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题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=5882Problem DescriptionRock-paper-scissors is a zero-sum hand game usually played between two people, in which each player simultaneously for

题意：给你四串字符，问你当1转化为3时，2能不能同时转化为4，交换规则是，i与j交换则n-i+1与n-j+1交换思路：把握一条就可以了，不管怎么换，一个字符i对应的那个字符n-i+1是不变的，ac代码：#include #include #include #include using namespacestd;char s1[105],s2[10

题意：给你很多语句，然后让你用这些语句组成一条语句使其值为1，思路：说了这么多，其实是大水题i，只要输出一个语句或上这条语句的非，其他的随便怎样都行ac代码：#include #include #include using namespacestd;int main(){    freopen("important.in","r",stdin

A palindrome sequence is a sequence which is as same as its reversed order. For example, 1 2 3 2 1 is a palindrome sequence, but 1 2 3 2 2 is not. Given a 2-D array of N rows and M columns, your task

Some companies have special requirements for source code format, and it is also good for programmers to keep consistent code style. You are asked to write a simple code formatter for the company to he

There are N kangaroos going out to eat at an Indian restaurant. Theith kangaroo wants to eatexactly xi food. The kangaroos all want to order the same size of plates, but each one can order more th

We have a special convex that all points have the same distance to origin point.As you know we can get N segments after linking the origin point and the points on the convex. We can also get N ang

Apart from having lots of holidays throughout the year, residents of Berland also have wholelucky years. Year is considered lucky if it has no more than 1 non-zero digit in its number. So years 10

Given the sequence A A with n n integers t 1 ,t 2 ,⋯,t n  t1,t2,⋯,tn. Given the integral coefficients a a and b b. The fact that select two elements t i  ti and t j  tj of A A an

题目传送门：思路：三种情况2月29之前2月292月29之后ac代码：#include#includeusing namespace std;int ph(int x){ if(x%400==0||(x%4==0&&x%100!=0)) return 1; return 0;}int main(){ int n;

题意：在一个教室中老师按照学生的做的情况来确定出勤，确定规则是找到每一列的最大值然后找到每一行的最大值，然后取两者的最小值来衡量学生的出勤情况，现在给你出勤人数然后让你写出一种坐的方案，使老师计算的出勤最大思路：先确定最大情况的行列的人的个数然后把它们安排在第一行和第一列，然后剩下的随便填在其他位置，这种方案就可以了ac代码；#include #include #inc

Supposeyouneedtoencryptatopsecretmessagelike“SENDMOREMONKEYS". Youcoulduse a simple substitution cipher, where each letter in the alphabet is replaced with a different letter.However,theseciphersa

题目大意：一种数=2^a*3^b*5^c*7^d

最长公共子序列可以不是连续的，而最长公共串必须是连续的例如  aabbcc和aabc的最长公共子序列是aabc，最长公共子串是aab

有些数据本身很大， 自身无法作为数组的下标保存对应的属性。如果这时只是需要这堆数据的相对属性， 那么可以对其进行离散化处理！离散化：当数据只与它们之间的相对大小有关，而与具体是多少无关时，可以进行离散化。例如9 1 0 5 4 与 5 2 1 4 3 的逆序对个数相同。设有4个数：1234567、123456789、12345678、123456排序

International Cyber Police Corporation (ICPC) had built a new mega-tall business center to host itsheadquarters and to lease some space for extra profit. It has so many floors, that it is impractica

A - Anton and Polyhedrons Anton's favourite geometric figures are regular polyhedrons. Note that there are five kinds of regular polyhedrons:Tetrahedron. Tetrahedron has 4 triangular faces.Cub

Anton likes to listen to fairy tales, especially when Danik, Anton's best friend, tells them. Right now Danik tells Anton a fairy tale:"Once upon a time, there lived an emperor. He was very rich and

Problem H. HeadshotInput file: headshot.inOutput file: headshot.outYou have a revolver gun with a cylinder that has n chambers. Chambers are located in a circle on acylinder. Each chamber can

Some strange code is sent to Da Shan High School. It's said to be the prophet's note. The note is extremely hard to understand. However, Professor Meng is so smart that he successfully found the patte

You may have seen a mechanic typewriter — such devices were widespread just 15 years ago, beforecomputers replaced them. It is a very simple thing. You strike a key on the typewriter keyboard, the

Problem DescriptionLittle A has come to college and majored in Computer and Science.Today he has learned bit-operations in Algorithm Lessons, and he got a problem as homework.Here is the p