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  1. #include <stdio.h>
  2. //練習問題F
  3.  
  4. int func(int n){
  5.     int a=-1;
  6.     int i;  
  7. 	for(i=0;i<n;i++){
  8. 		a = 3*a +5;
  9. 	} return a;
  10.  
  11. }
  12. int main(void) {
  13. 	int n = 3;
  14.     printf("数列anについて, n=%dのときの値は%d\n", n, func(n));
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5284KB
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Standard input is empty
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数列anについて, n=3のときの値は38
https://ideone.com/pqbF3a
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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