fork(1) download
copy 
  1. #include <stdio.h>
  2. //正の奇数nを引数とし，以下の正の奇数の和を求める関数
  3. int rec(int n){
  4.     if (n == 1){
  5.         return 1;
  6.     }
  7. if (n%2==0)
  8. {
  9. return n-1+rec(n-3);
  10. }
  11.     else{
  12.         return n+rec(n-2);
  13.     }
  14. }
  15. int main(void) {
  16.     int n = 11;
  17.     printf("%d以下の正の奇数の和は%d\n", n, rec(n));
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 5328KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
11以下の正の奇数の和は36
https://ideone.com/kb3JDe
language:
C (gcc 8.3)
created:
18 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!