This problem asks you to write a function that takes an array of integers and returns the sum of the array's elements. For example, given the input [1, 2, 3, 4 , 5], the function should return 15.

197

Nov 20
Implement a min heap in Python by creating a Python class with the following methods: insert(self, val), remove_min(self), and peek_min(self).

209

Nov 20
This technical problem deals with adding elements in an array. Given an array of integers, the function should return the sum of the elements in the array.

194

Nov 20
This technical problem explains how to create a calculator class in Python that can perform addition, subtraction, multiplication, and division operations. The calculator takes two operands (numbers) and an operator as input, and returns the result of the operation.

201

Nov 19
This technical problem deals with implementing a stack data structure in Python using a class. The class should have two methods: push, which adds an item to the top of the stack, and pop , which removes and returns the top item from the stack. If the stack is empty, pop should raise an IndexError.

201

Nov 13