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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.  
  5. 	int i;
  6. 	int a[10];
  7. 	a[0] = 2;
  8. 	a[1] = 6;
  9.  
  10. 	printf("1項目：%d\n",a[0]);
  11. 	printf("2項目：%d\n",a[1]);
  12.  
  13. 	for(i = 2;i < 10;i ++){
  14. 		a[i] = a[i-1] + a[i-2] * 2 - 3;
  15. 		printf("%d項目：%d\n",i+1,a[i]);
  16. 	}
  17.  
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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1項目：2
2項目：6
3項目：7
4項目：16
5項目：27
6項目：56
7項目：107
8項目：216
9項目：427
10項目：856
https://ideone.com/uWz4Q8
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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