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  1. #include <stdio.h>
  2. int main(void) {
  3.  
  4.     int a = 4;
  5.     int b = -2;
  6.     int i;
  7.     for (i = 0; i < a; i++){
  8.          b = 2*b+3;
  9. }
  10.     printf("数列anの%d番目の値は%d\n", a, b);
  11. 	return 0;
  12. }
  13.  
  14.  
Success #stdin #stdout 0s 5320KB
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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/a3OaD3
language:
C (gcc 8.3)
created:
8 days ago
visibility:
public

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