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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int cnt,i,a,ritu;
  5. 	cnt = 0;
  6. 	printf("出席なら１欠席なら０を入れてください\n");
  7.  
  8. 	for(i = 0;i < 20;i ++){
  9. 		scanf("%d",&a);
  10. 		if(a == 1){
  11. 			cnt ++;
  12. 		}
  13. 	}
  14.  
  15. 	ritu = cnt * 100 / 20;
  16.  
  17. 	printf("出席人数：%d\n欠席人数：%d\n",cnt,20-cnt);
  18. 	printf("出席率：%d％",ritu);
  19.  
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5280KB
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出席なら１欠席なら０を入れてください
出席人数：13
欠席人数：7
出席率：65％
https://ideone.com/H7NVUV
language:
C (gcc 8.3)
created:
5 hours ago
visibility:
public

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