Python Cheat Sheet for Leetcode - Discuss - LeetCode
Dictionaries are used to store data values in key:value pairs. Info about collections.Counter() available below. Operations Time Complexities Python Counter is a container that will hold the count of each of the elements present in the container. The counter is a sub-class available inside the dictionary class. Specifically used for element frequencies Pretty similar to dictionary, infact I use defaultdict(int) most of the time A double-ended queue, or deque, has the feature of adding and removing elements from either end. Operations Time Complexities As we know the Heap Data Structure is used to implement the Priority Queue ADT. In python we can directly access a Priority Queue implemented using a Heap by using the Heapq library/module. Operations Time Complexities A set is a collection which is unordered, immutable, unindexed, No Duplicates. Operations Time Complexities A tuple is a collection which is ordered, unchangeable and can contain duplicate values Operations Time Complexitie