D - Fennec VS. Snuke Time limit : 2sec / Memory limit : 256MB Score : 400 points Problem Statement Fennec and Snuke are playing a board game. On the board, there are N cells numbered 1 through N, and N−1 roads, each connecting two cells. Cell ai is a…

C - Splitting Pile Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement Snuke and Raccoon have a heap of N cards. The i-th card from the top has the integer ai written on it. They will share these cards. First, Snuke will tak…

A - Happy Birthday! Time limit : 2sec / Memory limit : 1000MB Score: 100 points Problem Statement E869120's and square1001's 16-th birthday is coming soon.Takahashi from AtCoder Kingdom gave them a round cake cut into 16 equal fan-shaped pieces. E869…

A - ABC/ARC Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement Smeke has decided to participate in AtCoder Beginner Contest (ABC) if his current rating is less than 1200, and participate in AtCoder Regular Contest (ARC) oth…

A - ABCxxx Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement This contest, AtCoder Beginner Contest, is abbreviated as ABC. When we refer to a specific round of ABC, a three-digit number is appended after ABC. For example,…

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…

没看到Beginner,然后就做啊做,发现A,B太简单了...然后想想做完算了..没想到C卡了一下,然后还是做出来了.D的话瞎想了一下,然后感觉也没问题.假装all kill.2333 AtCoder Beginner Contest 052 A题意: 输出大的面积? 思路: max(A*B,C*D); AtCoder Beginner Contest 052 B题意: 枚举过程,然后...太水了.. AtCoder Beginner Contest 052 C题意: 输出N!的因子个数mod1…

AtCoder Beginner Contest 136 题目链接 A - +-x 直接取\(max\)即可. Code #include <bits/stdc++.h> using namespace std; typedef long long ll; const int N = 2e5 + 5; int main() { ios::sync_with_stdio(false); cin.tie(0); int a, b; cin >> a >> b; cout &…

AtCoder Beginner Contest 137 F 数论鬼题(虽然不算特别数论) 希望你在浏览这篇题解前已经知道了费马小定理 利用用费马小定理构造函数\(g(x)=(x-i)^{P-1}\) \[x=i,g(x)=0\] \[x\ne i ,g(x)=1\] 则我们可以构造 \[f(x)=\sum^{i=0}_{P-1}(-a_i*(x-i)^{P-1}+a_i)\] 对于第\(i\)条式子当且仅当\(a_i=1 \ and \ x=i\)时取到\(1\) 代码写的比较奇怪 const…