Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf …
A Palindrome string is a string that mirrors itself, for example, ’12a21′ reverse is the same string and ‘abcde’ is not. A Palindrome number is a integer number that …
Question: Given a number (integer) stored in an array of digits int digits Plus one and return the new array. Source: http://oj.leetcode.com/problems/plus-one/ The number is written from left to right, so for …
oj.leetcode.com is an online judge website that provides quick exercise to programming tasks. This is helpful before you go for an interview for a software company. The tasks seem easier …
In Python 2.x, the function range(x, y, s) generates a actual list of elements from x to y – 1 step s. The other syntax is range(a) and range(a, b) which is the same as range(0, a, 1) and range(a, b, 1) respectively. For example, …