· AtCoder Beginner Contest 260 D E F · AtCoder Beginner Contest 275 A-F 题解 · AtCoder Beginner Contest 275(B,C,D,E,F) · AtCoder Beginner Contest 271 阅读排行: · 使用TypeScript开发微信小程序(云开发)-入门篇 · 没几个人需要了解的JDK知识,我却花了3天时间研究 · C#高...
B - ABC-DEFatcoder.jp/contests/abc275/tasks/abc275_b 问a∗b∗c−d∗e∗f对998244353取模后的值。 注意下取模出来的值别是负数就好,不过py的余数正负号是跟除数来的,所以没这个问题。 0≤a,b,c,d,e,f≤1018a∗b∗c>d∗e∗f mod=998244353defsolve():nums=LII()foriinrang...
#include<cstdio>#include<algorithm>usingnamespacestd;#definell long longintn, m, ans;chars[15][15];boolcheck(intx,inty){if(x <=9&& x >0&& y >0&& y <=9&& s[x][y] =='#')return1;return0; }intmain(){for(inti =1; i <=9; i ++) {scanf("%s", s[i] +1); }for(i...
AtCoder Beginner Contest 399(C-F详细题解) C 思路:作为一个简单无向图,有 n 个点只能有 n-1 条边,那我们只需要统计不同连通图上的点计算出所需的边即可,最后就是总边数减去所需的边即可。 代码:vector<vector<int>>… 秋日薄雾 AtCoder Beginner Contest 400 A-F LHao打开...
AtCoder Beginner Contest 269(E-EX) https://www.bilibili.com/opus/707445585544740886 AtCoder Beginner Contest 269 题解 A - E https://zhuanlan.zhihu.com/p/565544755 AtCoder Beginner Contest 269 (A-F)题解 https://www.cnblogs.com/ycllz/p/16704061.html ...
Aising Programming Contest 2022(AtCoder Beginner Contest 255)实况 https://www.bilibili.com/video/BV1mY411K7PJ/ https://www.bilibili.com/video/BV1W3411g79S/ Aising Programming Contest 2022(AtCoder Beginner Contest 255)现场实况 https://www.bilibili.com/video/BV1Ba411L736/ ...
AtCoder Beginner Contest 169(题解)E - Count Median结论题给定nnn个xi∈[ai,bi]x_i\in[a_i,b_i]xi∈[ai,bi],求中位数的个数。定义:k=⌊n2⌋k=\lfloor\dfrac{n}{2}\rfloork=⌊2n⌋,对a,ba,ba,b进行排序后,为ak+1a_{k+1}ak+1为aia_iai的中位数,bk+1...
AtCoder Beginner Contest 193 部分题解 E - Oversleeping 求是否存在\(t\)满足\(t=t_1(mod (2X+2Y)) and t=t_2(mod (P+Q))\) 注意到\(Q\)和\(Y\)非常小,直接枚举套个\(exCRT\)就行了(虽然赛场上没看出来,\(exCRT\)也忘了记得快速乘...
AtCoder Beginner Contest 215 G - Colorful Candies 2 AtCoder Beginner Contest 215 G - Colorful Candies 2 有n个糖果,每个糖果有着一个颜色a[i],每次拿k个糖果期望拿到E(x)个不同颜色的糖果,求出k从1~n分别得到的E(x)。最终答案mod998244353。 数据范围n <= 5e4 看到这个问题首先反应是答案和颜色...
We will hold AtCoder Beginner Contest 167. Contest URL: https://atcoder.jp/contests/abc167 Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20200510T2100&p1=248 Duration: 100 minutes Number of Tasks: 6 Writer: gazelle, kort0n, kyopro_friends, potetisensei, she...