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  1. #include <stdio.h>
  2. int main(void) {
  3.     int n,an;
  4.     n = 4;
  5.     an = -2;
  6.     for(int i=0; i<n; i++){
  7.     an=2*an+3;
  8. }
  9.  
  10.  
  11.  
  12.     printf("数列anの%d番目の値は%d\n", n, an);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
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数列anの4番目の値は13
https://ideone.com/yiataW
language:
C++ (gcc 8.3)
created:
12 days ago
visibility:
public

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