时间限制1 Second 内存限制 512 Mb 题目描述 你有n个问题,你已经估计了第i个问题的难度为Ci,现在你想使用这些问题去构造一个问题集.比赛的问题集必须包含至少两个问题,而且比赛的总难度必须至少为l至多为r,此外最简单的问题和最难的问题之间的差异至少为x请您找出能够选择的问题集的数量. 输入 第一行有T组输入(1 ≤ T ≤ 10接下来一行输入n, l, r, x (1 ≤ n ≤ 10, 1 ≤ l ≤ r ≤ 1e9, 1 ≤ x ≤ 1e6)然后输入n个正整数 c1, c2,…
B. New Year and Old Property time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The year 2015 is almost over. Limak is a little polar bear. He has recently learnt about the binary system. He…
题目链接:http://poj.org/problem?id=2784 Buy or Build Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 1528 Accepted: 592 Description World Wide Networks (WWN) is a leading company that operates large telecommunication networks. WWN would li…
