Vtuber DevGod @DevGod9

Male elf princess #vtuber | Minecraft Addict | Livestreamer & Content Creator | Most tweets are written by viewers twitch.tv/devgod2020 Elf Forest Joined March 2021

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Vtuber DevGod @DevGod9

3 days ago

Lmao, the sequel to my first ever #DP problem I solved on #LeetCode just dropped. This was a fun trip down the DP training arc memory lane 🙂

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#LeetCode 2221, using #Python for the builtin comb nCr function. In my head I saw a pascal triangle & went with that. Summing up the first row elements * their pascal triangle binomial coefficients, sum it all together, then modulo 10 it. #Array #Math #Combinatrics

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Vtuber DevGod @DevGod9

6 days ago

#LeetCode 976, more triangle math, again using that one rule that Side A < Side B + Side C. Sorting an array, then finding the largest three sides that form a triangle under this rule. If no valid triangles exist we return zero instead #JS #Math #Geometry #Greedy #Sort

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Vtuber DevGod @DevGod9

7 days ago

#LeetCode 812, just using Shoelace algorithm thingy for quickly finding the area of a triangle from three given coordinate points. Since its small testcases I don't care about a 3 nested for loop #JS #Math #Geometry

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Vtuber DevGod @DevGod9

a week ago

#LeetCode 611, Using that one rule of triangles that the sum of two sides MUST be larger then leftover side. I #sort, pick two number pairs, find the leftover side with #Lodash binary search. Score gets added with the distance between found target & Y #JS #Math #Greedy

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Vtuber DevGod @DevGod9

2 weeks ago

#LeetCode 3005, just using builtin Lodash JS functions to count the freqs, then filter and math based on whatever the freqency of the largest nums freq is. Pretty easy problem #JS #Array

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Vtuber DevGod @DevGod9

2 weeks ago

#LeetCode 3508, Implement Router. Used a messy mix of data structures such as #HashMap #Deque #Set etc. to solve this problem. Read my solution here, I might get back into the habit of actually sharing my solutions on the leetcode website :) leetcode.com/problems/imple…

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Vtuber DevGod @DevGod9

2 weeks ago

An AI Gemini powered agent has arrived to Leetcode Thoughts so far? Personally I'm gonna just keep using ChatGPT as a separate tool, so that way I dont have an AI window cluttering my workflow / only once I rage quit a hard problem and need help #Leetcode #AI

LeetCode @LeetCode

2 weeks ago

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Vtuber DevGod @DevGod9

2 weeks ago

#Leetcode 3484, just some simple builtin map functions for get & set. Plus some simple string parsing for the formula solving. Don't initalize an entire matrix for the spreadsheet, when you can just have a small hashmap instead :) #JS #Hashmap #InterviewPrep

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Vtuber DevGod @DevGod9

3 weeks ago

#Leetcode 2197, using functions to calculate the GCD & LCM. Then just using a stack to simulate the given rules. More of a medium hard problem today.

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Vtuber DevGod @DevGod9

3 weeks ago

#LeetCode 1935, just using some regular expressions to filter out which words in the given sentence contained the banned letters, then return the length. #JS #String #RegularExpression

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Vtuber DevGod @DevGod9

3 weeks ago

#LeetCode 966, using a map & set to keep track of possible edited words that match what's in the wordlist #String array. Words can be unedited, lowercased to match, or vowels edited to different vowels. Pushing everything into an answer array #JS #Array #Hashmap #Hashtable

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Vtuber DevGod @DevGod9

3 weeks ago

#Leetcode 3541, Just using #JS maps to keep track of frequencies, then returning the sum of the two maxium freqs. Also using a regular expressiong again to check if a chr is a vowel or not :) #HashMap #String #Counting

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Vtuber DevGod @DevGod9

3 weeks ago

#Leetcode 3227. Since Alice goes first, she could secure a win by either the entire ODD count of vowels from the string, or by taking an odd amount of vowels from an even count, making it odd, forcing Bob to lose. The problem is checking if the given string contains a vowel #JS

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Vtuber DevGod @DevGod9

4 weeks ago

#Leetcode 2327, #DP taking the amont of secret holders the previous day + secret holders not bound by the delay - secret holders whom forget the secret on the i th day. So dp[i]=dp[i-1]+people telling the secret on ith day. Finish by modding 10^9+7, & minus forgetting people #JS

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Vtuber DevGod @DevGod9

4 weeks ago

#Leetcode 1317, could have overthought the daily problem using #OEIS A052382() formula for finding numbers without the zero digit, but since it was easy with small testcase sizes, I just went with a quick & easy while loop instead #Math #JS