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  1. #include <stdio.h>
  2. int main()
  3. {
  4.     int a,b,c,s,d,p,q,r;
  5.     scanf("%d%d%d",&a,&b,&c);
  6.  
  7.     if (b==0){
  8.         return 0;
  9. }
  10.  
  11.     s=a+b;
  12.     d=a-b;
  13.     p=a*b;
  14.     q=a/b;
  15.     r=a%b;
  16.  
  17.     switch(c){
  18.         case 1: printf("%d+%d=%d\n",a,b,s);
  19.         break;
  20.         case 2: printf("%d-%d=%d\n",a,b,d);
  21.         break;
  22.         case 3: printf("%d*%d=%d\n",a,b,p);
  23.         break;
  24.         case 4:
  25.             if(r==0){
  26.                 printf("%d÷%d=%d\b",a,b,q);
  27.             }
  28.             else{
  29.                 printf("%d÷%d=%d 余り%d\n",a,b,q,r);
  30.             }
  31.         break;
  32.  
  33.     }
  34.  
  35.     return 0;
  36.  
  37. }
Success #stdin #stdout 0s 5316KB
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https://ideone.com/dfEYTi
language:
C (gcc 8.3)
created:
18 hours ago
visibility:
public

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