Comparater function

[saurabhsingh1625 (Saurabh Singh)]

what is the purpose of passing bool($cmp)(int a,int b) in parameter of bubblesort function
please explain in proper way and give an example

[abhijeet.srivastava6499 (Abhijeet Srivastava)]

Priority queue 2

Lets talk in case of integers rather than this specific case. Lets say our comparator is: void operator()(int a,int b){ return (a<b); } Always perceive the return value of the comparator as answer to the question: Can ‘a’ come before ‘b’ ? So, in the comparator above, if we ask this question, it will return “true” iff (a<b). This means that if (a<b), ‘a’ can come before ‘b’ . So, if you were using this comparator for ‘sort’ function (in STL), in the final (sorted) array, ‘a’ will ap…

[abhijeet.srivastava6499 (Abhijeet Srivastava)]

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