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  1. #include <stdio.h>
  2. //課題B-1: 1からnまでの和を求めるコードを完成させてください
  3. int sum(int n){
  4. 	int sum=0;
  5. 	for(int i=0;i<=n;i++){
  6. 		sum=sum+i;
  7. 	}
  8. 	return sum;
  9. }
  10.  
  11. int main(void) {
  12. 	int a,b;
  13.     a = 10;
  14.     b = sum(a);
  15.     printf("1から%dまでの和は%d", a,b );
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5284KB
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1から10までの和は55
https://ideone.com/23bOUQ
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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