1 #include<stdio.h> 2 3 char s[300]; 4 5 int main() 6 { 7 int n,a,b; 8 char c; 9 double ans; 10 scanf("%d",&n); 11 getchar(); 12 while(n--) 13 { 14 scanf("%c%d%d",&c,&a,&b); 15 getchar(); 16 switch (c) 17 { 18 case '+':printf("%d ",a+b);break; 19 case '-':printf("%d ",a-b);break; 20 case '*':printf("%d ",a*b);break; 21 case '/':a%b?printf("%.2lf ",(double)a/b):printf("%d ",a/b);break; 22 } 23 } 24 }