Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement You are given a string S consisting of digits between 1 and 9, inclusive. You can insert the letter + into some of the positions (possibly none) between two letters in this…

Time limit : 2sec / Memory limit : 256MB Score : 200 points Problem Statement Alice, Bob and Charlie are playing Card Game for Three, as below: At first, each of the three players has a deck consisting of some number of cards. Each card has a letter …

人生第一场 AtCoder,纪念一下 话说年后的 AtCoder 比赛怎么这么少啊(大雾 AtCoder Beginner Contest 154 题解 A - Remaining Balls We have A balls with the string S written on each of them and B balls with the string T written on each of them. From these balls, Takahashi chooses one…

目录 AtCoder Beginner Contest 153 题解 A - Serval vs Monster 题意 做法 程序 B - Common Raccoon vs Monster 题意 做法 程序 C - Fennec vs Monster 做法 程序 D - Caracal vs Monster 做法 程序 E - Crested Ibis vs Monster 做法 程序 F - Silver Fox vs Monster 做法 程序 感谢 AtCoder Beginner Co…

AtCoder Beginner Contest 177 题解 目录 AtCoder Beginner Contest 177 题解 A - Don't be late B - Substring C - Sum of product of pairs D - Friends E - Coprime F - I hate Shortest Path Problem A - Don't be late 问你能不能在时间\(T\)内用不高于\(S\)的速度走过\(D\)的路程,转化为判断\(ST\)…

小兔的话 欢迎大家在评论区留言哦~ AtCoder Beginner Contest 168 A - ∴ (Therefore) B - ... (Triple Dots) C - : (Colon) D - .. (Double Dots) E - ∙ (Bullet) 简单题意 小兔捕获了 \(N\) 条不同的沙丁鱼,第 \(i\) 条沙丁鱼的 美味程度 和 香味程度 分别是 \(A_i\) 和 \(B_i\) 她想在这些沙丁鱼中选择 一条 或者 多条 放入冷冻箱:但是必须保证沙丁鱼的选择是…

AtCoder Beginner Contest 224 A - Tires 思路分析: 判断最后一个字符即可. 代码如下: #include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); string s; cin >> s; string temp; if (s[s.size() - 1] == 'r') { cout <…

KYOCERA Programming Contest 2021(AtCoder Beginner Contest 200) 题解 哦淦我已经菜到被ABC吊打了. A - Century 首先把当前年份减去\(1\),对应的世纪也减去\(1\),然后我们就发现第\(0\)到\(99\)年对应第\(0\)世纪,第\(100\)到\(199\)年对应第\(1\)世纪,以此类推. 答案就是\(\lfloor \frac {N-1} {100} \rfloor\).这里\(\lfloor x \rflo…

AtCoder Beginner Contest 184 题解 目录 AtCoder Beginner Contest 184 题解 A - Determinant B - Quizzes C - Super Ryuma D - increment of coins E - Third Avenue F - Programming Contest 这把怎么感觉题目都比以往的ABC水啊,拜此所赐我只是程序写得慢就排名狂掉( A - Determinant 求二阶矩阵的行列式,是小学常见自定义题目(…

AtCoder Beginner Contest 173 题解 目录 AtCoder Beginner Contest 173 题解 A - Payment B - Judge Status Summary C - H and V D - Chat in a Circle E - Multiplication 4 F - Intervals on Tree A - Payment 首先我们可以把所有不用找零的部分都付掉,这样就只剩下了\(A \mod 1000\)这样一个"\(A\)除以\(10…