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Givenscores of N athletes, find their relative ranks and the people with thetop three highest scores, who will be awarded medals: "Gold Medal","Silver Medal" and "Bronze Medal".Example1:Input:

Givena string that consists of only uppercase English letters, you can replace anyletter in the string with another letter at most ktimes.Find the length of a longest substring containing all repeatin...

Thestring "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows likethis: (you may want to display this pattern in a fixed font for betterlegibility)P   A   H   NA P L S I

Sayyou have an array for which the ith element is the price of a given stock on day i.Ifyou were only permitted to complete at most one transaction (ie, buy one andsell one share of the stock), de

Givenan array and a value, remove all instances of that value in-place andreturn the new length.Donot allocate extra space for another array, you must do this by modifying the input array in-place

Givena 32-bit signed integer, reverse digits of an integer.Example1:Input: 123Output: 321Example2:Input: -123Output: -321Example3:Input: 120Output: 21Note:Assume we a

You are given a string, s,and a list of words, words,that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each wordin words exactly once and wit

Givenan array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and othersappear once.Findall the elements of [1, n] inclusive that do not appear inthis array.Couldy

canbe represented by two bits (10 or 11).Nowgiven a string represented by several bits. Return whether the last charactermust be a one-bit character or not. The given string will always end with aze

Givenan array and a value, remove all instances of that value in-place and return the new length.Donot allocate extra space for another array, you must do this by modifying the input array in-plac

Givenan array nums of n integers and an integer target, find three integers in nums such that the sum is closestto target. Return thesum of the three integers. You may assume that each input would hav...