codeforces corollary 1364d ehab

Codeforces Round 886 (Div. 4) D - H

D. Balanced Round E. Cardboard for Pictures F. We Were Both Children G. The Morning Star H. The Third Letter ......
Codeforces Round 886 Div

Codeforces Round 887 (Div. 2) D.Imbalanced Arrays

Problem - D - Codeforces 题目规定了一种“平衡数组”,数组中的任意一个数绝对值小于等于n且不等于零,任意两个数的和不为0,给n个数a[i],分别表示位于i的数可以与a[i]个数(包括它自己)相加为正。 现在给出n和a数组,要求构造平衡数组,不能构造的话输出-1 我们不难得出以 ......
Codeforces Imbalanced Arrays Round 887

Educational Codeforces Round 35 (Rated for Div. 2)

# Educational Codeforces Round 35 (Rated for Div. 2) https://codeforces.com/contest/911 ## A. Nearest Minimums ```CC #include using namespace std; con ......
Educational Codeforces Round Rated Div

CodeForces 725F Family Photos

[洛谷传送门](https://www.luogu.com.cn/problem/CF725F "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/725/F "CF 传送门") 不错的贪心题。 我们考虑一对照片只有一张的情况。那么 ......
CodeForces Family Photos 725F 725

Educational Codeforces Round 71 (Rated for Div. 2)

Educational Codeforces Round 71 (Rated for Div. 2) A - There Are Two Types Of Burgers 思路:价格高的优先取 #include<bits/stdc++.h> using namespace std; #define ......
Educational Codeforces Round Rated Div

Codeforces Round 887 (Div. 2) A-D

# Codeforces Round 887 (Div. 2) ## A. Desorting 题意:给出一个数组,可以进行任意次以下操作: 选择一个i 对于数组中的a[1],a[2],...,a[i]全部+1 a[i+1]...a[n]全部-1, 问最小使得数组变得无序的操作是多少次 ### So ......
Codeforces Round 887 A-D Div

题解 Codeforces Round 887 (Div 1+Div 2) / CF1853AB,CF1852ABCD

下大分!悲!Div 1 只过了 1A!!! 但还是补完整场 Div 2 吧。 # A. Desorting ## problem 用操作:$[1,i]++,[i+1,n]--$,使得数组不单调不降,求最小操作次数。$n\leq 10^5$。 ## solution 操作等同于在差分数组上选出 $i$ ......
题解 Codeforces Div Round 1853

Codeforces Round #885 数学专场

妙,我只能说妙。今天补DEF发现除了F诡秘的杨辉三角,我都能独立做出来。 但为什么我感觉DE难度不如C!!!! ## [A](https://codeforces.com/problemset/problem/1848/A) 题意:一个人站在 $(x,y)$ 处,而其他人分别在 $(x_1,y_1) ......
专场 Codeforces 数学 Round 885

Codeforces Round #887 Div.2 A-E

# Codeforces Round #887 Div.2 一定要手玩哦 前言: **一定要手玩,一定要手玩!** 我今早一手玩发现C很TM简单,如果赛时我能切C说不定直接上1800.。。。 时隔多年,我的**Codeforces Rating(1718) 再次超越了 @cqbzlhy**(1674 ......
Codeforces Round 887 A-E Div

【题解】Imbalanced Arrays - Codeforces 1852B

**出处:** Codeforces Round 887 **链接:** https://codeforces.com/problemset/problem/1852/B **题目大意:** 给定一个包含 $n$ 个非负整数的频次序列 $f$ 。 构造任意一个等长的整数序列 $b$ ,要求 ① $b ......
题解 Imbalanced Codeforces Arrays 1852B

Codeforces Round 887 (Div. 2)记录

A. Desorting 如果有 $a_1 \leq a_2 \leq \ldots \leq a_{n-1} \leq a_n$,则称长度为 $n$ 的数组 $a$ 已排序。 Ntarsis 有一个长度为 $n$的数组 $a$。 他可以对数组进行一种操作(0 次或多次): - 选择一个索引 $i$ ......
Codeforces Round 887 Div

Codeforces Round 887(Div 2)(A-C)

# A. Desorting 题目里说的无序是指后面的一个数大于前面一个数,所以只要有一个 a[i+1]-a[i] using namespace std; #define int long long signed main() { ios::sync_with_stdio(false); cin. ......
Codeforces Round 887 A-C Div

Codeforces Round 886 (Div. 4)

# [Dashboard - Codeforces Round 886 (Div. 4) - Codeforces](https://codeforces.com/contest/1850) ## [A. To My Critics](https://codeforces.com/contest/1 ......
Codeforces Round 886 Div

Educational Codeforces Round 71

# A. There Are Two Types Of Burgers ```cpp #include using namespace std; #define int long long void solve() { int b, p, f, h, c; cin >> b >> p >> f>> ......
Educational Codeforces Round 71

Codeforces Round 887 (Div. 1) 题解

https://codeforces.com/contest/1852/problems # A. Ntarsis' Set https://codeforces.com/contest/1852/problem/A 感觉不是很一眼。 $n$ 和 $k$ 都是 $2 \times 10^5$,~~不 ......
题解 Codeforces Round 887 Div

【题解】Ntarsis' Set - Codeforces 1852A

**出处:** Codeforces Round 887 **链接:** https://codeforces.com/problemset/problem/1852/A **题目大意:** 给定一个包含 $n$ 个正整数的表示删除位置的严格升序序列 $p$ ,以及另外一个连续正整数的被删除的无穷序 ......
题解 Codeforces Ntarsis 1852A 1852

CodeForces 1810G The Maximum Prefix

[洛谷传送门](https://www.luogu.com.cn/problem/CF1810G "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1810/G "CF 传送门") 感觉是比较 educational 的题。 拿到 ......
CodeForces Maximum Prefix 1810G 1810

「题解」Codeforces Round 887 (Div. 2)

## A. Desorting ### Problem [题目](https://codeforces.com/problemset/problem/1853/A) ### Sol & Code 若序列一开始无序答案为 $0$ 若有序即 $a_1\leq a_2 \leq \dots \leq a_ ......
题解 Codeforces Round 887 Div

Codeforces Round 887 (Div. 2)

## C. Ntarsis' Set >​ ![image-20230724121346402](https://zeoy-typora.oss-cn-hangzhou.aliyuncs.com/image-20230724121346402.png) > >($1 \leq n,k \leq 2 ......
Codeforces Round 887 Div

Codeforces Round 887 (Div 2) C. Ntarsis' Set

Ntarsis' Set 题意是给你n个数,每次按照顺序删除位于a[i]位置的这n个数,问k次后最小的是多少 参考这位大佬的题解Codeforces Round 887 (Div 2)A~C - 知乎 (zhihu.com) 结合一个官方题解,进行一次操作后,由于前面删掉i个数,a[i]到a[i+1 ......
Codeforces Ntarsis Round 887 Div

【题解】Educational Codeforces Round 151(CF1845)

VP战报:1h 过了 A,B,C,D 然后被 E 罚坐 1h rank:210th 题解只有 A-E ## A.Forbidden Integer ### 题目描述: 你需要构造一个正整数序列,满足: 1. 对于 $i$,$a_i\le k$ 且 $a_i\not=x$。 2. $\sum a_i= ......
题解 Educational Codeforces Round 1845

Codeforces Round 886 (Div. 4) 题解 A - H

## [A](https://codeforces.com/contest/1850/problem/A). To My Critics ### 题目大意 给定三个数,你可以挑俩数加起来,问这仨数有没有可能加起来大于等于 $10$ . ### 解题思路 我们找其中最大的两个数相加与 $10$ 比较即 ......
题解 Codeforces Round 886 Div

Codeforces Round 886 (Div. 4) 全题题解

我关注的人中正式参与**比赛排名公示**: | # | Who | = | Penalty | * | [A](https://codeforces.com/contest/1850/problem/A) | [B](https://codeforces.com/contest/1850/probl ......
题解 Codeforces Round 886 Div

CodeForces 1776C Library game

[洛谷传送门](https://www.luogu.com.cn/problem/CF1776C "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1776/C "CF 传送门") orz p_b_p_b。 下文令 $a_i$ 为 ......
CodeForces Library 1776C 1776 game

Codeforces Round 886 (Div. 4)记录

A - To My Critics 代码: #include<cstdio> #include<algorithm> #include<cmath> #include<vector> #include<string.h> #include<set> #include<string> #include ......
Codeforces Round 886 Div

Codeforces Round 885 (Div. 2) A - C

# A. Vika and Her Friends [Problem - A - Codeforces](https://codeforces.com/contest/1848/problem/A) **题意:** ​ 在$n*m$的范围内,$a$和她的朋友在追逐游戏,每秒$a$和朋友必须从当前位置 ......
Codeforces Round 885 Div

Codeforces Round 886 (Div. 4)(A-H)

# A-To My Critics 读入 a,b,c 如果三个里较大的两个的和大于等于 10 输出 YES,不然输出 NO ``` #include using namespace std; void solve() { int a, b, c; cin >> a >> b >> c; cout = ......
Codeforces Round 886 A-H Div

Codeforces Round 886 (Div. 4)补题

# [Codeforces Round 886 (Div. 4)](https://codeforces.com/contest/1850) ## A~D: ```c++ //A: bool solve(){ cin>>a[1]>>a[2]>>a[3]; sort(a+1,a+4); return ......
Codeforces Round 886 Div

Codeforces Round 886 (Div. 4)

## F. We Were Both Children >![image-20230722103513062](https://zeoy-typora.oss-cn-hangzhou.aliyuncs.com/image-20230722103513062.png) ### 题解:约数 >* 我们先 ......
Codeforces Round 886 Div

Codeforces Round 886 (Div. 4)

Codeforces Round 886 (Div. 4) A - To My Critics 思路:最大的两个数的和大于等于10则YES #include<bits/stdc++.h> using namespace std; #define int long long typedef pair< ......
Codeforces Round 886 Div