MUH and House of Cards Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 471C Description Polar bears Menshykov and Uslada from the zoo of St. Petersburg and elephant Horace from the zoo o…

题目链接:http://codeforces.com/problemset/problem/471/C 题目意思:有 n 张卡,问能做成多少种不同楼层(floor)的 house,注意这 n 张卡都要用光.每层 floor 都由一定的 room 构成,每两个相邻 room 规定要有一个公共的ceiling.规定从上到下看,每层 floor 的 room 的数量呈递增的形式排布. 好容易想到构成最高层时用的最少数量的card需要多少.可以发现,每层的需要用到的card 可以用这个表达式表示: 3n…

C. MUH and House of Cards   Polar bears Menshykov and Uslada from the zoo of St. Petersburg and elephant Horace from the zoo of Kiev decided to build a house of cards. For that they've already found a hefty deck of n playing cards. Let's describe the…

题目链接:http://codeforces.com/problemset/problem/471/B 题目意思:有 n 个 tasks,编号依次为 1 - n,每个 task 都有一定的难度值来评估.例如,第 i 个 task 的难度值为 hi.现在的任务是把 n 个 task 全部完成,难度值越小的task越先完成.有3个人,都希望自己完成所有task的输出序列是与众不同的,问是否存在至少3条完成所有task的不同序列,没有的话输出 “NO”,否则输出“YES”并输出3条不同的完成序列. 昨…

A. Cards time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n cards (n is even) in the deck. Each card has a positive integer written on it. n / 2 people will play new card game. At…

题目链接: A. Bear and Five Cards //#include <bits/stdc++.h> #include <vector> #include <iostream> #include <queue> #include <cmath> #include <map> #include <cstring> #include <algorithm> #include <cstdio>…

Description Karen just got home from the supermarket, and is getting ready to go to sleep. After taking a shower and changing into her pajamas, she looked at her shelf and saw an album. Curious, she opened it and saw a trading card collection. She re…

题目链接:http://codeforces.com/problemset/problem/471/A 题目数据规模1 - 9,可以用一个数组进行计数,减掉出现四次的数,看看还有几个是非零数,有一个就是大象,有两个就是北极熊:如果没有四个数的,那就是Alien. AC代码: #include <cstdio> using namespace std; int cnt[10]; int x, id; int main() { id = 0; cnt[10] = {0}; for (int i =…

Vanya loves playing. He even has a special set of cards to play with. Each card has a single integer. The number on the card can be positive, negative and can even be equal to zero. The only limit is, the number on each card doesn't exceed x in the a…

Polar bears Menshykov and Uslada from the zoo of St. Petersburg and elephant Horace from the zoo of Kiev got hold of lots of wooden cubes somewhere. They started making cube towers by placing the cubes one on top of the other. They defined multiple t…