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题解 | 【模板】最近公共祖先（LCA）

#include<bits/stdc++.h> using namespace std; const int N = 5e5 + 5; int n, m, r; int fa[N][20], d[N]; vector<int> e[N]; inline void b...

2026-05-13

0 24

题解 | 小红的矩阵染色

#include<bits/stdc++.h> using namespace std; int main() { int n, m, k; cin>>n>>m>>k; vector<vector<char>...

2026-05-07

0 26

题解 | Poi 的新加法（Easy Version）

#include<bits/stdc++.h> using namespace std; typedef long long LL; const int N = 1e6 + 5; int T; int n, q; LL a[N]; inline void solve(){ ...

2026-04-26

0 30

题解 | 小苯的01背包（easy）

#include<bits/stdc++.h> using namespace std; const int N = 2e3 + 5; int n, k; int v[N], w[N]; int f[N]; bool vis[N][N]; vector<int> V...

2026-04-25

0 35

题解 | 最大稳定数值

#include<bits/stdc++.h> using namespace std; typedef long long LL; const int N = 1e5 + 5; int n; int a[N]; LL prefix[N]; bool is_support[N], ...

2026-04-22

0 40

题解 | 穷哈哈~

import java.util.Scanner; public class Main{ static Scanner in = new Scanner(System.in); public static void main(String[] args){ int ...

2026-04-20

0 33

题解 | 小红的完全二叉树构造

import java.util.*; public class Main{ static Scanner in = new Scanner(System.in); public static void main(String[] args){ int n = in...

2026-04-19

0 35

题解 | 分元宵

import java.util.Scanner; public class Main{ static Scanner in = new Scanner(System.in); static long mod; public static long qpower(long...

2026-04-17

0 31

题解 | 数独数组

import java.util.Scanner; public class Main{ static Scanner in = new Scanner(System.in); public static void main(String[] args){ int ...

2026-04-15

0 46

题解 | 元素方碑

import java.util.Scanner; public class Main{ static Scanner in = new Scanner(System.in); public static void solve(){ int n = in.ne...

2026-04-13

0 43