string erase() in C++

erase() : It remove characters. It returns a reference to this string.

Parameters: 

__pos – Index of the first character to remove (default 0).

 __n – Number of characters to remove (default remainder).

Syntax:

str.erase(__pos, __n)

For Example:

str = "abcdef"

str.erase(1,3) => It removes 3 characters from position 1. So, string becomes "aef"

Approach

C++

#include <bits/stdc++.h>
using namespace std;

int main()
{
    string str = "abcdef";

    str.erase(1, 3);

    cout << str << "\n";
    
    return 0;
}