Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to append a vector in a vector in C++?
To append a vector in a vector can simply be done by vector insert() method.
Algorithm
Begin Declare a function show(). Pass a constructor of a vector as a parameter within show() function. for (auto const& i: input) Print the value of variable i. Declare vect1 of vector type. Initialize values in the vect1. Declare vect2 of vector type. Initialize values in the vect2. Call vect2.insert(vect2.begin(), vect1.begin(), vect1.end()) to append the vect1 into vect2. Print “Resultant vector is:” Call show() function to display the value of vect2. End.
Example Code
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
void show(vector<int> const &input) {
for (auto const& i: input) {
std::cout << i << " ";
}
}
int main() {
vector<int> v1 = { 1, 2, 3 };
vector<int> v2 = { 4, 5 };
v2.insert(v2.begin(), v1.begin(), v1.end());
cout<<"Resultant vector is:"<<endl;
show(v2);
return 0;
}Output
Resultant vector is: 1 2 3 4 5
Updated on: 30-Jul-2019
13K+ Views
Advertisements