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479C codeforces solution in cpp

 

479C codeforces solution in cpp

by ujjal roy



#include<bits/stdc++.h>

using namespace std;

main()

{

    int n,i,sum=-2,a,b;

    cin>>n;

    vector<pair<int , int>> v;

    for(i=0;i<n;i++)


    {

        cin>>a>>b;

        v.push_back(make_pair(a,b));

    }

    sort(v.begin(),v.end());


    for(i=0;i<n;i++)

    {

      if(sum>v[i].second)

      {

          sum=v[i].first;

      }

      else

      {

          sum=v[i].second;

      }

    }

    cout<<sum<<endl;


    return 0;

}


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