七人排班系统

#include <stdio.h>

int n = 0;
int rest[7][7];
char name[7][3]={"赵","钱","孙","李","周","吴","陈"};
void swap(int *a, int *b) 
{     
    int m;     
    m = *a;     
    *a = *b;     
    *b = m; 
} 

void perm(int list[], int k, int m)
{
    int i;
 int j;
    if(k > m)
    {
  for (i=0; i<7; i++)
  {
   for (j=0; j<7; j++)
   {
    if (rest[i][j] == -1)
     return;
    if (rest[i][j] != list[i])
     continue;
    if (rest[i][j] == list[i])
     break;
   }
  }

  n++;
  printf("Solution: %d\n", n);
  printf("赵  钱  孙  李  周  吴  陈\n");
  printf("=============================================================\n");
  for(i = 0; i <= m; i++)
  {
   switch (list[i])
   {
    case 1: printf("星期一 ");
     break;
    case 2: printf("星期二 ");
     break;
    case 3: printf("星期三 ");
     break;
    case 4: printf("星期四 ");
     break;
    case 5: printf("星期五 ");
     break;
    case 6: printf("星期六 ");
     break;
    case 7: printf("星期日 ");
     break;
    default:
     break;
   }
  }
        printf("\n\n\n");
    }
    else
    {
        for(i = k; i <= m; i++)
        {
             swap(&list[k], &list[i]);
             perm(list, k + 1, m);
             swap(&list[k], &list[i]);
        }
    }
}

int main() 
{
    int list[] = {1, 2, 3, 4, 5, 6, 7};
 int i, j;
 for(i = 0; i < 7; i++)
 {
  printf("%s 选择休息日:\n", name[i]);
  for(j = 0; j < 7; j++)
  {
   scanf("%d", &rest[i][j]);
   if(rest[i][j] == -1)
    break;
  }
 }
 printf("\n\n\n");
 perm(list,0,6);
 printf("总计:%d\n", n);
 getchar();
 getchar();
    return 0;
}