#include<iostream> #include<stack> #include<cstring> #include<cstdio> #include<queue> #include<vector> #include<algorithm> #define INF 0x3f3f3f3f using namespace std; ]; int main(){ int n, m, k; ; scanf("%d%d…

题目链接:http://codeforces.com/contest/467/problem/B 题目意思:有 m + 1 个 player 和 n 种类型的 soldiers.每个player被赋予一个数xi,然后将xi 看成二进制数,规定第 j 位 如果为1,表示这个 player 有j 这种类型的soldiers.Fedor 是 第 m + 1 个player,问他能跟前面 m 个players 成为 friends 的 人数.成为friends 的条件是被比较的两个人的不同soldier…

time limit per test4 seconds memory limit per test256 megabytes inputstandard input outputstandard output All our characters have hobbies. The same is true for Fedor. He enjoys shopping in the neighboring supermarket. The goods in the supermarket hav…

D. Fedor and coupons time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output All our characters have hobbies. The same is true for Fedor. He enjoys shopping in the neighboring supermarket. The goo…

D. Fedor and coupons time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output All our characters have hobbies. The same is true for Fedor. He enjoys shopping in the neighboring supermarket. The goo…

Codeforces 467 D 题意:给\(m​\)个单词,以及\(n​\)个置换关系,问将\(m​\)个单词替换多次后其中所含的最少的\(R​\)的数量以及满足这个数量的最短总长度 思路:首先将置换关系构图,然后进行强连通分量分解,为每一个强连通分量保存最小的答案,然后\(dp​\)把一个子\(dag​\)的答案求出即可. \(wa\)了\(3\)次,前\(2\)次是因为\(tarjan\)写错了,另一次是因为没开\(long\ long\).…

D. Fedor and Essay time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output After you had helped Fedor to find friends in the «Call of Soldiers 3» game, he stopped studying completely. Today, the E…

http://codeforces.com/contest/754/problem/D 题意: 给定几组区间,找k组区间,使得它们的公共交集最大. 思路: 在k组区间中,它们的公共交集=k组区间中右端点最小值-k组区间中左端点最大值.如果我们要区间大,那我们应该尽量让左端点小,右端点大. 先对区间按照左端点排序,然后用优先队列处理. 将区间按照左端点从小到大的顺序一一进队列,只需要进右端点即可,如果此时队列内已有k个数,则队首就是这k组区间的最小右端点,而因为左端点是从小到大的顺序进队列的,所以…

After you had helped George and Alex to move in the dorm, they went to help their friend Fedor play a new computer game «Call of Soldiers 3». The game has (m + 1) players and n types of soldiers in total. Players «Call of Soldiers 3» are numbered for…

D. Fedor and Essay time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output After you had helped Fedor to find friends in the «Call of Soldiers 3» game, he stopped studying completely. Today, the E…