Codeforces 1080A - Petya and Origami 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1080/problem/A 题目 Petya is having a party soon, and he has decided to invite his $n$ frien...

ECNU 3653 - 她的名字 - 动态规划 题解链接 https://lucien.ink 题目链接 https://acm.ecnu.edu.cn/problem/3653/ 题目 “他走过一个又一个星球， 却始终放不下对她的思念。“ ”深情终究是一趟孤独的旅程， 她是他永远的牵绊。” 我们每个人心中都有一只小狐狸。我们渴望被自己喜欢的人驯服。 爱情是彼此之...

Codeforces 1088A - Ehab and another construction problem 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/A 题目 Given an integer $x$, find 2 integers $a$ and $b$ su...

Codeforces 1088E - Ehab and a component choosing problem 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/E 题目 You’re given a tree consisting of $n$ nodes. Every n...

Codeforces 1088D - Ehab and another another xor problem 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/D 题目 This is an interactive problem! Ehab plays a game wi...

Codeforces 1088C - Ehab and a 2-operation task 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/C 题目 You’re given an array $a$ of length $n$. You can perform the f...

Codeforces 1088B - Ehab and subtraction 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/B 题目 You’re given an array $a$. You should repeat the following operation ...

Codeforces 1088A - Ehab and another construction problem 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1088/problem/A 题目 Given an integer $x$, find 2 integers $a$ and $b$ su...

BZOJ 4832 - 抵制克苏恩 - 动态规划 题解链接 https://lucien.ink 题目链接 https://www.lydsy.com/JudgeOnline/problem.php?id=4832 题目 小Q同学现在沉迷炉石传说不能自拔。他发现一张名为克苏恩的牌很不公平。如果你不玩炉石传说，不必担心，小Q同学会告诉你所有相关的细节。炉石传说是这样的一个游...

Codeforces 1082A - Vasya and Book 题解链接 https://lucien.ink 题目链接 https://codeforces.com/contest/1082/problem/A 题目   Vasya is reading a e-book. The file of the book consists of $n$ pages, nu...