Discussion :

[ludovic787]

j'ai inseré un if vers la fin de mon code pour choisir entre noir ou blanc:
main.c

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#include <stdio.h>
#include <stdlib.h>
int c=0;
int i,j;
unsigned char p[19][19];  /* go board */
unsigned char l[19][19];  /* liberty of current color */
unsigned char ma[19][19]; /* working matrix for marking */
unsigned char ml[19][19]; /* working matrix for marking */
char ans[2];
int p1move, p2move;        /* p1 color, p2 color */
int lib;                  /* current stone liberty */
int p1ik, p1jk;             /* location of p1 stone captured */
int p2ik, p2jk;             /* location of p2 stone captured */
int p1k, p2k;               /* no. of stones captured by p1 and p2 */
int new=0;
void showboard(int c);
int main(int argc,char *argv[]){
 
while ((c!=1)&&(c!=2)&&(c!=3)&&(c!=4)&&(c!=5)){
	printf ("Taille du Goban:\n\t1) 5x5\n\t2) 7x7\n\t3) 9x9\n\t4) 13x13\n\t5) 19x19\n\nVotre choix:");
	scanf("%d",&c);
}
 
if ((c==1))
	{
	/* init board */
		for (i = 0; i < 5; i++)
		for (j = 0; j < 5; j++)
			p[i][j] = 0;
	}
if ((c==2))
	{
	/* init board */
		for (i = 0; i < 7; i++)
		for (j = 0; j < 7; j++)
			p[i][j] = 0;
	}
if ((c==3))
	{
	/* init board */
		for (i = 0; i < 9; i++)
		for (j = 0; j < 9; j++)
			p[i][j] = 0;
	}
if ((c==4))
	{
	/* init board */
		for (i = 0; i < 13; i++)
		for (j = 0; j < 13; j++)
			p[i][j] = 0;
	}
if ((c==5))
	{
	/* init board */
		for (i = 0; i < 19; i++)
		for (j = 0; j < 19; j++)
			p[i][j] = 0;
	}
 
 
 
 if (!new)  /* new game */
     {
 
/* choose color */
      printf("\nChoose side(b or w)? ");
      scanf("%c",ans);
      if (ans[0] == 'b')
        {
         p1move = 1;   /* P1 white */
         p2move = 2;   /* P2 black */
        }
      else
        {
         p1move = 2;   /* P1 black */
         p2move = 1;   /* P2 white */
       }
    }
 
showboard(c);
 
/* main loop
 * tant que pas capturer de pierres 
 * lit mouvement joueur1
 * enleve pierre
 * lit mouvement joueur2
 * enleve pierre
 * */
 
 
 
return 0;
}

puis showboard.c

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#include <stdio.h>
#include <stdlib.h>
extern unsigned char p[19][19];
extern int p1move, p2move;        /* p1 color, p2 color */
extern int lib;                  /* current stone liberty */
extern int p1ik, p1jk;             /* location of p1 stone captured */
extern int p2ik, p2jk;             /* location of p2 stone captured */
extern int p1k, p2k;               /* no. of stones captured by p1 and p2 */
int ii=0;
int i=0;
int j=0;
void showboard(int c){
 
if (c==1){  /*goban 5x5*/
	printf("   A B C D E\n");
		for (i = 0; i < 5; i++){
		ii = 5 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 5; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
		printf("%2d",ii);
		printf("\n");
 
}
	printf("   A B C D E\n");
}
 
if (c==2){  /*goban 7x7*/
	printf("   A B C D E F G\n");
		for (i = 0; i < 7; i++){
		ii = 7 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 7; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
           	else printf(" X");
 
		printf("%2d",ii);
		printf("\n");
 
     }
	printf("   A B C D E F G\n");
}
 
if (c==3){  /*goban 9x9*/ 
	printf("   A B C D E F G H J\n");
		for (i = 0; i < 9; i++){
		ii = 9 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 9; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J\n");
}
 
if (c==4){  /*goban 13x13*/
	printf("   A B C D E F G H J K L M N\n");
		for (i = 0; i < 13; i++){
		ii = 13 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 13; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J K L M N\n");
}
 
if (c==5){  /*goban19x19*/
	printf("   A B C D E F G H J K L M N O P Q R S T\n");
		for (i = 0; i < 19; i++){
		ii = 19 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 19; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J K L M N O P Q R S T\n");
}
if (p2move == 1)
      printf("     Your color: White O\n");
   else
      if (p2move == 2)
	 printf("     Your color: Black X\n");
      else
	 printf("\n");
 if (p1move == 1)
	    printf("     My color:   White O\n");
	 else
	    if (p1move == 2)
	       printf("     My color:   Black X\n");
	    else
	       printf("\n");
}

mais une fois compilé je ne peux pas choisir entre black or white.
J'y arrive quand j'utilise scanf(%d,&s) avec int mais pas avec char.
Je ne sais pas de ou viens mon probleme.

merci de votre aide

[edgarjacobs]

Hello,

Je n'ai rien regardé d'autre, mais ans est un char[]. Jusque là, pas de souci. Mais si tu veux faire une scanf() d'un caractère (soit un char) dans ans, c'est

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char ans[2];       // ce que tu as écrit
....
scanf("%c",&ans[0]);
 
if(ans[0]=='b') {
    ....
}

[ludovic787]

bonsoir edgarjacobs,

J'ai essayé de rentrer ton code , mais cela n'a pas fonctionné.

Merci quand meme.

[dalfab]

Bonjour,

Après une saisie, il reste le dernier retour chariot dans le buffer d'entrée (qui est auto filtré quand on lit un nombre ou un mot), pour lire un char il faut l'enlever. Ajoute avant ton scanf("%c",ans);

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{
    int c;
    do  c = getchar() while ( c != '\n'  &&  c != EOF );
}

[ludovic787]

lors de la compilation j'ai des warning:

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cc -O   -c -o count.o count.c
cc -O   -c -o countlib.o countlib.c
cc -O   -c -o eval.o eval.c
cc -O   -c -o exambord.o exambord.c
cc -O   -c -o getij.o getij.c
cc -O   -c -o getmove.o getmove.c
getmove.c: In function ‘getmove’:
getmove.c:22:16: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
                scanf("%s", move);
                ^
cc -O   -c -o main.o main.c
main.c: In function ‘main’:
main.c:22:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&c);
  ^
main.c:67:1: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d",&s);
 ^
main.c:96:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
       scanf("%s", move);
       ^
main.c:109:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
       scanf("%s", move);
       ^
cc -O   -c -o showboard.o showboard.c
cc -O   -c -o suicide.o suicide.c
cc count.o countlib.o eval.o exambord.o getij.o getmove.o main.o showboard.o suicide.o -o gnugo
/bin/rm -f *.o

voici mon code:

count.c

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#include "aigo.h"
 
extern unsigned char p[19][19];   /* go board */
extern unsigned char ml[19][19];  /* working matrix for marking */
extern int lib;                   /* current stone liberty */
 
void count(int i,     /* row number 0 to 18 */
           int j,     /* column number 0 to 18 */
           int color) /* BLACK or WHITE */
/* count liberty of color piece at location i, j
   and return value in lib */
{
/* set current piece as marked */
 ml[i][j] = EMPTY;
 
/* check North neighbor */
 if (i != EMPTY)
   {
    if ((p[i - 1][j] == EMPTY) && ml[i - 1][j])
      {
       ++lib;
       ml[i - 1][j] = EMPTY;
     }
    else
       if ((p[i - 1][j] == color) && ml[i - 1][j])
	  count(i - 1, j, color);
  }
/* check South neighbor */
 if (i != 18)
   {
    if ((p[i + 1][j] == EMPTY) && ml[i + 1][j])
      {
       ++lib;
       ml[i + 1][j] = EMPTY;
     }
    else
       if ((p[i + 1][j] == color) && ml[i + 1][j])
	  count(i + 1, j, color);
  }
/* check West neighbor */
 if (j != EMPTY)
   {
    if ((p[i][j - 1] == EMPTY) && ml[i][j - 1])
      {
       ++lib;
       ml[i][j - 1] = EMPTY;
     }
    else
       if ((p[i][j - 1] == color) && ml[i][j - 1])
	  count(i, j - 1, color);
  }
/* check East neighbor */
 if (j != 18)
   {
    if ((p[i][j + 1] == EMPTY) && ml[i][j + 1])
      {
       ++lib;
       ml[i][j + 1] = EMPTY;
     }
    else
       if ((p[i][j + 1] == color) && ml[i][j + 1])
	  count(i, j + 1, color);
  }
}  /* end count */

countlib.c

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#include "aigo.h"
 
extern unsigned char ml[19][19];  /* working matrix for marking */
 
void countlib(int m,     /* row number 0 to 18 */
              int n,     /* column number 0 to 18 */
              int color) /* BLACK or WHITE */
/* count liberty of color piece at m, n */
{
 int i, j;
 
/* set all piece as unmarked */
 for (i = 0; i < 19; i++)
   for (j = 0; j < 19; j++)
     ml[i][j] = 1;
 
/* count liberty of current piece */
 count(m, n, color);
}  /* end countlib */

eval.c

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#include "aigo.h"
 
extern unsigned char p[19][19];   /* go board */
extern unsigned char l[19][19];   /* liberty of current color */
extern int lib;                   /* current stone liberty */
 
void eval(int color)  /* BLACK or WHITE */
/* evaluate liberty of color pieces */
 {
  int i, j;
 
/* find liberty of each piece */
  for (i = 0; i < 19; i++)
    for (j = 0; j < 19; j++)
      if (p[i][j] == color)
	{
	 lib = 0;
	 countlib(i, j, color);
	 l[i][j] = lib;
      }
}  /* end eval */

exambord.c

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#include "aigo.h"
 
extern unsigned char p[19][19];   /* go board */
extern unsigned char l[19][19];   /* liberty of current color */
extern int p1move;                /* computer color */
extern int p1ik, p1jk;  /* location of p1 stone captured */
extern int p2ik, p2jk;  /* location of p2 stone captured */
extern int p1k, p2k;    /* no. of stones captured by p1 and p2 */
 
void examboard(int color) /* BLACK or WHITE */
/* examine pieces */
{
   int i, j, n;
 
/* find liberty of each piece */
   eval(color);
 
/* initialize piece captured */
   if (color == p1move)
     {
      p1ik = -1;
      p1jk = -1;
    }
   else
     {
      p2ik = -1;
      p2jk = -1;
    }
   n = 0; /* The number of captures this move for Ko purposes */
 
/* remove all piece of zero liberty */
   for (i = 0; i < 19; i++)
     for (j = 0; j < 19; j++)
       if ((p[i][j] == color) && (l[i][j] == 0))
	 {
	  p[i][j] = EMPTY;
/* record piece captured */
	  if (color == p1move)
	    {
	     p1ik = i;
	     p1jk = j;
	     ++p1k;
	   }
	  else
	    {
	     p2ik = i;
	     p2jk = j;
	     ++p2k;
	   }
	  ++n;  /* increment number of captures on this move */
	}
/* reset to -1 if more than one stone captured since  no Ko possible */
   if (color == p1move && n > 1)
     {
       p1ik = -1;   
       p1jk = -1;
     }
   else if ( n > 1 )
     {
       p2ik = -1;
       p2jk = -1;
     }
}  /* end examboard */

getij.c

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#include "aigo.h"
unsigned char move[4];
int getij(char move[],   /* move string */
          int *i,        /* move row number */
          int *j)        /* move column number */
/* convert string input to i, j coordinate */
{
 int k;
 
 if ((move[0] >= 'A') && (move[0] <= 'H'))
    *j = move[0] - 'A';
 else
    if ((move[0] >= 'J') && (move[0] <= 'T'))
       *j = move[0] - 'B';
    else
       if ((move[0] >= 'a') && (move[0] <= 'h'))
	  *j = move[0] - 'a';
       else
	  if ((move[0] >= 'j') && (move[0] <= 't'))
	     *j = move[0] - 'b';
	  else
	     return 0;
 k = move[1] - '0';
 if (move[2]) k = k * 10 + move[2] - '0';
 *i = 19 - k;
 if ((*i >= 0) && (*i <= 18))
    return 1;
 else
    return 0;
}  /* end getij */

getmove.c

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#include <stdio.h>
#include <string.h>
#include "aigo.h"
 
 
extern unsigned char p[19][19];
unsigned char move[3];
extern int p1move, p2move;
extern int p1k, p2k;        /* piece captured */
 
void getmove(char move[],  /* move string */
             int *i,       /* row number of next move */
             int *j)       /* column number of next move */
/* interpret response of human move to board position */
  {
/* move[0] from A to T, move[1] move[2] from 1 to 19 */
/* convert move to coordinate */
            if (!getij(move, i, j) || (p[*i][*j] != EMPTY) || suicide(*i, *j))
              {
               printf("illegal move !\n");
               printf("your move? ");
               scanf("%s", move);
               getmove(move, i, j);
    }
}  /* end getmove */

aigo.h

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/* definitions */
 
#define EMPTY 0
#define WHITE 1
#define BLACK 2
 
/* public functions */
 
extern void count(int i,
                  int j,
                  int color);
 
extern void countlib(int m,
                     int n,
                     int color);
 
extern void eval(int color);
 
extern void examboard(int color);
 
extern int getij(char move[],
                 int *i,
                 int *j);
 
extern void getmove(char move[],
                    int *i,
                    int *j);
 
 
extern void showboard(int c);
 
 
extern int suicide(int i,
                   int j);

main.c

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#include <stdio.h>
#include <stdlib.h>
#include "aigo.h"
 
int c=0;
int i,j;
unsigned char p[19][19];  /* go board */
unsigned char l[19][19];  /* liberty of current color */
unsigned char ma[19][19]; /* working matrix for marking */
unsigned char ml[19][19]; /* working matrix for marking */
int p1move, p2move;        /* p1 color, p2 color */
int lib;                  /* current stone liberty */
int p1ik, p1jk;             /* location of p1 stone captured */
int p2ik, p2jk;             /* location of p2 stone captured */
int p1k, p2k;          /* no. of stones captured by p1 and p2 */
int s; /* side Black or White */
unsigned char move[3];
int main(int argc,char *argv[]){
 
while ((c!=1)&&(c!=2)&&(c!=3)&&(c!=4)&&(c!=5)){
	printf ("Taille du Goban:\n\t1) 5x5\n\t2) 7x7\n\t3) 9x9\n\t4) 13x13\n\t5) 19x19\n\nVotre choix:");
	scanf("%d",&c);
}
 
if ((c==1))
	{
	/* init board */
		for (i = 0; i < 5; i++)
		for (j = 0; j < 5; j++)
			p[i][j] = 0;
	}
if ((c==2))
	{
	/* init board */
		for (i = 0; i < 7; i++)
		for (j = 0; j < 7; j++)
			p[i][j] = 0;
	}
if ((c==3))
	{
	/* init board */
		for (i = 0; i < 9; i++)
		for (j = 0; j < 9; j++)
			p[i][j] = 0;
	}
if ((c==4))
	{
	/* init board */
		for (i = 0; i < 13; i++)
		for (j = 0; j < 13; j++)
			p[i][j] = 0;
	}
if ((c==5))
	{
	/* init board */
		for (i = 0; i < 19; i++)
		for (j = 0; j < 19; j++)
			p[i][j] = 0;
	}
 
showboard(c);
int new=0;
 if (!new)  /* new game */
     {
/* choose color */
      printf("Choisir couleur:\n\t1) Black\n\t2) White\n\nVotre choix:");
scanf("%d",&s);
      if (s == 1)
        {
         p2move = 1;   /* player2 white */
         p1move = 2;   /* player 1 black */
 
       }
      else
        {
         p2move = 2;   /* player 2 black */
         p1move = 1;   /* player 1 white */
 
       }
    }
 
showboard(c);
 
 
/* main loop
 * tant que pas capturer de pierres 
 * lit mouvement joueur1
 * enleve pierre
 * lit mouvement joueur2
 * enleve pierre
 * */
 
while ((p1k<0) || (p2k<0))
 {
	printf("Black move? ");
      scanf("%s", move);
      getmove(move, &i, &j);   /* read human move */
if (s == 1)
    {
p[i][j]= p1move;
examboard(p2move);
}
else
{
p[i][j]= p2move;
examboard(p1move);	
	}
		printf("White move? ");
      scanf("%s", move);
      getmove(move, &i, &j);   /* read human move */
if (s == 1)
    {
p[i][j]= p2move;
examboard(p1move);
}
else
{
p[i][j]= p1move;
examboard(p2move);	
	}
	showboard(c);			
}
return 0;
}

Makefile

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SRC = count.c \
      countlib.c \
      eval.c \
      exambord.c \
      getij.c \
      getmove.c \
      main.c \
      showboard.c \
      suicide.c
 
PRG = aigo
 
OBJ = $(SRC:.c=.o)
 
CFLAGS = -O
 
$(PRG) : $(OBJ)
	$(CC) $(OBJ) -o $@
	/bin/rm -f *.o
 
$(OBJ) : aigo.h

showboard.c

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#include <stdio.h>
#include "aigo.h"
extern unsigned char p[19][19];
extern int p1move, p2move;        /* p1 color, p2 color */
extern int lib;                  /* current stone liberty */
extern int p1ik, p1jk;             /* location of p1 stone captured */
extern int p2ik, p2jk;             /* location of p2 stone captured */
extern int p1k, p2k;               /* no. of stones captured by p1 and p2 */
int ii=0;
int i=0;
int j=0;
void showboard(int c){
 
if (c==1){  /*goban 5x5*/
	printf("   A B C D E\n");
		for (i = 0; i < 5; i++){
		ii = 5 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 5; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
		printf("%2d",ii);
		printf("\n");
 
}
	printf("   A B C D E\n");
}
 
if (c==2){  /*goban 7x7*/
	printf("   A B C D E F G\n");
		for (i = 0; i < 7; i++){
		ii = 7 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 7; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
           	else printf(" X");
 
		printf("%2d",ii);
		printf("\n");
 
     }
	printf("   A B C D E F G\n");
}
 
if (c==3){  /*goban 9x9*/ 
	printf("   A B C D E F G H J\n");
		for (i = 0; i < 9; i++){
		ii = 9 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 9; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J\n");
}
 
if (c==4){  /*goban 13x13*/
	printf("   A B C D E F G H J K L M N\n");
		for (i = 0; i < 13; i++){
		ii = 13 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 13; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J K L M N\n");
}
 
if (c==5){  /*goban19x19*/
	printf("   A B C D E F G H J K L M N O P Q R S T\n");
		for (i = 0; i < 19; i++){
		ii = 19 - i;
		printf("%2d",ii);
 
		for (j = 0; j < 19; j++)
			if (p[i][j] == 0)
			printf(" -");
			else if (p[i][j] == 1)
                printf(" O");
            	else printf(" X");
 
      		printf("%2d",ii);
      		printf("\n");
 
     }
	printf("   A B C D E F G H J K L M N O P Q R S T\n");
}
if (p1move == 1)
      printf("Player 1 color: White O\n");
   else
      if (p1move == 2)
	 printf("Player 1 color: Black X\n");
      else
	 printf("\n");
 if (p2move == 1)
	    printf("Player 2 color: White O\n");
	 else
	    if (p2move == 2)
	       printf("Player 2 color: Black X\n");
	    else
	       printf("\n");
}

suicide.c

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#include "aigo.h"
 
extern unsigned char p[19][19];  /* go board */
extern unsigned char l[19][19];  /* liberty of current color */
extern int p1move, p2move;        /* p1 color, p2 color */
extern int lib;                  /* current stone liberty */
extern int p2ik, p2jk;             /* location of p2 stone captured */
 
int suicide(int i,
            int j)
/* check for suicide move of opponent at p[i][j] */
{
 int m, n, k;
 
/* check liberty of new move */
 lib = 0;
 countlib(i, j, p2move);
 if (lib == 0)
/* new move is suicide then check if kill p1 pieces and Ko possibility */
   {
/* assume alive */
    p[i][j] = p2move;
 
/* check p1 pieces */
    eval(p1move);
    k = 0;
 
    for (m = 0; m < 19; m++)
      for (n = 0; n < 19; n++)
/* count pieces will be killed */
	if ((p[m][n] == p1move) && !l[m][n]) ++k;
 
    if ((k == 0) || (k == 1 && ((i == p2ik) && (j == p2jk))))
/* either no effect on p1 pieces or an illegal Ko take back */
      {
       p[i][j] = EMPTY;   /* restore to open */
       return 1;
      }
    else
/* good move */
      return 0;
   }
 else
/* valid move */
   return 0;
}  /* end suicide */

je ne sais pas si j'ai fais beaucoup d'erreurs dans mon code.
Merci pour vos commentaires.

[Christophe]

C'est la même erreur, ou du moins le même warning.

La fonction scanf retourne le nombre d'éléments entrés et traités par la fonction. Tu as un avertissement car tu ne récupères pas cette valeur.