OJ刷题：猜名次和找凶手

#include <stdio.h>
int main()
{
  int a = 0;
  int b = 0;
  int c = 0;
  int d = 0;
  int e = 0;
  for (a = 1; a <= 5; a++)
  {
    for (b = 1; b <= 5; b++)
    {
      for (c = 1; c <= 5; c++)
      {
        for (d = 1; d <= 5; d++)
        {
          for (e = 1; e <= 5; e++)
          {
            if (  ((b==2)+(a==3)==1)
              &&((b==2)+(e==4)==1)
              &&((c==1)+(d==2)==1)
              &&((c==5)+(d==3)==1)
              &&((e==4)+(a==1)==1))
            {
              if(a*b*c*d*e==120&&a+b+c+d+e==15)
              printf("a=%d b=%d c=%d d=%d e=%d\n",a,b,c,d,e);
            }
          }
        }
      }
    }
  }
}
return 0；

#include <stdio.h>
int main()
{
  int killer = 0;
  for (killer = 'a'; killer <= 'd'; killer++)
  {
    if ((killer != 'a') +( killer == 'c') 
      +( killer == 'd') +( killer != 'd') == 3)
    {
      printf("凶手是:%c\n", killer);
    }
  }
}
return 0；