Coder-Strike 2014 - Round 1 B. Network Configuration

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main(){
int n,k;
cin >>n >> k;
vector<int> a(n);
for(int i = 0 ; i < n ; ++ i) cin >> a[i];
sort(a.begin(),a.end());
cout<< a[n-k]<<endl;
}