Lara Croft, the fiercely independent daughter of a missing adventurer, must push herself beyond her limits when she discovers the island where her father disappeared. In this mysterious island, Lara finds a tomb with a very heavy door. To open the do…
Fliptile Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 14297 Accepted: 5257 Description Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a brainy activity for cows in whic…
#点击传送 题目描述 Recently Vasya found a golden ticket - a sequence which consists of nn digits a1a2-ana1a2-an. Vasya considers a ticket to be lucky if it can be divided into two or more non-intersecting segments with equal sums. For example, ticket 3501783…
传送门 Description 给你一个0/1矩阵,可以将矩阵中的0变成1,问最少经过多少此操作使得矩阵任意一元素四周的元素和为偶数. Input 第一行是一个整数T代表数据组数,每组数据包含以下内容: 第一行是一个整数n,代表矩阵的行列数 接下来n行每行n个用空格隔开的整数,代表矩阵元素. Output 对于每组数据输出一行,格式为Case X: ans Sample Input Sample Output Case : Case : Case : - Hint 1≤n≤15,数据不超过30组…