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全部文章（共93篇）

势能线段树

The 2021 ICPC Asia Regionals Online Contest (II)，PTA #include <bits/stdc++.h> //#define endl '\n' #define lose {printf("NO\n");return...

2021-09-30

0 276

题解 | #Commemorative Race#

J题题解（ICPC Mid-Central USA Region 2019）题意请你统计所有满足m个约束的、长度为n的01序列的方案数。约束会以如下形式给出：（1）l,r,"same"表示要求从下标l到下标r的01序列的值完全相同（全为0或全为1）；（2）l,r,"...

2021-08-20

2 523

最小表示法

字符串最小表示法 int getPos(string s,int op)//zero represent the least representation, while one represent the largest { int i=0,j=1; int len=s.size...

字符串

2021-01-19

0 214

java语法记录

字符操作 import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; public class hello3 { public static void main(String[] ar...

2020-12-02

0 288

priority_queue custom compare(cmp)

#include <bits/stdc++.h> //#define endl '\n' #define lose {printf("NO\n");return;} #define win {printf("YES\n");return;} #de...

2020-10-22

0 355

计算几何template

//template const double eps=1e-7; const double pi=3.14159265; struct Point { double x, y; Point( double x = 0, double y = 0 ):x(x), y(y) { } ...

计算几何

2020-10-10

0 273

yet another supernova?

https://xlint101-github-io.vercel.app/

2020-10-03

0 271

矩阵快速幂

//https://nanti.jisuanke.com/t/A2022 #include <bits/stdc++.h> //#define endl '\n' #define lose {printf("NO\n");return;} #define win {p...

数学

2020-09-28

0 320

SG函数博弈模板

#include <stdio.h> #include <cstring> #define lose {printf("NO\n");return;} #define win {printf("YES\n");return;} #def...

博弈

2020-09-27

0 291

c++ techniques

struct myComp { bool operator() (const int &a, const int &b) { if (ac[a]<ac[b]) return a; else if (ac[a]==ac[b]&&pen[a]>=p...

2020-09-26

0 289