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  1. #include <stdio.h>
  2. int sum(int n,int m)
  3. {
  4.     if(n-1==m)
  5.         return 1;
  6.     else
  7.         return n+sum(n,n-1);
  8. }
  9.  
  10. int main(void) {
  11. 	int a,b;
  12.  
  13.     scanf("%d %d",&a,&b);
  14.     printf("%d",sum(a,b));
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5308KB
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https://ideone.com/IsQU8r
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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