题目链接http://codeforces.com/contest/989/problem/C题目There are four kinds of flowers in the wood, Amaranths, Begonias, Centaureas and Dianthuses.The wood can be represented by a rectangular grid of n r...
题目链接http://codeforces.com/contest/989/problem/B题目The records are expressed as a string s of characters '0', '1' and '.', where '0' denotes a low tide, '1' denotes a high tide, and '.' denotes an un...
题目链接http://codeforces.com/contest/989/problem/A题目The landscape can be expressed as a row of consecutive cells, each of which either contains a flower of colour amber or buff or canary yellow, or is...
题目链接http://poj.org/problem?id=2689题目DescriptionThe branch of mathematics called number theory is about properties of numbers. One of the areas that has captured the interest of number theoreticians...
题目题目描述JSZKC is the captain of the lala team. There are N girls in the lala team. And their height is [1,N] and distinct. So it means there are no two girls with a same height. JSZKC has to arrang...