+Bool fichierExistant(char * filename)
+{
+  FILE * f = fopen(filename, "r");
+  fclose(f);
+  if(f==NULL)
+    return FALSE;
+  else
+    return TRUE;
+}
+void sauvergarderFacture(FILE * file, Date * date, Client * client)
+{
+  int i;
+  float prixTot = 0;
+  fprintf(file,"La Bulle Informatique\nRoute du Condroz 78, 4123 Neupre\n");
+  fprintf(file,"\nFacture a payer\n");
+  fprintf(file,"Date de facturation :");
+  fprintf(file,"%02d/%02d/%02d", date->jour, date->moi, date->annee);
+  fprintf(file, "\n Info client :");
+  sauvegarderClient(client, file, date);
+  fprintf(file,"\n|---------------------------------------------------------------------------------------------|\
+                \n|         Designation              |     prixHTVA    |   Quantite   |   10%%   |   prixTVAC    |\
+                \n|---------------------------------------------------------------------------------------------|");
+
+  for(i=0;client->panier.nbrArt>i;i++)
+  {
+    fprintf(file,"\n|%34s|%12.2f Eur |%14d|    %c    |%12.2f   |",\
+            client->panier.article[i].deisgnation,client->panier.article[i].prixHTVA,client->panier.article[i].quant\
+            ,(client->panier.article[i].quant>=20)?'x':' ',\
+            (client->panier.article[i].quant>=20)?client->panier.article[i].prixHTVA*__TVA__*__REDUC__*client->panier.article[i].quant:client->panier.article[i].prixHTVA*__TVA__*client->panier.article[i].quant);
+    prixTot += (client->panier.article[i].quant>=20)?client->panier.article[i].prixHTVA*__TVA__*__REDUC__*client->panier.article[i].quant:client->panier.article[i].prixHTVA*__TVA__*client->panier.article[i].quant;
+  }
+  fprintf(file,"\n|---------------------------------------------------------------------------------------------|");
+  fprintf(file,"\nPrix totale :%f", prixTot);
+  fprintf(file, "\nPoints de fidelite aqui : %d\n", client->fidelite);
+}
+
+void afficherFacture(Date * date, Client * client)
+{
+  int i;
+  float prixTot = 0;
+  printf("La Bulle Informatique\nRoute du Condroz 78, 4123 Neupre\n");
+  printf("\nFacture a payer\n");
+  printf("Date de facturation :");
+  printf("%02d/%02d/%02d", date->jour, date->moi, date->annee);
+  printf("\n Info client :");
+  afficherClient(client, date);
+  printf("\n|---------------------------------------------------------------------------------------------|\
+          \n|         Designation              |     prixHTVA    |   Quantite   |   10%%   |   prixTVAC    |\
+          \n|---------------------------------------------------------------------------------------------|");
+
+  for(i=0;client->panier.nbrArt>i;i++)
+  {
+    printf("\n|%34s|%12.2f Eur |%14d|    %c    |%12.2f   |",\
+            client->panier.article[i].deisgnation,client->panier.article[i].prixHTVA,client->panier.article[i].quant\
+            ,(client->panier.article[i].quant>=20)?'x':' ',\
+            (client->panier.article[i].quant>=20)?client->panier.article[i].prixHTVA*__TVA__*__REDUC__*client->panier.article[i].quant:client->panier.article[i].prixHTVA*__TVA__*client->panier.article[i].quant);
+    prixTot += (client->panier.article[i].quant>=20)?client->panier.article[i].prixHTVA*__TVA__*__REDUC__*client->panier.article[i].quant:client->panier.article[i].prixHTVA*__TVA__*client->panier.article[i].quant;
+  }
+  printf("\n|---------------------------------------------------------------------------------------------|");
+  client->fidelite = pointsFidelite(prixTot);
+  printf("\nPrix totale :%f", prixTot);
+  printf("\nPoints de fidelite aqui : %d\n", client->fidelite);
+
+}
+
+
+void cleanFgets(char * str)
+{
+  char *p = strchr(str, '\n');
+  if(p!=NULL)
+    *p = '\0';
+  else
+  {
+    printf("Une erreur est arrivé lors du nettoygae \\0");
+    exit(-1);
+  }
+}
+int itoaY(int i, char * buf)
+{
+  buf [0] = '0';
+  buf [1] = '0';
+  buf [2] = '0';
+  buf [3] = '0';
+  buf [4] = '\0';
+  int j;
+  if(!i)
+    return 1;
+  buf [3] = '1';
+  for(j=1; j<=i && j<=9999 ; j++)
+  {
+    if(!(j%1000))
+    {
+      buf[0]++;
+      buf[1]='0';
+      buf[2]='0';
+      buf[3]='0';
+    }
+    else if(!(j%100))
+    {
+      buf[1]++;
+      buf[2]='0';
+      buf[3]='0';
+    }
+    else if(!(j%10))
+    {
+      buf[2]++;
+      buf[3]='0';
+    }
+    else
+    {
+      buf[3]++;
+    }
+  }
+  if(j>9999)
+    return 0;
+  else
+    return 1;
+}
+int itoaDM(int i, char * buf)
+{
+  buf[0] = '0';
+  buf[1] = '0';
+  buf[2] = '\0';
+  int j;
+  if(!i)
+    return 1;
+  buf[1]++;
+  for(j=1; j<=i && j<=99 ; j++)
+  {
+    if(!(j%10))
+    {
+      (buf[0])++;
+      (buf[1])='0';
+    }
+    else
+    {
+      (buf[1])++;
+    }
+  }
+  if(j>99)
+    return 0;
+  else
+    return 1;
+}
+
+Bool clean_keyboard()
+{
+  fflush(stdin);
+  //  char c;
+//while ((c = getchar()) != '\n' && c != EOF) { }
+  /*  do {
+        c = getc(stdin);
+        printf("%c\n", c);
+    } while (c != '\n' && c != EOF);*/
+    return 1;
+}
+
+int ageClient(Client * client, Date * date)
+{
+  if((date->moi == client->anniversaire.moi && date->jour >= client->anniversaire.jour) || (date->moi > client->anniversaire.moi))//anniversaire passé
+  {
+    return (date->annee - client->anniversaire.annee);
+  }
+  else
+    return (date->annee - client->anniversaire.annee - 1);
+}
+
+int pointsFidelite(float prix)
+{
+  return (int)(prix/10);
+}
+
+
+void gestionFacture(Client * client, Date * date)
+{
+  FILE * file;
+
+
+  printf("%d/%d/%d\n", date->jour, date->moi, date->annee );
+  file = creerFichier(date, client);
+
+  client->panier.article = (Article *)malloc(sizeof(Article));
+  client->panier.nbrArt = 1;
+  if(client->panier.article == NULL)
+  {
+    printf("ERREUR ALLOCATION ARTICLE!");
+    free(client->panier.article);
+    exit(-1);
+  }
+
+  encoderFacture(&client->panier);
+  afficherFacture(date, client);
+  sauvergarderFacture(file, date, client);
+  // getch();
+  fclose(file);
+  free(client->panier.article);
+}
+
+Client * rechercheClient(char nom[__STRLEN__], char prenom[__STRLEN__], FILE * clientF, Date * date)
+{
+  Client * client = NULL;
+  client = malloc(sizeof(Client));
+  fseek(clientF, sizeof(unsigned long int)+sizeof(Bool), SEEK_SET); //On se possitionne apprès le nbr de client
+  clearerr(clientF); //Clear EOF
+  do
+  {
+    fread(client, sizeof(Client), 1, clientF);
+  }while(!feof(clientF) && compNP(client->nom, client->prenom, nom, prenom));
+  if(feof(clientF))
+    return NULL;
+  else
+    return client;
+}
+
+Bool gestionClient(Client * client, Date * date)
+{
+  char choix;
+  while(1)
+  {
+    do
+    {
+      printf("A. Donnees client\n");
+      printf("B. Facture\n");
+      printf("C. Retour\n");
+      printf("D. Quitter");
+      clean_keyboard();scanf("%c", &choix);
+      choix |= 0b00100000;
+    }while(!(choix == 'a' || choix == 'b' || choix == 'c' || choix == 'd'));
+    switch (choix) {
+    case 'a':
+      afficherClient(client, date);
+      break;
+    case 'b':
+      gestionFacture(client, date);
+      break;
+    case 'c':
+      return 1;
+      break;
+    case 'd':
+      return 0;
+      break;
+    }
+  }
+}
+
+FILE * localiserFichierClients(char fichierClient[__STRLEN_FILE__])
+{
+  FILE * clientF;
+  char rep[__STRLEN_FILE__];
+  char repTmp[__STRLEN_FILE__];
+  printf("Repertoir ou se trouve le fichier client.dat");
+  clean_keyboard();
+  scanf("%s", rep);
+  sprintf(repTmp,"%sclients.dat", rep);
+  clientF = fopen(repTmp, "r");
+  if(clientF == NULL)
+  {
+    char c;
+    fclose(clientF);
+    printf("\nLe fichier n'existe pas. Voulez-vous le creer (C) ou changer de repertoir (R) (C|R)?");
+    clean_keyboard();scanf("%c", &c);
+    if(c&0b00100000 == 'c')
+    {
+      clientF = fopen(repTmp, "wb");
+      fwrite(0, sizeof(Bool), 1, clientF); //Les 1e bits stockent si fichier trier et le nbr de client
+      fwrite(0, sizeof(unsigned long int), 1, clientF);
+      fclose(clientF);
+    }
+    else
+      return localiserFichierClients(fichierClient);
+  }
+  else
+    fclose(clientF);
+  clientF = fopen(repTmp, "r+b");
+  if(clientF == NULL)
+  {
+    printf("\nErreur ouverture fichier");
+    return localiserFichierClients(fichierClient);
+  }
+  strcpy(fichierClient, repTmp);
+  return clientF;
+}
+
+int ajouterClientBin(FILE * clientF, Client * client)
+{
+  int posi;
+  unsigned long int nbClient;
+  fseek(clientF,0,SEEK_SET);
+  fread(&nbClient,sizeof(unsigned long int),1,clientF);
+  fseek(clientF,0,SEEK_SET);
+  nbClient++;
+  fwrite(nbClient, sizeof(unsigned long int),1,clientF);
+
+  fseek(clientF, 0, SEEK_END);
+  posi = ftell(clientF);
+  fwrite(client, sizeof(Client), 1, clientF);
+  fseek(clientF, 0, SEEK_END);
+  fflush(clientF);
+  return posi;
+}
+int compNP(char nom1[__STRLEN__], char prenom1[__STRLEN__],char nom2[__STRLEN__], char prenom2[__STRLEN__])
+{
+  char np1[__STRLEN__*2];
+  char np2[__STRLEN__*2];
+  sprinf(np1,"%s%s", nom1, prenom1);
+  sprinf(np2,"%s%s", nom2, prenom2);
+  return strcmp(np1,np2);
+}
+void qSortClientBinByNP(FILE * clientF)
+{
+  Client client1, client2;
+  size_t sizeClient = sizeof(Client);
+  Bool trier;
+  fseek(clientF, 0, SEEK_SET);
+  clearerr(clientF);
+  unsigned long int nbrClients = 0;
+  fread(&nbrClients,sizeof(nbrClients),1, clientF);
+  fread(&trier, sizeof(Bool),1,clientF);
+  if(!trier)
+  {
+    const unsigned int start = ftell(clientF);
+    while(!feof(clientF))
+    {
+      fread(&client1, sizeClient, 1, clientF);
+      if(feof(clientF)) //On est a la fin du fichier inutile d'aller plus loin
+        break;
+      fread(&client2, sizeClient, 1, clientF);
+      switch (compNP(client1.nom,client1.prenom,client2.nom,client2.prenom))
+      {
+        case -1:
+          fseek(clientF,-sizeClient);
+          break;
+        case 1:
+          fseek(clientF,-(2*sizeClient));
+          fwrite(client2,sizeClient,1,clientF);
+          fwrite(client1,sizeClient,1,clientF);
+          if((ftell(clientF)-(2*sizeClient))>start) //On est au début du fichier, inutile de comparer l'élem précédent
+            fseek(clientF,-sizeClient);
+          else
+            fseek(clientF,-(3*sizeClient);
+          clearerr(clientF);
+          break;
+        case 0:
+          fseek(clientF,-sizeClient);
+          break;
+      }
+      fflush(clientF);
+    }
+  }
+}