2096A Wonderful Sticks constructive algorithms, greedy 800 x17342 2095J Premiere at a Wrong Time *special problem x394 2095I Mysterious Script *special problem, expression parsing, number theory x563 2095H Blurry Vision *special problem, fft, math x658 ...
Codeforces Round 921 (Div. 2)【题解A-C】 ACM气氛组组长 iq++ 1 人赞同了该文章 目录 收起 A. We Got Everything Covered! 思路 代码实现 B. A Balanced Problemset? 思路 代码实现 C. Did We Get Everything Covered? 思路 代码实现 ...
Multiset is a set, where equal elements are allowed. Input The first line of the input contains a single integer q (1 ≤ q ≤ 200 000)— the number of queries Vasiliy has to perform. Each of the following q lines of the input contains one of three characters '+', '-'...
1237A - Balanced Rating Changes - Accepted 1237B - Balanced Tunnel - Accepted 1237C1 - Balanced Removals (Easier) - Accepted 1237C2 - Balanced Removals (Harder) - Wrong answer Educational Codeforces Round 72 - 0/6 1217A - Creating a Character - Accepted 1217B - Zmei Gorynich - Accepted 12...
1458 A - Dora's Set C++17 (GCC 7-32) greedy math number theory *800 Aug/30/2024 20:59 1457 D1 - Turtle and a MEX Problem (Easy Version) C++17 (GCC 7-32) greedy math *1500 Aug/25/2024 22:02 1456 C - Turtle and Good Pairs C++17 (GCC 7-32) constructive algorithms greedy ...
B. A Perfectly Balanced String? 结论:找到最小不含重复出现的子串,然后要求之后的字符也满足该子串的排列顺序,但不要求完整 举例:aba 最小不重复子串为 ab 之后重新周期出现a 故yes;abcba abc 第四个位置应该是a而不是b,故no 技巧: 用set来代替map统计“共有多少个不同元素”更合适 set 主要用于实现“...
Balanced Ternary String CodeForces - 1102D (贪心+思维) You are given a stringss consisting of exactlynn characters, and each character is either '0', '1' or '2'. Such strings are calledternary strings. Your task is toreplace minimum number of characters in this string with other ...
Balanced Ternary String CodeForces - 1102D (贪心+思维) You are given a string ss consisting of exactly nn characters, and each character is either '0', '1' or '2'. Such strings are called ternary strings. Your task is to replace minimum number of characters in this string with other ...
题目:Codeforces 1343B - Balanced Array https://codeforces.com/problemset/problem/1343/B 翻译 给一个数字 n,保证数字 n 是偶数。 需要构造一个长度为 n 的数列 a,并有如下要求: 前n/2 个元素要求是偶数 后n/2 个 元素要求是奇数 a 内的所有元素要求不同并且是正数 ...
Problem Description: Recently Vasya decided to improve his pistol shooting skills. Today his coach offered him the following exercise. He placed n cans in a row on a table. Cans are numbered from left to right from 1 to n. Vasya has to knock down each can exactly once to finish the exe...