题目描述 Farmer John is building a brand new, NNN -story barn, with the help of his KKK cows ( 1≤N≤K≤10121 \leq N \leq K \leq 10^{12}1≤N≤K≤1012 and N≤105N \leq 10^5N≤105 ). To build it as quickly as possible, he needs your help to figure out how to alloc…

传送门 把线段都读进来然后排序,先按右端点为第一关键字从小到大排序,后按左端点为第二关键字从小到大排序. 注意不能先按左端点后按右端点排序,否则会出现大包小的情况,如下: —————— ———  — 然后直接线段树搞就行,先求区间最小值,如果大于零就更新统一减1. ——代码 #include <cstdio> #include <iostream> #include <algorithm> #define root 1, 1, n #define ls now <…

洛谷题目链接:[USACO07FEB]新牛棚Building A New Barn 题目描述 After scrimping and saving for years, Farmer John has decided to build a new barn. He wants the barn to be highly accessible, and he knows the coordinates of the grazing spots of all N (2 ≤ N ≤ 10,000 co…

1696: [Usaco2007 Feb]Building A New Barn新牛舍 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 394  Solved: 181[Submit][Status][Discuss] Description 经过多年的积蓄,农夫JOHN决定造一个新的牛舍.他知道所有N(2 <= N <= 10,000)头牛的吃草位置,所以他想把牛舍造在最方便的地方. 每一头牛吃草的位置是一个整数点(X_i, Y_i) (-10,0…

题目描述 The cows enjoy mooing at the barn because their moos echo back, although sometimes not completely. Bessie, ever the excellent secretary, has been recording the exact wording of the moo as it goes out and returns. She is curious as to just how mu…

题目传送门 题目描述 After scrimping and saving for years, Farmer John has decided to build a new barn. He wants the barn to be highly accessible, and he knows the coordinates of the grazing spots of all N (2 ≤ N ≤ 10,000 cows. Each grazing spot is at a point…

https://www.luogu.org/problem/show?pid=2957 题目描述 The cows enjoy mooing at the barn because their moos echo back, although sometimes not completely. Bessie, ever the excellent secretary, has been recording the exact wording of the moo as it goes out a…

https://www.luogu.org/problem/P2957 题目描述 The cows enjoy mooing at the barn because their moos echo back, although sometimes not completely. Bessie, ever the excellent secretary, has been recording the exact wording of the moo as it goes out and retur…

传送门 团队里的hash水题,数据小的不用hash都能过.. 也就是前缀hash,后缀hash,再比较一下就行. ——代码 #include <cstdio> #include <cstring> #define ULL unsigned long long int n, m, ans; ], s2[]; ULL ], sum1[], sum2[], bit1[], bit2[]; inline int max(int x, int y) { return x > y ? x…

描述 After scrimping and saving for years, Farmer John has decided to build a new barn. He wants the barn to be highly accessible, and he knows the coordinates of the grazing spots of all N (2 ≤ N ≤ 10,000 cows. Each grazing spot is at a point with int…