Untitled

#include <iostream>
#include <vector>
#include <queue>

using namespace std;

int lastStoneWeight(int n, vector<int>& stones) {
    priority_queue<int> maxHeap(stones.begin(), stones.begin() + n);

    while (maxHeap.size() > 1) {
        int stoneOne = maxHeap.top();
        maxHeap.pop();
        int stoneTwo = maxHeap.top();
        maxHeap.pop();

        if (stoneOne != stoneTwo) {
            maxHeap.push(stoneOne - stoneTwo);
        }
    }

    return maxHeap.empty() ? 0 : maxHeap.top();
}

int main() {
    vector<int> stones = {2, 4, 5};
    int n = stones.size();
    cout << "Last stone weight is: " << lastStoneWeight(n, stones) << endl;
    return 0;
}