3-10(判断三角形并输出面积)

<pre name="code" class="cpp"><span style="font-size:24px;">/* Note:Your choice is C IDE */
#include "stdio.h"
int judge(int a,int b, int c)
{
        int S,k;
        if(a+b>c&&a+c>b&&b+c>a)
        {  printf("OK!\n");
           S=(a+b+c)/2;
           printf("该三角形面积为：%d\n",S);
        }
       else
        {  
          printf("Wrong! please insert again:\n");
          k=0;
        }
      return k;
}
void main()
{
    int a,b,c,k;
    k=0;
    do
    {
      printf("please input 3 ints:\n");
      scanf("%d %d %d",&a,&b,&c);
      judge(a,b,c);
    }while(k=1);
   
}</span>