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  1. #include <stdio.h>
  2. int sumodd(int m){
  3. 	if(m<=0){
  4. 		return 0;
  5. 	}
  6.     if(m%2==1){
  7.     	return m+sumodd(m-2);
  8.     }else{
  9.     return 	sumodd(m-1);
  10.     }
  11. }
  12. int main(void) {
  13. 	int a;
  14. 	scanf("%d",&a);
  15. 	int S=sumodd(a);
  16. 	printf("%d",S);
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/PtYAGh
language:
C (gcc 8.3)
created:
8 hours ago
visibility:
public

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