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

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