auto and ranges based loop

 

auto and ranges based loop

#include<bits/stdc++.h>

using namespace std;

int main()

{

    vector<int> v={1,2,3,4,5,1};

    for(auto u:v)

    {

        cout<<u<<" ";

    }

    cout<<endl;

   vector<pair<int,int>> vp={{1,2},{3,4},{5,1}};

   for(auto u : vp) cout<<u.first<<" "<<u.second<<endl;

    return 0;

}