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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int a0=2;
  5. int a1=-1;
  6. int a2=0;
  7. int n=0;
  8. int i;
  9. for(i=2;i<=30;i++){
  10. 	a2=-a1+a0+2;
  11. 	n=i;
  12. 	if(a2>5000){
  13. 		break;
  14. 	}
  15. 	a0=a1;
  16. 	a1=a2;
  17. }
  18. printf("初めて５０００を超えるのは%d項目です\n",n);
  19. printf("その時の値は%d\n",a2);
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5316KB
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初めて５０００を超えるのは18項目です
その時の値は7754
https://ideone.com/RUGQ3Z
language:
C99 (gcc 8.3)
created:
17 hours ago
visibility:
public

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