#include <stdio.h>

#define GRAPHE "graphe"
#define NMAX 32

typedef struct {
  int n;
  int mat[NMAX][NMAX];
} Graph;

void dump(char *name,Graph g)
{
  int i,j;
  FILE *fp;

  fp = fopen(name,"w");
  if (fp == NULL) {
    fprintf(stderr,"Je ne peux pas ouvrir %s\n",name);
    exit(-1);
  }

  fprintf(fp,"%d\n",g.n);
  for (i = 0 ; i < g.n ; i++) {
    for (j = 0 ; j < g.n ; j++)
      fprintf(fp,"%d ",g.mat[i][j]);
    fprintf(fp,"\n");
  }
  fclose(fp);
}

void main(void)
{
  int n,i,j;
  Graph g;


  do {
    printf("nombre de sommets : ");
    scanf("%d",&n);
  } while (n < 0 || n > NMAX);
  g.n = n;

  for (i = 0 ; i < n ; i++) {
    printf("%d : ",i+1);
    for (j = 0 ; j < n ; j++)
      g.mat[i][j] = 0;
    scanf("%d",&j);
    while (j-1 >= 0 && j-1 < n) {
      g.mat[i][j-1] = 1;
      scanf("%d",&j);
    }
  }
  dump(GRAPHE,g);
}