Language:DefaultStarsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 24726 Accepted: 10782DescriptionAstronomers often examine star maps where sta

/*DescriptionConsider equations having the following form: a1x13+ a2x23+ a3x33+ a4x43+ a5x53=0 The coefficients are given integers from the interval [-50,50]. It is consider a solution a system (

/*2002 - SquaresTime Limit:3500MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64uStatusDescriptionA square is a 4-sided polygon whose sides have equal length and adjacent sides form 90

Language:DefaultUltra-QuickSortTime Limit: 7000MS Memory Limit: 65536KTotal Submissions: 31077 Accepted: 11082DescriptionIn this problem, you have to analyz

/*Snowflake Snow SnowflakesTime Limit: 4000MS Memory Limit: 65536KDescriptionYou may have heard that no two snowflakes are alike. Your task is to write a program to determine whether this is rea

楼教主的二维线段树(树状数组)                ---------------这一题是真的不知道怎么做 ,但还是AC了...题目我就不贴了...我就简单说一下题意:1000*1000的矩阵,给你50000个操作C操作 对从左上角(x1,y1)到右下角(x2,y2)的矩形中所有元素取反Q操作 查询某坐标下元素的值一看就是经典树状数组或者线段树了,大部分题解都很偷懒都

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