ryo_218的博客

标题： k倍区间给定一个长度为N的数列，A1, A2, ... AN，如果其中一段连续的子序列Ai, Ai+1, ... Aj(i <= j)之和是K的倍数，我们就称这个区间[i, j]是K倍区间。你能求出数列中总共有多少个K倍区间吗？输入-----第一行包含两个整数N和K。(1 <= N, K <= 100000)以下N行每行包含一个整数Ai。(1 &l...

1046 Shortest Distance (20)（20 分）The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance between any pair of exits.Input Sp...

1044 Shopping in Mars (25)（25 分）Shopping in Mars is quite a different experience. The Mars people pay by chained diamonds. Each diamond has a value (in Mars dollars M$). When making the payment, the...