Replace A Time limit: 1000 msMemory limit: 256 MB   You are given a string SS containing only letters A or B. You can take any two adjacent As and replace them by a single A. You perform operations as long as possible. Print the final string. Standar…

数学 1001 KK's Steel 类似斐波那契求和 #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> #include <string> #include <vector> #include <map> #include <queue> typedef long long ll; const int N =…

KK's Point Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 644    Accepted Submission(s): 220 Problem Description Our lovely KK has a difficult mathematical problem:He points N(2≤N≤105) points o…

KK's Steel Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 350    Accepted Submission(s): 166 Problem Description Our lovely KK has a difficult mathematical problem:he has a N(1≤N≤1018) meters s…

总结 手速场...像我这种没手速的就直接炸了... 辣鸡 E 题交互,少打了个 ? 调了半个小时... 到最后没时间 G 题题都没看就结束了...结果早上起来被告知是阿狸的打字机...看了看题一毛一样... 提供翻译造福人类... A. There Are Two Types Of Burgers Description 题库链接 你有 \(b\) 片面包,\(p\) 块牛肉,\(f\) 块鸡肉.两片面包和一块肉可以组成一个汉堡,两种汉堡的价钱分别是 \(h,c\).求最大收益.\(t\) 组询…

Educational Codeforces Round 71 (Rated for Div. 2)-F. Remainder Problem-技巧分块 [Problem Description] ​ 初始\([1,500000]\)都为0,后续有两种操作: ​ \(1\).将\(a[x]\)的值加上\(y\). ​ \(2\).求所有满足\(i\ mod\ x=y\)的\(a[i]\)的和. [Solution] ​ 具体做法就是,对于前\(\sqrt{500000}=708\)个数,定义\(…

Educational Codeforces Round 71 (Rated for Div. 2)-E. XOR Guessing-交互题 [Problem Description] ​ 总共两次询问,每次询问给出\(100\)个不同的数,评测系统对于每次询问,随机从\(100\)个数中选择一个数\(a\),返回\(x\oplus a\).让你通过两次返回的值猜出\(x\)值是多少.要求两次询问的\(200\)个数互不相同,且题目保证\(x\)值固定不变. [Solution] ​ 题目要求所…

Rikka with Phi  Accepts: 5  Submissions: 66  Time Limit: 16000/8000 MS (Java/Others)  Memory Limit: 131072/131072 K (Java/Others) Problem Description Rikka and Yuta are interested in Phi function (which is known as Euler's totient function). Yuta giv…

Codeforces Beta Round #65 (Div. 2) http://codeforces.com/contest/71 A #include<bits/stdc++.h> using namespace std; #define lson l,mid,rt<<1 #define rson mid+1,r,rt<<1|1 #define sqr(x) ((x)*(x)) #define pb push_back #define eb emplace_bac…

BestCoder Round #64 (div.2) Array 问题描述 Vicky是个热爱数学的魔法师,拥有复制创造的能力. 一开始他拥有一个数列{1}.每过一天,他将他当天的数列复制一遍,放在数列尾,并在两个数列间用0隔开.Vicky想做些改变,于是他将当天新产生的所有数字(包括0)全加1.Vicky现在想考考你,经过100天后,这个数列的前M项和是多少?. 输入描述 输入有多组数据. 第一行包含一个整数T,表示数据组数.T. \left( 1 \leq T \leq 2 * {10}^…