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set::begin() and set::end() in C++ STL
Set::begin() function is a bidirectional iterator used to return an iterator pointing to the first element of the set container.
Set::end() function is a bidirectional iterator used to return an iterator pointing to the last element of the set container.
Example Code
#include<iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
set<int> s;
set<int>::iterator it;
s.insert(7);
s.insert(6);
s.insert(1);
s.insert(4);
s.insert(2);
s.insert(9);
s.insert(10);
for (auto it=s.begin(); it != s.end(); ++it)
cout << ' ' << *it;
return 0;
}Output
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Updated on: 30-Jul-2019
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