mirror of
				https://git.wolves.top/wolves/leetcode.git
				synced 2025-11-04 17:26:32 +08:00 
			
		
		
		
	init
This commit is contained in:
		
							
								
								
									
										31
									
								
								else/demo/1.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										31
									
								
								else/demo/1.h
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,31 @@
 | 
			
		||||
//
 | 
			
		||||
// Created by 李洋 on 2024/1/8.
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
#ifndef LEECODE_C_1_H
 | 
			
		||||
#define LEECODE_C_1_H
 | 
			
		||||
 | 
			
		||||
#include <iostream>
 | 
			
		||||
#include <vector>
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
 | 
			
		||||
using namespace std;
 | 
			
		||||
 | 
			
		||||
void test1() {
 | 
			
		||||
    //方式一
 | 
			
		||||
    int a;
 | 
			
		||||
    cout << "输入长度:";
 | 
			
		||||
    cin >> a;
 | 
			
		||||
    int *p = (int *) malloc(a * sizeof(int)); //c写法在运行中分配空间创建指定长度数组
 | 
			
		||||
    p[a - 1] = 1;
 | 
			
		||||
    cout << p[a-1] << endl;
 | 
			
		||||
 | 
			
		||||
    //方式2 推荐
 | 
			
		||||
    vector<int> b; //c++ 向量,可以看作是动态数组,自动扩充容量
 | 
			
		||||
    vector<vector<int>> c; //二维动态数组
 | 
			
		||||
    b.push_back(1);
 | 
			
		||||
    b.push_back(2);
 | 
			
		||||
    b.size(); //获取当前长度
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#endif //LEECODE_C_1_H
 | 
			
		||||
		Reference in New Issue
	
	Block a user