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 delete last element from a set in C++
Suppose we have one STL set in C++. There are few elements. We have to delete the last element from that set. So if the elements are like [10, 41, 54, 20, 23, 69, 84, 75], then the set will be like [10 20 23 41 54 69 75 84], and last element is 84. We will see the C++ code to delete last element from set.
Example
#include<iostream>
#include<set>
using namespace std;
void display(set<int> my_set){
for (auto it = my_set.begin(); it != my_set.end(); ++it)
cout << *it << " ";
}
int main() {
int arr[] = {10, 41, 54, 20, 23, 69, 84, 75};
int n = sizeof(arr)/sizeof(arr[0]);
set<int> my_set;
for(int i = 0; i<n; i++){
my_set.insert(arr[i]);
}
cout << "Set before delete: ";
display(my_set);
set<int>::iterator it;
it = prev(my_set.end());
my_set.erase(it);
cout << "\nSet after delete: ";
display(my_set);
}Output
Set before delete: 10 20 23 41 54 69 75 84 Set after delete: 10 20 23 41 54 69 75
Updated on: 17-Dec-2019
701 Views
Advertisements