1136A-Nastya Is Reading a Book,

(A) Nastya Is Reading a Book, Accepted

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#include<iostream>
#include<stdio.h>
#include<bits/stdc++.h>
using namespace std;
int main()
{
 
int n,k;
cin >>n;
int arr[2*n];
for(int j=0;j<2*n;j++)
cin >>arr[j];
 
 
cin>>k;
float x=0;
for(int j=0;j<2*n;j++){
if(k<=arr[j])
x++;
 
}
float ans =x/2;
cout<<ceil(ans);
}