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  1. #include<stdio.h>
  2. int main()
  3. {
  4. 	int c, v0, v1, a, l;
  5. 	scanf("%d%d%d%d%d", &c, &v0, &v1, &a, &l);
  6. 	int cnt = 1;
  7. 	c -= v0;
  8. 	while (c > 0)
  9. 	{
  10. 		if (v0 + a <= v1) // v0 + a con <= v1 thi so trang doc ngay hom sau la v0 + a - l
  11. 		{
  12. 			c -= (v0+a-l);
  13. 			v0 += a;
  14. 		}
  15. 		else // v0 + a > v1 thi so trang doc ngay hom sau la v1 - l;
  16. 		{
  17. 			c -= (v1-l);
  18. 		}
  19. 		cnt++;
  20. 	}
  21. 	printf("%d", cnt);
  22. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/KdgeCf
language:
C++14 (gcc 8.3)
created:
15 days ago
visibility:
public

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