在C语言中,可以使用sort函数对vector进行排序。下面是一个示例代码: #include <stdio.h> #include <stdlib.h> // 比较函数,用于sort函数的第三个参数 int compare(const void *a, const void *b) { return (*(int*)a - *(int*)b); } int main() { int arr[] = {5, 2, 8, 1, 9}; int...
This article will demonstrate multiple methods of how to sort a vector in C++.Use the std::sort Algorithm to Sort Vector ElementsThe std::sort function implements a generic algorithm to work with different objects and sorts the given elements in the range using the comparator function passed as...
vector中sort的用法 1. In C++, the `sort` function for `vector` is super handy. Let's say I have a `vector` of integers named `nums`. It's like having a box full of numbers all jumbled up. To sort them in ascending order, all I need to do is `sort(nums.begin(), nums.end...
print(two_D_vector);//sorting the 2D array based on a particular row//here we sort the last row of the 2D vector//in descending order//so, basically we sort the 1D array in//descending order(the last row)sort(two_D_vector[2].begin(), two_D_vector[2].end(), greater<int>())...
// sorts vector in decreasing order of their first names // std::sort(v.begin(), v.end(), std::greater<Node>()); for (const Node &node: v) { std::cout << '{' << node.first_name << ',' << node.last_name << '}'; std::cout << std::endl; } return 0; }Download...
Examples of C++ Vector Sort Let’s have a look at the examples and understand how actually a sorting can be done using vector arrays in C++. Example #1 C++ code to demonstrate vector sorting in decreasing order. Code: #include<bits/stdc++.h>usingnamespacestd;intmain(){vector<int>v{21,...
void pop_back(); // 删除vector末尾的元素,vector大小相应减一 void push_back(); //用于在vector的末尾添加元素 T back(); // 返回vector末尾的元素 void clear(); // 将vector清空,vector大小变为0 其他访问方式: cout<<a[5]<<endl; cout<<a.at(5)<<endl; ...
下面将介绍使用sort函数对vector容器的特定区域进行排序的方法。 1. sort函数 sort函数是C++ STL中的排序函数,可用于对数组、容器、迭代器等进行排序,其函数原型如下: ``` void sort (RandomAccessIterator first, RandomAccessIterator last, Compare comp); ``` 其中,first和last分别指定排序区间的起始和终止位置...
using namespace std;vector<int> merge(vector<int> ,vector<int> );int main(){ vector<int> v1;v1.push_back(4);v1.push_back(6);v1.push_back(2);vector<int> v2;v2.push_back(3);v2.push_back(1);v2.push_back(5);vector<int> v3=merge(v1,v2);sort(v3.begin(),...
Use thestd::sortAlgorithm With a Custom Function to Sort Vector of Pairs in C++ Another method to pass a comparison function to thestd::sortalgorithm is to define a separate function in the form ofbool cmp(const Type1 &a, const Type2 &b). Generally,std::sorthasO(nlogn)running time ...