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题解 | 1=N

#include <bits/stdc++.h> using namespace std; using ll=long long; void solve() { ll n;cin>>n; vector<ll> yin_shu; for(ll...

2025-09-12

0 10

题解 | 字符串哈希

#include <bits/stdc++.h> using namespace std; int main() { int n;cin>>n; unordered_map<string,int> mp; while(n--) {...

2025-08-27

1 26

题解 | 判断一个链表是否为回文结构

/** * struct ListNode { * int val; * struct ListNode *next; * ListNode(int x) : val(x), next(nullptr) {} * }; */ class Solution { public: /*...

2025-08-27

1 20

题解 | BFS

#include <bits/stdc++.h> using namespace std; #define endl "\n" // #define debug using ll = long long; void solve() { string s; ...

2025-08-26

1 23

题解 | 二维斐波那契数列

#include <bits/stdc++.h> using namespace std; #define endl "\n" //#define debug using ll = long long; const ll M = 1e9 + 7; void solve...

2025-08-26

1 24