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  1. #include <stdio.h>
  2.  
  3. int sum(int n,int m){
  4. 	if(n==m){
  5. 		return m;
  6. 	}else{
  7. 		return n+sum(n-1,m);
  8. 	}
  9. }
  10.  
  11. int main(void){
  12. 	int a,b;
  13. 	printf("aはb以上の数を入れてください\n");
  14. 	scanf("%d %d",&a,&b);
  15. 	if(a>b){
  16. 	printf("%d",sum(a,b));		
  17. 	}else{
  18. 		printf("aはb以上の数を入れてください\n");
  19. 	}
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5292KB
comments (?)
stdin 
6 3
stdout 
aはb以上の数を入れてください
18
https://ideone.com/z2Lkky
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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