Help me in solving LCPPAS40 problem

help
, ,
1

My issue

what is wrong in this code

My code

#include <iostream>
using namespace std;

int main() {
    string one = "Coding";
    string two = "on";
    string three = "CodeChef";
    // Write your code below
    string sentence="Coding on CodeChef";
    cout<<one<<"-"<<one.length()<<endl;
    cout<<two<<"-"<<two.length()<<endl;
    cout<<three<<"-"<<three.length()<<endl;
    cout<<sentence<<"-"<<sentence.length()<<endl;


    return 0;
}

Learning course: Learn Programming and Problem Solving using C++
Problem Link: https://www.codechef.com/learn/course/sit-cpp-fall/PROGCC02/problems/LCPPAS40