随笔分类 - 刷题笔记: CF
摘要：A new e-mail service "Berlandesk" is going to be opened in Berland in the near future. The site administration wants to launch their project as soon a
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摘要：Xenia lives in a city that has n houses built along the main ringroad. The ringroad houses are numbered 1 through n in the clockwise order. The ringro
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摘要：题目链接 Polycarpus has a ribbon, its length is n. He wants to cut the ribbon in a way that fulfils the following two conditions: After the cutting each r
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摘要：Codeforces Round #656 (Div. 3)题解 A.Three Pairwise Maximums 解题思路： 依照题意和样例，三个整数x,y,z必须有两个相同且都比第三个数大。 如果x==y则说明a为最大值，此时需要满足a>=z，如果不满足该条件，则无解，因为z=max(b，c)
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摘要：https://codeforces.com/problemset/problem/489/C C. Given Length and Sum of Digits... You have a positive integer m and a non-negative integer s. Your
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摘要：A. 每组给一个和个数（），每次操作可以给一个加2，求是否能使n个数相等 4 3 1 1 3 4 1 1 2 1 2 11 11 1 100 YES NO YES YES 直接扫一遍，记录最大值与当前的差是否能被2整除。 #include<bits/stdc++.h> using namespace
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摘要：解题思路 题目说的意思是，给一个2n个数的数组，注意n为奇数，将这个数组平均分为2份，假设为c1和c2。 c1和c2是奇数个元素的数组，比如数组[1,2,3]，那么中位数就是2。 那么如何求得中位数差值最小的两个数组呢？ 对于数组[1, 2, 3, 4, 5, 6]，显然只要一个数组的中位数是3，另
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摘要：题意：不同奶茶店里同样的奶茶价格不同，问在当天Yuki持有的零钱能在几家店购买 思路：对价格数组排序，先优先判断是否会比较最大值和最小值，然后二分查找 #include<bits/stdc++.h> using namespace std; int main() { int n, q, m, a[1
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摘要：A Ministry for Defense sent a general to inspect the Super Secret Military Squad under the command of the Colonel SuperDuper. Having learned the news,
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摘要：记第一场CF赛，完成3道题 代码更新（降低时间复杂度和修改写法）：21.1.23 A题 Required Remainder 题意：给你 x、y、n 求最大的k (k<=n) 使得k%x==y **做法：模拟 ** 寻找最大整除数，一开始while循环找，直接TLE2 #include<bits/s
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摘要：https://codeforces.com/contest/1360/problem/C We call two numbers xx and yy similar if they have the same parity (the same remainder when divided by 2
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摘要：7 4 2 4 1 4 3 4 统计技能种类数量 4种不同技能 统计同一技能最大数量 技能1(数量1) 技能2(数量1) 技能3(数量1) 技能4(数量4) 选出 技能4(数量4) 作为 第2组 扣除技能4，还有4-1=3种不同技能 作为 第1组 发现，第2组数量4,第1组数量3 输出结果为3 5
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摘要：There is a game called "I Wanna Be the Guy", consisting of n levels. Little X and his friend Little Y are addicted to the game. Each of them wants to
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摘要：Vasya works as a DJ in the best Berland nightclub, and he often uses dubstep music in his performance. Recently, he has decided to take a couple of ol
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摘要：The end of the school year is near and Ms. Manana, the teacher, will soon have to say goodbye to a yet another class. She decided to prepare a goodbye
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摘要：Being a nonconformist, Volodya is displeased with the current state of things, particularly with the order of natural numbers (natural number is posit
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摘要：原题链接 ╮(╯▽╰)╭这题题目一开始没看明白，导致wa几次。如果全是大写或者出了首字母是小写其他为大写，则转换为第一个字母大写，其他的小写 ，如果不是以上两种情况则不作处理。 ╮(╯▽╰)╭水题还错。 #include<bits/stdc++.h> using namespace std; int
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摘要：1. 4A.Watermelon **题目链接：**https // s.com/problemset/problem/4/A **题意：**两人分瓜，但每一部分都得是偶数 **分析：**直接 对2取余，且 w != 2 #include<bits/stdc++.h> using namespace
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摘要：A. Watermelon time limit per test 1 second memory limit per test 64 megabytes input standard input output standard output One hot summer day Pete and
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