9 docs tagged with "Easy"

Given two non-negative integers num1 and num2 represented as string, return the sum of num1 and num2.

Given two binary strings, return their sum (also a binary string).

A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom represent the minutes (0-59).

Say you have an array for which the i-th element is the price of a given stock on day i.

Say you have an array for which the i-th element is the price of a given stock on day i.

You are climbing a stair case. It takes n steps to reach to the top.

Given a non-negative integer num, repeatedly add all its digits until the result has only one digit.

Given a column title as appear in an Excel sheet, return its corresponding column number.

Find the closest number in an array of numbers