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  1. #include <stdio.h>
  2.  
  3. int b(int n) {
  4.     if(n <= 1) {
  5.         return 5;
  6.     }
  7.     return b(n - 1) + 6;
  8. }
  9.  
  10. int a(int n) {
  11.     if(n <= 1) {
  12.         return 2;
  13.     }
  14.     return a(n - 1) + b(n - 1);
  15. }
  16.  
  17. int main() {
  18.    int n;
  19.    scanf("%d", &n);
  20.    printf("%d\n", a(n));
  21.    return 0;
  22. }
  23.  
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/Z5Qdt4
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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