c++ string pop_back code example

Example 1: remove last character from string c++

st = myString.substr(0, myString.size()-1);

Example 2: c++ vector pop_back

#include <bits/stdc++.h> 
using namespace std;
int main(){
    vector<int> v1{10, 20, 30, 40, 50};
    
    //removing elemenets
    v1.pop_back();  //removes 50
    v1.pop_back();  //removes 40

}

Example 3: c++ list pop back

void pop_back();
// desc: remove last element. complexity: constant