AtCoder Beginner Contest 159 A - The Number of Even Pairs B - String Palindrome C - Maximum Volume D - Banned K E - Dividing Chocolate F - Knapsack for All Segments AtCoder Beginner Contest 159 A - The Number of Even Pairs 略。 #include<bits/stdc++.h>#definell long long#definerep(...
这次的题目挺简单的awa A cpp #include<bits/stdc++.h>usingnamespacestd;intmain(){inta, b; cin>>a>>b;cout<<a*(a-1)/2+b*(b-1)/2;return0;} B cpp #include<bits/stdc++.h>usingnamespacestd;boolok(string s){string t=s;reverse(s.begin(), s.end());returnt==s;}intmain(){st...
AtCoder Beginner Contest 254 A~E 题解 待更…… ABC254 A~E [A - Last Two Digits](https://atcoder.jp/contests/abc254/tasks/abc254_a) 题目大意 输入格式 输出格式 样例 分析 代码 [B - Practical Computing](https://atcoder.jp/contests/abc254/tasks/abc254......
AtCoder Beginner Contest 159 (E,F(dp)) E - Dividing Chocolate 题意:给你h长,w宽矩阵 的黑白巧克力,1代表是白色,0是黑色 每次可以行切一刀,列切一刀,一切就要切到底的那种 问最多切多少刀,使得每一块巧克力中白色的数量小于等于k个 做法:经典做法了,最近牛客就遇到了两次,由于n特别小,那么对行进行暴力...
Now iterate through map and calculate sum of number of ways of choosing 2 balls for each numberfor(auto i:m) total_count+=((i.second)(i.second-1))/2 Now all you need to do is to go through the array one more time and print...
We will hold AtCoder Beginner Contest 159. Contest URL: https://atcoder.jp/contests/abc159 Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20200322T2100&p1=248 Duration: 100 minutes Number of Tasks: 6 Writer: DEGwer, kyopro_friends, latte0119, namonakiacc, sata...
·AtCoder Beginner Contest (ABC) 这是最频繁且最简单的入门赛,通常情况下每月至少举行2次。2019年4月27日(含)之前,每场比赛共4题,时长100分钟,满分1000分且Rating超过1199的选手不计Rating值。自2019年5月19日起改版升级为6道题目,时长不变,满分2100分且Rating值超过1999的选手不计Rating值。改版之后比赛质量...
G - Mediator(启发式合并 + lca) A - Past ABCs #include<bits/stdc++.h>usingnamespacestd;voidsolve(){strings;cin>>s;if(s[3]>='4'||s.substr(3)=="316"||s.substr(3)=="000"||(s[3]=='3'&&s[4]>='5'))cout<<"No\n";elsecout<<"Yes\n";}intmain(){ios::sync_with_stdio...
判断图中存在闭环的常用方法——以Atcoder Beginner Contest 285(D - Change Usernames)为例 656 2 24:27 App AtCoder Beginner Contest 370(A ~ F 题讲解) 472 1 06:29 App AtCoder Beginner Contest 354(G 题讲解) 466 1 47:47 App AtCoder Beginner Contest 388(A ~ G 题讲解) 502 0 22:37 ...
AtCoder Beginner Contest 359 A~F https://www.bilibili.com/video/BV1G4gveBENB/ AtCoder Beginner Contest 359 | 完成度 [6 / 7] https://www.bilibili.com/video/BV1kS411A7M3/ AtCoder Beginner Contest 359 A 至 G 題讲解 by dreamoon https://www.bilibili.com/video/BV1x1421r7gH/ AtCoder...