Problem Solving

Heaps

(Aditya Verma's YT Channel)

K^th largest element: here
K^th smallest element: here
Print K largest elements: here
Sort a K-sorted array: here
Find K closest numbers to a given number: here
Print top k frequent numbers: here
Frequency sort: here
Find K closest pairs to origin: here
Connect ropes to minimize the cost: here
Sum of elements between K1^th smallest and K2^th smallest elements: here

Sorting Algorithms

Selection sort: here
Bubble sort: here
Insertion sort: here
Merge sort: here
Heap sort: here
Quick sort: here