Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1’s…
Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the…
nums
Write a function to find the longest common prefix string amongst an array of strings.
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
target
Given a 32-bit signed integer, reverse digits of an integer.
Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as…
Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.
I
V
X
L
C
D
M