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  1. #include <stdio.h>
  2. int calculation(int a,int b,int operator);
  3. int main(void) 
  4. {
  5. 	int a,b,c;
  6. 	printf("整数と演算を表す数字を入力:\n"); scanf("%d %d %d",&a,&b,&c);
  7. 	int calculation(a,b,c);
  8. 	return 0;
  9. }
  10. int calculation(int a,int b,int operator)
  11. {
  12. 	int ans,tmp;
  13. 	switch(operator)
  14. 	{
  15. 		case 1: ans = a + b; printf("%d + %d = %d",a,b,ans); break;
  16. 		case 2: ans = a - b; printf("%d - %d = %d",a,b,ans); break;
  17. 		case 3: ans = a * b; printf("%d × %d = %d",a,b,ans); break;
  18. 		case 4: ans = a / b; tmp = a % b; printf("%d ÷ %d = %d余り",a,b,ans,tmp); break;
  19. 		default: printf("error");
  20. 	}
  21. }
Success #stdin #stdout 0s 5284KB
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整数と演算を表す数字を入力:
https://ideone.com/RrOGXG
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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