{"id":59071,"date":"2025-08-16T21:09:41","date_gmt":"2025-08-16T13:09:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/59071.html"},"modified":"2025-08-16T21:09:41","modified_gmt":"2025-08-16T13:09:41","slug":"leetcode%e7%ae%97%e6%b3%95%e5%88%b7%e9%a2%98%e7%9a%84%e7%ac%ac%e4%b9%9d%e5%a4%a9","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/59071.html","title":{"rendered":"leetcode\u7b97\u6cd5\u5237\u9898\u7684\u7b2c\u4e5d\u5929"},"content":{"rendered":"

\u4eca\u5929\u662f\u6808\u4e0e\u961f\u5217<\/p>\n

\u6808\u4e0e\u961f\u5217\u7684\u7406\u8bba\u57fa\u7840<\/h2>\n

1.\u539f\u7406\u5927\u5bb6\u5e94\u8be5\u90fd\u61c2，\u961f\u5217\u662f\u5148\u8fdb\u5148\u51fa，\u6808\u662f\u5148\u8fdb\u540e\u51fa\u3002<\/p>\n

2.\u5927\u5bb6\u8981\u77e5\u9053，\u6808\u548c\u961f\u5217\u90fd\u662fSTL（c++\u6807\u51c6\u5e93）\u91cc\u9762\u7684\u4e24\u4e2a\u6570\u636e\u7ed3\u6784\u3002<\/p>\n

3.HP STL \u5176\u4ed6\u7248\u672c\u7684C++ STL，\u4e00\u822c\u662f\u4ee5HP STL\u4e3a\u84dd\u672c\u5b9e\u73b0\u51fa\u6765\u7684，HP STL\u662fC++ STL\u7684\u7b2c\u4e00\u4e2a\u5b9e\u73b0\u7248\u672c，\u800c\u4e14\u5f00\u653e\u6e90\u4ee3\u7801\u3002<\/p>\n

4.P.J.Plauger STL \u7531P.J.Plauger\u53c2\u7167HP STL\u5b9e\u73b0\u51fa\u6765\u7684，\u88abVisual C++\u7f16\u8bd1\u5668\u6240\u91c7\u7528，\u4e0d\u662f\u5f00\u6e90\u7684\u3002<\/p>\n

5.SGI STL \u7531Silicon Graphics Computer Systems\u516c\u53f8\u53c2\u7167HP STL\u5b9e\u73b0，\u88abLinux\u7684C++\u7f16\u8bd1\u5668GCC\u6240\u91c7\u7528，SGI STL\u662f\u5f00\u6e90\u8f6f\u4ef6，\u6e90\u7801\u53ef\u8bfb\u6027\u751a\u9ad8\u3002<\/p>\n

6.\u6808\u63d0\u4f9bpush\u548cpop\u7b49\u7b49\u63a5\u53e3，\u6240\u6709\u5143\u7d20\u5fc5\u987b\u7b26\u5408\u5148\u8fdb\u540e\u51fa\u89c4\u5219，\u6240\u4ee5\u6808\u4e0d\u63d0\u4f9b\u8d70\u8bbf\u529f\u80fd，\u4e5f\u4e0d\u63d0\u4f9b\u8fed\u4ee3\u5668，\u4e0d\u50cf\u662fset\u6216\u8005map\u63d0\u4f9b\u8fed\u4ee3\u5668iterator\u6765\u904d\u5386\u6240\u6709\u5143\u7d20\u3002<\/p>\n

7.，\u6808\u7684\u5e95\u5c42\u5b9e\u73b0\u53ef\u4ee5\u662fvector，deque，list \u90fd\u662f\u53ef\u4ee5\u7684， \u4e3b\u8981\u5c31\u662f\u6570\u7ec4\u548c\u94fe\u8868\u7684\u5e95\u5c42\u5b9e\u73b0\u3002<\/p>\n

8.\u961f\u5217\u4e2d\u5148\u8fdb\u5148\u51fa\u7684\u6570\u636e\u7ed3\u6784\u5417，\u540c\u6837\u4e0d\u5141\u8bb8\u6709\u904d\u5386\u884c\u4e3a，\u4e0d\u63d0\u4f9b\u8fed\u4ee3\u5668，\u4f46\u662f\u961f\u5217\u4e0d\u88ab\u5f52\u4e3a\u5bb9\u5668，\u800c\u88ab\u5f52\u4e3a\u5bb9\u5668\u9002\u914d\u5668\u3002<\/p>\n

leetcode 232.\u7528\u6808\u5b9e\u73b0\u961f\u5217<\/h2>\n

\u9898\u76ee\u94fe\u63a5<\/p>\n

class MyQueue {
\npublic:
\n stack<int> stIn;
\n stack<int> stOut;<\/p>\n

MyQueue() {<\/p>\n

}<\/p>\n

void push(int x) {
\n stIn.push(x);
\n }<\/p>\n

int pop() {
\n \/\/\u53ea\u6709\u5f53stOut\u4e3a\u7a7a\u7684\u65f6\u5019，\u518d\u4ecestIn\u91cc\u5bfc\u5165\u6570\u636e
\n if(stOut.empty()){
\n \/\/\u4ecestIn\u5bfc\u5165\u6570\u636e\u77e5\u9053stIn\u4e3a\u7a7a
\n while(!stIn.empty()){
\n stOut.push(stIn.top());
\n stIn.pop();
\n }
\n }
\n int result=stOut.top();
\n stOut.pop();
\n return result;
\n }<\/p>\n

int peek() {
\n int result=this->pop();\/\/\u76f4\u63a5\u8c03\u7528pop\u51fd\u6570
\n stOut.push(result);\/\/\u56e0\u4e3apop\u51fd\u6570\u5f39\u51fa\u4e86\u5143\u7d20，\u6211\u4eec\u8fd8\u8981\u518d\u6dfb\u52a0\u56de\u53bb
\n return result;
\n }<\/p>\n

bool empty() {
\n return stIn.empty()&&stOut.empty();
\n }
\n};<\/p>\n

\/**
\n * Your MyQueue object will be instantiated and called as such:
\n * MyQueue* obj = new MyQueue();
\n * obj->push(x);
\n * int param_2 = obj->pop();
\n * int param_3 = obj->peek();
\n * bool param_4 = obj->empty();
\n *\/ <\/p>\n

\u601d\u8def\u603b\u7ed3：\u8fd9\u9053\u9898\u7684\u5173\u952e\u5728\u4e8e\u6211\u4eec\u5982\u4f55\u7528\u6808\u6765\u5b9e\u73b0\u961f\u5217\u7684\u529f\u80fd\u51fd\u6570\u3002\u5176\u5b9e\u5c31\u662f\u7528\u4e24\u4e2a\u6808，\u4e00\u4e2a\u8f93\u5165\u6808，\u4e00\u4e2a\u8f93\u51fa\u6808\u3002\u5728push\u6570\u636e\u7684\u65f6\u5019，\u53ea\u8981\u6570\u636e\u653e\u8fdb\u8f93\u5165\u6808\u5c31\u597d，\u4f46\u5728pop\u7684\u65f6\u5019，\u64cd\u4f5c\u5c31\u590d\u6742\u4e00\u4e9b，\u8f93\u51fa\u6808\u5982\u679c\u4e3a\u7a7a，\u5c31\u628a\u8fdb\u6808\u6570\u636e\u5168\u90e8\u5bfc\u5165\u8fdb\u6765（\u6ce8\u610f\u662f\u5168\u90e8\u5bfc\u5165），\u518d\u4ece\u51fa\u6808\u5f39\u51fa\u6570\u636e，\u5982\u679c\u8f93\u51fa\u6808\u4e0d\u4e3a\u7a7a，\u5219\u76f4\u63a5\u4ece\u51fa\u6808\u5f39\u51fa\u6570\u636e\u5c31\u53ef\u4ee5\u4e86\u3002\u5728\u4ee3\u7801\u5b9e\u73b0\u7684\u65f6\u5019，\u4f1a\u53d1\u73b0pop() \u548c peek()\u4e24\u4e2a\u51fd\u6570\u529f\u80fd\u7c7b\u4f3c，\u4ee3\u7801\u5b9e\u73b0\u4e0a\u4e5f\u662f\u7c7b\u4f3c\u7684\u3002\u5982\u679c\u8fdb\u6808\u548c\u51fa\u6808\u90fd\u4e3a\u7a7a\u7684\u8bdd，\u8bf4\u660e\u6a21\u62df\u7684\u961f\u5217\u4e3a\u7a7a\u4e86\u3002<\/p>\n

leetcode 225.\u7528\u961f\u5217\u5b9e\u73b0\u6808<\/h2>\n

\u8fd9\u9053\u9898\u5927\u5bb6\u53ef\u80fd\u4f1a\u60ef\u6027\u601d\u7ef4，\u4ee5\u4e3a\u8fd8\u8981\u7528\u4e24\u4e2a\u961f\u5217\u6765\u6a21\u62df\u6808，\u5176\u5b9e\u53ea\u8981\u7528\u4e00\u4e2a\u961f\u5217\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

\u5e76\u4e14\u8fd9\u9053\u9898\u7528\u4e00\u4e2a\u961f\u5217\u6765\u6a21\u62df\u4e5f\u662f\u6bd4\u8f83\u7b80\u5355\u7684，\u751a\u81f3\u6bd4\u7528\u4e24\u4e2a\u961f\u5217\u8fd8\u7b80\u5355\u3002<\/p>\n

\u9898\u76ee\u94fe\u63a5<\/p>\n

class MyStack {
\npublic:
\n queue<int> que;
\n MyStack() {<\/p>\n

}<\/p>\n

void push(int x) {
\n que.push(x);\/\/\u76f4\u63a5\u63d2\u5165\u5c31\u597d\u4e86
\n }<\/p>\n

int pop() {
\n int size=que.size();
\n size–;
\n while(size–){\/\/\u5faa\u73af\u63d2\u5165\u961f\u5217\u5934\u90e8\u7684\u6570\u503c
\n que.push(que.front());
\n que.pop();
\n }
\n int result=que.front();\/\/\u8fd9\u91cc\u53ea\u662f\u53d6\u5230\u4e86\u6570\u503c，\u4f46\u662f\u8fd8\u6ca1\u5f39\u51fa\u6765
\n que.pop();\/\/\u6240\u4ee5\u8981\u5f39\u51fa
\n return result;
\n }<\/p>\n

int top() {
\n return que.back();\/\/\u6808\u7684\u5934\u90e8\u5176\u5b9e\u5c31\u662f\u961f\u5217\u7684\u5c3e\u90e8，\u76f4\u63a5return\u5c31\u597d\u4e86
\n }<\/p>\n

bool empty() {
\n return que.empty();
\n }
\n};<\/p>\n

\/**
\n * Your MyStack object will be instantiated and called as such:
\n * MyStack* obj = new MyStack();
\n * obj->push(x);
\n * int param_2 = obj->pop();
\n * int param_3 = obj->top();
\n * bool param_4 = obj->empty();
\n *\/ <\/p>\n

\u601d\u8def\u603b\u7ed3：\u8fd9\u9053\u9898\u7684\u5173\u952e\u5728\u4e8e，\u8981\u6df1\u523b\u7406\u89e3\u6808\u548c\u961f\u5217\u7684\u5e95\u5c42\u5b9e\u73b0\u539f\u7406，\u5e76\u4e14\u78b0\u5230\u8fd9\u79cd\u6570\u636e\u7ed3\u6784\u7684\u9898\u76ee\u6700\u597d\u662f\u80fd\u591f\u81ea\u5df1\u753b\u51fa\u4e00\u5f20\u56fe\u51fa\u6765，\u8fd9\u6837\u66f4\u597d\u7406\u89e3\u3002<\/p>\n

leetcode 20.\u6709\u6548\u7684\u62ec\u53f7<\/h2>\n

\u9898\u76ee\u94fe\u63a5<\/p>\n

\u62ec\u53f7\u5339\u914d\u662f\u7528\u6808\u6765\u89e3\u51b3\u7684\u7ecf\u5178\u95ee\u9898\u3002\u7531\u4e8e\u6808\u7684\u7279\u6b8a\u6027，\u975e\u5e38\u9002\u5408\u505a\u5bf9\u79f0\u5339\u914d\u7c7b\u578b\u7684\u9898\u76ee\u3002<\/p>\n

class Solution {
\npublic:
\n bool isValid(string s) {
\n stack<int> st;
\n if(s.size()%2!=0) return false;\/\/\u5982\u679cs\u7684\u957f\u5ea6\u4e3a\u5947\u6570，\u4e00\u5b9a\u4e0d\u7b26\u5408\u6761\u4ef6
\n for(int i=0;i<s.size();i++){
\n if(s[i]=='(') st.push(')');
\n else if(s[i]=='[') st.push(']');
\n else if(s[i]=='{') st.push('}');
\n \/\/ \u7b2c\u4e09\u79cd\u60c5\u51b5：\u904d\u5386\u5b57\u7b26\u4e32\u5339\u914d\u7684\u8fc7\u7a0b\u4e2d，\u6808\u5df2\u7ecf\u4e3a\u7a7a\u4e86，\u6ca1\u6709\u5339\u914d\u7684\u5b57\u7b26\u4e86，\u8bf4\u660e\u53f3\u62ec\u53f7\u6ca1\u6709\u627e\u5230\u5bf9\u5e94\u7684\u5de6\u62ec\u53f7 return false
\n \/\/ \u7b2c\u4e8c\u79cd\u60c5\u51b5：\u904d\u5386\u5b57\u7b26\u4e32\u5339\u914d\u7684\u8fc7\u7a0b\u4e2d，\u53d1\u73b0\u6808\u91cc\u6ca1\u6709\u6211\u4eec\u8981\u5339\u914d\u7684\u5b57\u7b26\u3002\u6240\u4ee5return false
\n else if(st.empty()||st.top()!=s[i]) return false;
\n else st.pop();
\n }
\n \/\/ \u7b2c\u4e00\u79cd\u60c5\u51b5：\u6b64\u65f6\u6211\u4eec\u5df2\u7ecf\u904d\u5386\u5b8c\u4e86\u5b57\u7b26\u4e32，\u4f46\u662f\u6808\u4e0d\u4e3a\u7a7a，\u8bf4\u660e\u6709\u76f8\u5e94\u7684\u5de6\u62ec\u53f7\u6ca1\u6709\u53f3\u62ec\u53f7\u6765\u5339\u914d，\u6240\u4ee5return false，\u5426\u5219\u5c31return true
\n if(st.empty()) return true;
\n else return false;
\n }
\n}; <\/p>\n

\u601d\u8def\u603b\u7ed3：\u4ee5\u4e0a\u4ee3\u7801\u4e2d\u7684\u6ce8\u91ca\u4e2d，\u6709\u5206\u522b\u5bf9\u5e94\u6839\u636e\u9898\u610f\u7684\u4e09\u79cd\u6761\u4ef6，\u5c31\u662f\u53d1\u73b0\u4efb\u610f\u4e00\u79cd\u62ec\u53f7，\u5c31\u5f80\u6808\u91cc\u9762\u63d2\u5165\u5bf9\u5e94\u7684\u62ec\u53f7，\u7136\u540e\u9047\u5230\u7ee7\u7eed\u904d\u5386\u5b57\u7b26\u4e32，\u9047\u5230\u5bf9\u5e94\u7684\u62ec\u53f7，\u5982\u679c\u548c\u6808\u91cc\u9762\u9876\u90e8\u7684\u62ec\u53f7\u76f8\u7b49，\u5c31pop\u51fa\u6765，\u7136\u540e\u7ee7\u7eed\u8fdb\u884c\u6bd4\u8f83\u3002\u6280\u5de7\u6027\u7684\u4e1c\u897f\u6ca1\u6709\u56fa\u5b9a\u7684\u5b66\u4e60\u65b9\u6cd5，\u8fd8\u662f\u8981\u591a\u770b\u591a\u7ec3，\u81ea\u5df1\u7075\u6d3b\u8fd0\u7528\u4e86\u3002<\/p>\n

leetcode 1047.\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u76f8\u90bb\u91cd\u590d\u9879<\/h2>\n

\u9898\u76ee\u94fe\u63a5<\/p>\n

\u8fd9\u9053\u9898\u4e5f\u662f\u6808\u7684\u7ecf\u5178\u5e94\u7528\u3002\u5927\u6982\u7684\u610f\u601d\u6709\u70b9\u50cf\u5f00\u5fc3\u6d88\u6d88\u4e50\u3002<\/p>\n

class Solution {
\npublic:
\n string removeDuplicates(string s) {
\n stack<int> st;
\n for(int i=0;i<s.size();i++){
\n if(st.empty()||st.top()!=s[i]){
\n st.push(s[i]);
\n }
\n else{
\n st.pop();\/\/s\u4e0est.top()\u76f8\u7b49\u7684\u60c5\u51b5
\n }
\n }
\n string result="";
\n while(!st.empty()){\/\/\u628a\u6808\u4e2d\u7684\u5143\u7d20\u653e\u5230result\u5b57\u7b26\u4e32\u4e2d
\n result+=st.top();
\n st.pop();
\n }
\n reverse(result.begin(),result.end());\/\/\u6700\u540e\u8981\u628a\u5b57\u7b26\u4e32\u53cd\u8f6c\u4e00\u4e0b
\n return result;
\n }
\n}; <\/p>\n

\u601d\u8def\u603b\u7ed3：\u5927\u5bb6\u5982\u679c\u6709\u6761\u4ef6\u53ef\u4ee5\u753b\u4e2a\u56fe，\u9047\u5230\u8fd9\u79cd\u6570\u636e\u7ed3\u6784\u7684\u9898\u76ee，\u4e00\u5b9a\u8981\u591a\u753b\u56fe，\u8fd9\u6837\u80fd\u591f\u66f4\u597d\u5730\u7406\u89e3，\u5149\u51ed\u7a7a\u60f3\u7684\u8bdd\u5f88\u96be\u60f3\u5f97\u5230\u3002\u601d\u8def\u5c31\u662f\u5148\u628a\u5b57\u7b26\u4e32\u653e\u5230\u6808\u91cc\u9762，\u7136\u540e\u770b\u60c5\u51b5\u6d88\u6d88\u4e50，\u5176\u6b21\u518d\u628a\u6808\u7684\u4e2d\u5143\u7d20\u62fc\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32，\u6700\u540e\u518d\u628a\u8fd9\u4e2a\u5b57\u7b26\u4e32\u53cd\u8f6c\u4e00\u4e0b\u5c31\u5b8c\u6210\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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