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  1. #include <stdio.h>
  2. int a(int n);
  3. int b(int n){
  4. 	if(n==0)return 5;
  5. 	else
  6. 	return b(n-1)+6;
  7. }
  8. int a(int n){
  9. 	if(n==0)return 2;
  10. 	else if(n==1)return 7;
  11. 	else return a(n-1)+b(n-1);
  12. }
  13. int n;
  14. int main(void) {
  15. scanf("%d",&n);
  16. printf("%d",a(n));
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/fe44s8
language:
C99 (gcc 8.3)
created:
3 days ago
visibility:
public

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