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DescriptionA histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have different heights. For example, the figure on

Mike is the president of country What-The-Fatherland. There are n bears living in this country besides Mike. All of them are standing in a line and they are numbered from 1 to n from left to right

DescriptionBill is developing a new mathematical theory for human emotions. His recent investigations are dedicated to studying how good or bad days influent people's memories about some period of

DescriptionSome of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hair day! Since each cow is self-conscious about her messy hairstyle, FJ wants to count the number of other cows that can

DescriptionLittle Bob is a famous builder. He bought land and wants to build a house. Unfortunately, the problem is theland’s terrain, it has a variable elevation.The land is shaped like a rec

题目描述：在一个M * N的矩阵中，所有的元素只有0和1，从这个矩阵中找出一个面积最大的全1子矩阵，所谓最大是指元素1的个数最多。输入：输入可能包含多个测试样例。对于每个测试案例，输入的第一行是两个整数m、n(1矩阵共有m行，每行有n个整数，分别是0或1，相邻两数之间严格用一个空格隔开。输出：对应每个测试案例，输出矩阵中面积最

Problem DescriptionYJQQQAQ has an array A of length n. He defines a function fl,r,k where l,r,k are positive integers that satisfies l≤r and r×k≤n, and the value of the function equals to 

Time Limit: 5000MS Memory Limit: 65536KTotal Submissions: 9414 Accepted: 3123DescriptionA substring of a string T is defined as:T(i, k)=TiTi+1...Ti+k-1, 1≤i≤i+k-1≤|T|.