1 all loops use

// print numbers from 1 - 10 with while, do while and for loop.
#include <iostream>
using namespace std;

int main()
{
    // while
    int i=1;
    cout<<"while"<<endl;
    while(i<=10){
        cout<<i<<" ";
        i++;
    }
    cout<<endl<<"do while"<<endl;
    i=1;
    do{
        cout<<i<<" ";
        i++;
    }while(i<=10);

    cout<<endl<<"for loop"<<endl;
    for(i=1 ; i<=10 ; i++)
        cout<<i<<" ";
    return 0;
}
// output
// while
// 1 2 3 4 5 6 7 8 9 10
// do while
// 1 2 3 4 5 6 7 8 9 10
// for loop
// 1 2 3 4 5 6 7 8 9 10