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  1. #include <stdio.h>
  2. //a{n} = a{n-2} + a{n-3}, a{0}=3, a{1}=0, a{2}=2(再帰あり版)
  3.  
  4. int rec(int n){
  5.     if(n == 0){
  6.         return 3;
  7.     }
  8.     else if(n == 1){
  9.         return 0;
  10.     }
  11.     else if(n == 2){
  12.         return 2;
  13.     }
  14.     else{
  15.         return rec(n-2) + rec(n-3);
  16.     }
  17.  
  18. }int main(void) {
  19.     int n = 50; 
  20.     for(int i = 0; i <= n; i++){
  21.         printf("%d, ", rec(i));
  22.     }
  23.  
  24. 	return 0;
  25. }
  26.  
  27.  
Success #stdin #stdout 0.01s 5312KB
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stdin
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Standard input is empty
stdout
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3, 0, 2, 3, 2, 5, 5, 7, 10, 12, 17, 22, 29, 39, 51, 68, 90, 119, 158, 209, 277, 367, 486, 644, 853, 1130, 1497, 1983, 2627, 3480, 4610, 6107, 8090, 10717, 14197, 18807, 24914, 33004, 43721, 57918, 76725, 101639, 134643, 178364, 236282, 313007, 414646, 549289, 727653, 963935, 1276942,
https://ideone.com/7hTcDk
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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