Can you solve this real interview question? Snakes and Ladders - You are given an n x n integer matrix board where the cells are labeled from 1 to n2 in a Boustrophedon style [https://en.wikipedia.org/wiki/Boustrophedon] starting from the bottom left of the…

Can you solve this real interview question? Find Closest Node to Given Two Nodes - You are given a directed graph of n nodes numbered from 0 to n - 1, where each node has at most one outgoing edge.

The graph is represented with a given 0-indexed array edges…

Can you solve this real interview question? Cheapest Flights Within K Stops - There are n cities connected by some number of flights. You are given an array flights where flights[i] = [fromi, toi, pricei] indicates that there is a flight from city fromi to…

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Leetcode #400
Here is my account: https://lnkd.in/d4ykiC5J
I am very happy to say that I solved 400 problems on Leetcode.com
Let you improve your…

Can you solve this real interview question? Concatenated Words - Given an array of strings words (without duplicates), return all the concatenated words in the given list of words.

A concatenated word is defined as a string that is comprised entirely of…

Can you solve this real interview question? Data Stream as Disjoint Intervals - Given a data stream input of non-negative integers a1, a2, ..., an, summarize the numbers seen so far as a list of disjoint intervals.

Implement the SummaryRanges class:

*…

Can you solve this real interview question? LFU Cache - Design and implement a data structure for a Least Frequently Used (LFU) [https://en.wikipedia.org/wiki/Least_frequently_used] cache.

Implement the LFUCache class:

* LFUCache(int capacity) Initializes…

Can you solve this real interview question? N-th Tribonacci Number - The Tribonacci sequence Tn is defined as follows: 

T0 = 0, T1 = 1, T2 = 1, and Tn+3 = Tn + Tn+1 + Tn+2 for n >= 0.

Given n, return the value of Tn.

 

Example 1:


Input: n = 4
Output:…

Can you solve this real interview question? Greatest Common Divisor of Strings - For two strings s and t, we say "t divides s" if and only if s = t + t + t + ... + t + t (i.e., t is concatenated with itself one or more times).

Given two strings str1 and…