1136A - Nastya Is Reading a Book

#include <bits/stdc++.h>

#include<stdio.h>

using namespace std;

int main()

{

  int n;

  vector<int> a;

  cin>>n;

  for(int i=0;i<n;i++)

  {

      int temp;

      cin>>temp>>temp;

      a.push_back(temp);

  }

  int last;

  cin>>last;

  int count=n;

  for(int i=0;i<a.size();i++)

  {

      if(last>a[i])

      {

          count--;

      }

  }

  cout<<count<<endl;

    return 0;

}