D. Irreducible Anagrams time limit per test seconds memory limit per test megabytes Let s call two strings s and t anagrams of each other if it is possible to rearrange symbols in the string s to get ...
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D. 1-2-K Game time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Alice and Bob play a game. ...
Codeforces Round #616 (Div. 2)解題報告 A. Even But Not Even 找兩個奇數就行了。 B. Array Sharpening 貪心+構造。 就從0開始往上走，看看最遠能走到哪，看代碼。 C. Mind Control 這道題題意 ...
D. Nezzar and Board https://codeforces.com/contest/1478/problem/D 題解 題意為給出一個序列xi，你可以任意挑選兩個數x，y將2·x-y加入序列中，詢問在是否可以在序列中發現數k。 假設我們任意挑選4個數：x，y，p，q ...
題意：一個n個數碼位的分數板，每一個數碼位都是一個七段數碼管，現在給出每個數碼位的顯示情況，問再點亮k段數碼管的話能顯示的最大的數是多少，如果不能構成一串數字，就輸出-1. 答案允許有前導0，但是有前導0的時候答案長度必須要跟n一致 原題鏈接：https://codeforces ...
E. Prefix Enlightenment time limit per test3 seconds memory limit per test256 megabytes There are ...
的，那么它的前面都是滿足單調升的。從后往前找第一個不滿足a[i]>=n-i的，那么它的后面都是滿足單調減的。如 ...
D. Yet Another Monster Killing Problem You play a computer game. In this game, you lead a party of 𝑚 heroes, and you have to clear a dungeon ...
D. Secret Passwords One unknown hacker wants to get the admin's password of AtForces testing system, to get problems from the next contest. ...
