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RSS订阅原创 Educational Codeforces Round 111 EditorialA-C题解
Educational Codeforces Round 111 Editorial1550A - Find The Array思路：取n个数和最大情况为1，3，5，…，和为n²，那么对于（n-1）²-n²的数x，前n-1个取最大，最后一个取x-（n-1）²，实际上会发现最后一个数是在前面的范围内+1或者+2得到也就是说合法的，故只要判断哪个n²比和大就行了代码#include <bits/stdc++.h>#define maxn 105using namespace std;i
2021-07-16 20:12:45
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原创 Codeforces Round #714(Div.2)A-C
Codeforces Round #714(Div.2)A-C补题A. Array and PeaksA sequence of n integers is called a permutation if it contains all integers from 1 to n exactly once.Given two integers n and k, construct a permutation a of numbers from 1 to n which has exactly k pea
2021-04-12 14:07:06
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原创 CF156B - Suspects
CF156B - Suspects(枚举)As Sherlock Holmes was investigating a crime, he identified n suspects. He knows for sure that exactly one of them committed the crime. To find out which one did it, the detective lines up the suspects and numbered them from 1 to n. A
2021-03-25 13:41:41
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原创 Maximum Value
Maximum Value（枚举剪枝+二分）You are given a sequence a consisting of n integers. Find the maximum possible value of (integer remainder of ai divided by aj), where 1 ≤ i, j ≤ n and ai ≥ aj.InputThe first line contains integer n — the length of the sequence (1
2021-03-14 22:55:03
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原创 A - Mike and Children
A - Mike and Children（枚举）Mike decided to teach programming to children in an elementary school. He knows that it is not an easy task to interest children in that age to code. That is why he decided to give each child two sweets.Mike has n sweets with siz
2021-03-14 18:34:20
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原创 2021-03-14
Codeforces Round #707 Div.2补题A.Alexey and Train这题就从前往后模拟就行了#include <cstdio>#include <iostream>#include <cstring>#include <vector>#include <algorithm>#include <iomanip>using namespace std;int a[105],b[105],tme[
2021-03-14 13:58:00
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原创 2021-01-28
Best Cow Line（头尾比较字典序）Time Limit: 1000MS Memory Limit: 65536KTotal Submissions: 53473 Accepted: 13477DescriptionFJ is about to take his N (1 ≤ N ≤ 2,000) cows to the annual"Farmer of the Year" competition. In this contest every farmer arranges his co
2021-01-28 17:20:48
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原创 练习题2
Cubes SortingFor god’s sake, you’re boxes with legs! It is literally your only purpose! Walking onto buttons! How can you not do the one thing you were designed for?Oh, that’s funny, is it? Oh it’s funny? Because we’ve been at this for twelve hours and y
2020-10-25 17:49:19
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原创 练习题1
Copy-paste— Hey folks, how do you like this problem?— That’ll do it.BThero is a powerful magician. He has got n piles of candies, the i-th pile initially contains ai candies. BThero can cast a copy-paste spell as follows:He chooses two piles (i,j) such
2020-10-25 16:03:55
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