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comparator for priority queue c++

Worthy Warrior on Dec 25, 2020

class Foo
{

};

class Compare
{
public:
    bool operator() (Foo, Foo)
    {
        return true;
    }
};

int main()
{
    std::priority_queue<Foo, std::vector<Foo>, Compare> pq;
    return 0;
}

Source: stackoverflow.com

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how to use priority queue comparator stl c++

Ugliest Unicorn on Apr 11, 2021

void SamplePriorityQueueWithLamda()
{
    // using lambda to compare elements.
    auto compare = [](int lhs, int rhs)
                {
                    return lhs < rhs;
                };

    std::priority_queue<int, std::vector<int>, decltype(compare)> q(compare);

    for(int n : {1,8,5,6,3,4,0,9,7,2})
        q.push(n);


    printQueue(q);
}

Source: neutrofoton.github.io

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"comparator for priority queue c++" Code Answer's