c++ custom comparator for elements in set
struct compare {
bool operator() (const int& x, const int& y) const {
return x<y; // if x<y then x will come before y. Change this condition as per requirement
}
};
int main()
{
set<int,compare> s; //use the comparator like this
}c++ set comparator
set<int, less<int>> st;
// or
set<int, greater<int>> st;
// c++ 11
auto cmp = [](int a, int b) { return ... };
set<int, decltype(cmp)> s(cmp);Copyright © 2021 Codeinu
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