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题解 | #二叉搜索树的最近公共祖先#

/** * struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {...

C++

2022-04-18

0 311

题解 | #【模板】链表#

#include <bits/stdc++.h> using namespace std; struct Node { int v; Node *next; Node(int x): v(x), next(NULL) {} }; int main() { ...

C++

2022-04-18

0 417

题解 | #点击消除#

#include <bits/stdc++.h> using namespace std; int main() { stack<char> st; string s; cin>>s; for (auto& c: s) { ...

C++

2022-04-18

0 381

题解 | #逆波兰表达式求值#

class Solution { public: /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param tokens string字符串vector * @return int整型...

C++

2022-04-18

0 394

题解 | #栈的压入、弹出序列#

class Solution { public: bool IsPopOrder(vector<int> pushV,vector<int> popV) { stack<int> st; int n = pushV.size...

C++

2022-04-18

0 338

题解 | #从中序与后序遍历序列构造二叉树#

某厂笔试题 /** * struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * TreeNode(int x) : val(x), left(nullptr), right(null...

C++

2022-04-18

0 401

题解 | #统计字符串中各类型字符的个数#

#include <iostream> #include <cstring> using namespace std; int main() { int letter = 0; int digit = 0; int space = 0; i...

C++

2022-04-18

0 312

题解 | #统计字符串中各字母字符对应的个数#

#include <iostream> #include <map> // write your code here...... using namespace std; int main() { char str[100] = { 0 }; cin.g...

C++

2022-04-18

0 311

题解 | #查找#

#include<bits/stdc++.h> using namespace std; int main(){ set<int>s; //write your code here...... int n, m, x; cin>>n>>m...

C++

2022-04-18

0 319

题解 | #移动 0#

class Solution { public: /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param nums int整型vector * @return int整型vector...

C++

2022-04-17

0 343