A. Thanos Sort time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Thanos sort is a supervillain sorting algorithm, which works as follows: if the array is not sorted, snap your fingers* to rem…
A. Thanos Sort time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Thanos sort is a supervillain sorting algorithm, which works as follows: if the array is not sorted, snap your fingers* to rem…
April Fools Day Contest 2014 A.C.H三道题目 =================================================================== A. The Great Game 这题怎没看懂..看了官方题解真是恍然大悟啊,原来是石头剪刀布啊!!! 8< 代表剪刀啊 () 代表石头啊 [] 代表布啊 真是逆天啊,这么一说还真觉得有点像....尤其是那个剪刀. 给那个出题人的想象力跪了. /* * ===============…
H - A + B Strikes Back A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try? Input The input co…
H. A + B Strikes Back time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientis…
D. Rosetta Problem 题目连接: http://www.codeforces.com/contest/656/problem/D Description ++++++++[>+>++>+++>++++>+++++>++++++>+++++++>++++++++>+++++++++>++++++++++>+ ++++++++++>++++++++++++>+++++++++++++>+++++++++++++…
G. You're a Professional 题目连接: http://www.codeforces.com/contest/656/problem/G Description A simple recommendation system would recommend a user things liked by a certain number of their friends. In this problem you will implement part of such a syst…
F. Ace It! 题目连接: http://www.codeforces.com/contest/656/problem/F Description Input The only line of the input is a string of 7 characters. The first character is letter A, followed by 6 digits. The input is guaranteed to be valid (for certain definit…
E. Out of Controls 题目连接: http://www.codeforces.com/contest/656/problem/E Description You are given a complete undirected graph. For each pair of vertices you are given the length of the edge that connects them. Find the shortest paths between each pa…
C. Without Text 题目连接: http://www.codeforces.com/contest/656/problem/C Description You can preview the image in better quality by the link: http://assets.codeforces.com/files/656/without-text.png Input The only line of the input is a string (between 1…
A. Da Vinci Powers 题目连接: http://www.codeforces.com/contest/656/problem/A Description The input contains a single integer a (0 ≤ a ≤ 35). Input Output a single integer. Output In the first line print "YES" (without quotes), if Polycarpus can perf…
Helvetic Coding Contest 2019 A2 题意:给一个长度为 n 的01序列 y.认为 k 合法当且仅当存在一个长度为 n 的01序列 x,使得 x 异或 x 循环右移 k 位的 01 串得到 y .问合法的 k 的个数. \(n \le 2*10^5\) key:找规律 考虑如何check一个 k 是否合法.那么对于所有的 i 和 i-k 在模 n 的意义下,如果 y 的第 i 位为 0 则二者必须不同,否则必须相同.这样可以用并查集判断是否合法.实际上是把相同的缩起来后…
补题地址:https://zjusummer.contest.codeforces.com/ Contents ZJU-ICPC Summer 2020 Contest 1 by Group A Problem A. MUG Problem B. Count Angles Problem F. Balloons Tower Defence ZJU-ICPC Summer 2020 Contest 2 by Group B Problem A. The Number of Good Interva…
2018 HDU多校第四场赛后补题 自己学校出的毒瘤场..吃枣药丸 hdu中的题号是6332 - 6343. K. Expression in Memories 题意: 判断一个简化版的算术表达式是否合法. 题解: 注意细节即可. 代码: #include <bits/stdc++.h> using namespace std; int n; char s[505]; int main () { int T; cin>>T; for ( ; T; --T) { scanf(&quo…
2018 HDU多校第三场赛后补题 从易到难来写吧,其中题意有些直接摘了Claris的,数据范围是就不标了. 如果需要可以去hdu题库里找.题号是6319 - 6331. L. Visual Cube 题意: 在画布上画一个三维立方体. 题解: 模拟即可. 代码: #include <bits/stdc++.h> using namespace std; int a, b, c, R, C; char g[505][505]; int main () { int T; cin >>…
