Submission #1985230

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Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
    int n;
    cin >> n;
    vector<int> a(1<<n);
    for(int i=0; i<1<<n; i++) cin >> a[i];
    for(int i=0; i<n; i++){
        for(int j=0; j<(int)a.size()/2; j++){
            if(a[2*j]==a[2*j+1]) a[j] = a[2*j];
            else a[j] = abs(a[2*j]-a[2*j+1]);
        }
    }
    cout << a[0] << endl;
    return 0;
}

Submission Info

Judge Result