CF1341A.Nastya and Rice

普及/提高-

通过率:0%

AC君温馨提醒

该题目为【codeforces】题库的题目,您提交的代码将被提交至codeforces进行远程评测,并由ACGO抓取测评结果后进行展示。由于远程测评的测评机由其他平台提供,我们无法保证该服务的稳定性,若提交后无反应,请等待一段时间后再进行重试。

题目描述

Nastya just made a huge mistake and dropped a whole package of rice on the floor. Mom will come soon. If she sees this, then Nastya will be punished.

In total, Nastya dropped nn grains. Nastya read that each grain weighs some integer number of grams from aba - b to a+ba + b , inclusive (numbers aa and bb are known), and the whole package of nn grains weighs from cdc - d to c+dc + d grams, inclusive (numbers cc and dd are known). The weight of the package is the sum of the weights of all nn grains in it.

Help Nastya understand if this information can be correct. In other words, check whether each grain can have such a mass that the ii -th grain weighs some integer number xix_i (abxia+b)(a - b \leq x_i \leq a + b) , and in total they weigh from cdc - d to c+dc + d , inclusive ( cdi=1nxic+dc - d \leq \sum\limits_{i=1}^{n}{x_i} \leq c + d ).

输入格式

The input consists of multiple test cases. The first line contains a single integer tt (1t1000)(1 \leq t \leq 1000) — the number of test cases.

The next tt lines contain descriptions of the test cases, each line contains 55 integers: nn (1n1000)(1 \leq n \leq 1000) — the number of grains that Nastya counted and a,b,c,da, b, c, d (0b<a1000,0d<c1000)(0 \leq b < a \leq 1000, 0 \leq d < c \leq 1000) — numbers that determine the possible weight of one grain of rice (from aba - b to a+ba + b ) and the possible total weight of the package (from cdc - d to c+dc + d ).

输出格式

For each test case given in the input print "Yes", if the information about the weights is not inconsistent, and print "No" if nn grains with masses from aba - b to a+ba + b cannot make a package with a total mass from cdc - d to c+dc + d .

输入输出样例

  • 输入#1

    5
    7 20 3 101 18
    11 11 10 234 2
    8 9 7 250 122
    19 41 21 321 10
    3 10 8 6 1

    输出#1

    Yes
    No
    Yes
    No
    Yes

说明/提示

In the first test case of the example, we can assume that each grain weighs 1717 grams, and a pack 119119 grams, then really Nastya could collect the whole pack.

In the third test case of the example, we can assume that each grain weighs 1616 grams, and a pack 128128 grams, then really Nastya could collect the whole pack.

In the fifth test case of the example, we can be assumed that 33 grains of rice weigh 22 , 22 , and 33 grams, and a pack is 77 grams, then really Nastya could collect the whole pack.

In the second and fourth test cases of the example, we can prove that it is impossible to determine the correct weight of all grains of rice and the weight of the pack so that the weight of the pack is equal to the total weight of all collected grains.

首页