杭电acm1170

http://acm.hdu.edu.cn/showproblem.php?pid=1170

这题麻烦在于每次输入之后的接收回车，还有对结果是否是整数的判断，The result should be rounded to 2 decimal places If and only if it is not an integer.

#include<stdio.h>
#include<conio.h>
int main()
{
     int a,b,t,ans1;
     double ans2;
     char c,s[20];
     scanf("%d",&t);
     gets(s);
     while(t--)
     {
         scanf("%c%d%d",&c,&a,&b);
         gets(s);
         if(c=='+')
           ans1=a+b;
         else if(c=='-')
           ans1=a-b;
         else if(c=='*')
           ans1=a*b;
         else if(c=='/')
           ans2=(double)a/(double)b;
         if(c=='/')
         {
           if(a%b==0)
            printf("%.0lf\n",ans2);
           else printf("%.2lf\n",ans2);
         }
         else printf("%d\n",ans1);
     }
  return 0;
}