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  1. #include <stdio.h>
  2.  
  3. int sum(int n,int m){
  4.  
  5. 	if(n<m) return 0;
  6.  
  7.  
  8. 	else return sum(n-1,m)+n;
  9.  
  10. }
  11.  
  12. int main(void) {
  13.  
  14. 	int n,m;
  15.  
  16. 	scanf("%d,%d",&n,&m);
  17.  
  18. 	printf("%d",sum(n,m));
  19.  
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5300KB
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stdin
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5,2
stdout
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14
https://ideone.com/Rlcxnc
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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