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  1. #include <stdio.h>
  2. int hugu(int a){
  3. 	if(a<2){
  4. 		return 1;
  5. 	}else{
  6. 		return hugu(a-2)+2*hugu(a-1);
  7. 	}
  8. }
  9.  
  10. int main(void) {
  11.    int x=hugu(4);
  12.    printf("%d",x);
  13. 	return 0;
  14. }
  15.  
  16.  
Success #stdin #stdout 0.01s 5320KB
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stdin 
Standard input is empty
stdout 
17
https://ideone.com/kvXB5E
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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