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  1. #include <stdio.h> 
  2. int main() {
  3. 	int a; 
  4.     printf("１以上１２以下の整数を入力してください：\n");
  5.     scanf("%d",&a); 
  6.     switch(a) { 
  7.     	case 1:
  8.     	case 3:
  9.     	case 5:
  10.     	case 7:
  11.     	case 8:
  12.     	case 10:
  13.     	case 12:
  14.     	printf("31");
  15.     	break;
  16.     	case 4:
  17.     	case 6:
  18.     	case 9:
  19.     	case 11:
  20.     	printf("30");
  21.     	break;
  22.     	case 2:
  23.     	printf("29");
  24.  
  25.     } 
  26.     return 0;
  27. } 
  28.  
Success #stdin #stdout 0s 5280KB
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１以上１２以下の整数を入力してください：
29
https://ideone.com/DjFzVS
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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