7-Day Interview Sprint

Given an m x n binary matrix mat, return the distance of the nearest 0 for each cell.

Given an array of n integers nums, a 132 pattern is a subsequence of three integers nums[i], nums[j] and nums[k] such that i < j < k and nums[i] < nums[k] < nums[j].

Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0.

Given an integer array nums of length n and an integer target, find three integers in nums such that the sum is closest to target.

Given an integer array arr, and an integer target, return the number of tuples i, j, k such that i < j < k and arr[i] + arr[j] + arr[k] == target.

Given an array nums of n integers, return an array of all the unique quadruplets [nums[a], nums[b], nums[c], nums[d]] such that: You may return the answer in any order.

We are given an array asteroids of integers representing asteroids in a row.

Given a string s which represents an expression, evaluate this expression and return its value.

You are given an array heights of n integers representing the number of bricks in n consecutive towers.

You are given a 0-indexed array maxHeights of n integers.

You are given an integer array target and an integer n.

There are n cars at given miles away from the starting mile 0, traveling to reach the mile target.

Given an array nums of n integers, your task is to find the maximum value of k for which there exist two adjacent subarrays of length k each, such that both subarrays are strictly...

Your country has an infinite number of lakes.

A conveyor belt has packages that must be shipped from one port to another within days days.

There is a car with capacity empty seats.

There are n cities connected by some number of flights.

You are given two integer arrays, nums1 and nums2, both of length n, along with a positive integer k.

Return the value of the leftmost node visible at each level of a binary tree, from top to bottom.

Given an array of strings queries and a string pattern, return a boolean array answer where answer[i] is true if queries[i] matches pattern, and false otherwise.

There is a binary tree rooted at 0 consisting of n nodes.

You are given an unrooted weighted tree with n vertices representing servers numbered from 0 to n - 1, an array edges where edges[i] = [ai, bi, weighti] represents a bidirectional...

There is an undirected tree with n nodes labeled from 0 to n - 1, and rooted at node 0.

Find the length, in edges, of the longest path between any two nodes in a binary tree.

Given a list of accounts where each element accounts[i] is a list of strings, where the first element accounts[i][0] is a name, and the rest of the elements are emails...

Given a directed acyclic graph (DAG) of n nodes labeled from 0 to n - 1, find all possible paths from node 0 to node n - 1 and return them in any order.

You are given an integer array nums of length n where nums is a permutation of the numbers in the range [0, n - 1].

Given an n x n grid containing only values 0 and 1, where 0 represents water and 1 represents land, find a water cell such that its distance to the nearest land cell is maximized,...

Given an m x n matrix board where each cell is a battleship 'X' or empty '.', return the number of the battleships on board.

There is a room with n bulbs labeled from 1 to n that all are turned on initially, and four buttons on the wall.

There is only one character 'A' on the screen of a notepad.

You are given a strictly increasing integer array rungs that represents the height of rungs on a ladder.

An additive number is a string whose digits can form an additive sequence.

You are given two integer arrays nums1 and nums2 both of the same length.

n passengers board an airplane with exactly n seats.

Add two non-negative integers stored as reverse-order digit linked lists and return the sum in the same format.

You are given a 2D integer array rectangles where rectangles[i] = [li, hi] indicates that ith rectangle has a length of li and a height of hi.

There are n soldiers standing in a line.

You are given two arrays of integers, fruits and baskets, each of length n, where fruits[i] represents the quantity of the ith type of fruit, and baskets[j] represents the...

You are given an array points where points[i] = [xi, yi] represents the coordinates of a point on an infinite plane.