Vector 

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

using namespace std;

int main() {
    
    vector<int> A = {13 , 2 ,3, 11};
    sort(A.begin(),A.end());
    
    
    bool present = binary_search(A.begin(),A.end(),20);
    
    for(int i=0; i<4; i++){
        
        cout<<A[i]<<" ";
        
    }
    cout<<endl;
    cout<<present;
    cout<<endl;
    cout<<*A.begin();
    
    
    
}