Perfect
[CF980D] Perfect Groups 题解
[CF980D] Perfect Groups 题解 思路 第一个观察就很难观察到: \[ab = x^2, bc = y^2\Longrightarrow \exist z, ac = z^2(a, b, c \ne 0) \] 证明: 两个条件式相乘得到: \[ab^2c = x^2y^2\\ ......
[CF1603E] A Perfect Problem
A Perfect Problem 题面翻译 一个序列是好的当且仅当集合最大值乘上集合最小值大于等于集合元素的加和; 一个序列是完美的,当且仅当这个序列的任何子序列都是好的(包括自己不包括空集); 你要求的是:长度为 \(n\) 的并且每一个元素都大于等于 \(1\) 并且小于等于 \(n+1\) ......
ICPC2022Xian G Perfect Word 题解
Link ICPC2022Xian G Perfect Word Question 给出 \(n\) 个串,我们称 \(t\) 串是 "good" 当且仅当 \(t\) 的所有子串都在 \(n\) 个串中出现过 问最长的 "good" 的串的长度 Solution 由于所有串的子串个数为 \(L\t ......
PAT_A 1085 Perfect Sequence
Given a sequence of positive integers and another positive integer p. The sequence is said to be a perfect sequence if M≤m×p where M and m are the max ......
Unity完美像素Sprite:怎么让图片变得清晰(转载) Unity Pixel Perfect Sprite: How To Achieve Crispy And Sharp Images
https://gamedevelopertips.com/unity-pixel-perfect-sprite/ So I was making a little prototype for my new game when I just came across a little problem. ......
【题解】1st ucup Stage 20: India G - Perfect Strings
考虑卡特兰数 \(C_n = \sum_{i=0}^{n-1}C_iC_{n-1-i}\),故有递推式 \[C = xC^2 +1 \]解出卡特兰数递推式: \[C = \frac{1 - \sqrt{1 - 4x}}{2x} \]考虑本题的递推式: \[F_n = \sum_{i=0}^{n-1} ......
Why Kiki's Delivery Service Is The Perfect Coming of Age Story
# Why Kiki's Delivery Service Is The Perfect Coming of Age Story Studio Ghibli is well known for producing timeless classics that have engaging protag ......
Codeforces Global Round 24 B. Doremy's Perfect Math Class
给一个元素个数为 $n$ 的正整数集合 $S$ ,可以做以下操作任意次: * 选择 $S$ 中的两个元素 $x$ $y$ 满足 $x > y$ 且 $x - y$ 不在集合内。 * 加入 $x - y$ 到集合。 经过若干次操作后,集合中最多能存在多少元素。 性质一:两个数 $x$ $y$ 辗转相减 ......
[LeetCode][279]perfect-squares
# Content Given an integer n, return the least number of perfect square numbers that sum to n. A perfect square is an integer that is the square of an ......
1085 Perfect Sequence(附测试点5分析)
题目: Given a sequence of positive integers and another positive integer p. The sequence is said to be a perfect sequence if M≤m×p where M and m are the ......
题解 CF1764G Doremy's Perfect DS Class (Extra)
题解 CF1764G Doremy's Perfect DS Class (Extra) 题意 交互库有一个 $1\sim n$ 的排列 $p$,你每次可以想交互库给定三个整数 $l,r,k(1\le l\le r\le n,1\le k\le n)$,交互库会返回 $\lfloor p_l/k\r ......