Neetcode-150-Progress-Journal

This will be a daily journal on my progress through the Neetcode 150.

I will update this repository everyday, no matter my progress on the 150. If there are days where I make no progress, I will still update to show that I have no progress. As taken advice from reddit, I plan to have some rules for myself throughtout this journey. Rule #1: Have Fun :) Rule #2: Spend max an hour on each problem, and look up solutions if I'm not close to a solution. Rule #3: Do at least 2 problems a day. So with rule 2, this will be 2 hours a day on neetcode. Could potentially solve more if time spent is less than an hour on each problem. These are the 3 rules I have so far, and may update them in the future if need be.

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✅ Solved/WIP Problems

#	Category	Problem	Problem Link	Optimal TSC?	Solved?
1	1 Arrays And Hashing	1 Contains Duplicate	1_Contains_Duplicate.py	✅	✅
2	1 Arrays And Hashing	2 Valid Anagram	2_Valid_Anagram.py	✅	✅
3	1 Arrays And Hashing	3 Two Sum	3_Two_Sum.py	✅	✅
4	1 Arrays And Hashing	4 Group Anagrams	4_Group_Anagrams.py	✅	✅
5	1 Arrays And Hashing	5 Top K Frequent Elements	5_Top_K_Frequent_Elements.py	❌	✅
6	1 Arrays And Hashing	6 Encode And Decode Strings	6_Encode_and_Decode_Strings.py	❌	❌
7	1 Arrays And Hashing	7 Products Of Array Except Self	7_Products_of_Array_Except_Self.py	✅	✅
8	1 Arrays And Hashing	8 Valid Sudoku	8_Valid_Sudoku.py	✅	✅
9	1 Arrays And Hashing	9 Longest Consecutive Sequence	9_Longest_Consecutive_Sequence.py	❌	✅
10	2 Two Pointers	10 Valid Palindrome	10_Valid_Palindrome.py	✅	✅
11	2 Two Pointers	11 Two Integer Sum Ii	11_Two_Integer_Sum_II.py	✅	✅
12	2 Two Pointers	12 3Sum	12_3Sum.py	❌	✅
13	2 Two Pointers	13 Container With Most Water	13_Container_With_Most_Water.py	✅	✅
14	2 Two Pointers	14 Trapping Rain Water	14_Trapping_Rain_Water.py	✅	✅
15	3 Sliding Window	15 Best Time To Buy And Sell Stock	15_Best_Time_to_Buy_and_Sell_Stock.py	✅	✅
16	3 Sliding Window	16 Longest Substring Without Repeating Characters	16_Longest_Substring_Without_Repeating_Characters.py	✅	✅
17	3 Sliding Window	17 Longest Repeating Character Replacement	17_Longest_Repeating_Character_Replacement.py	❌	❌
18	3 Sliding Window	18 Permutation In String	18_Permutation_in_String.py	✅	✅
19	3 Sliding Window	19 Minimum Window Substring	19_Minimum_Window_Substring.py	❌	❌
20	3 Sliding Window	20 Sliding Window Maximum	20_Sliding_Window_Maximum.py	❌	✅
21	4 Stack	21 Valid Parentheses	21_Valid_Parentheses.py	✅	✅
22	4 Stack	22 Minimum Stack	22_Minimum_Stack.py	❌	✅
23	4 Stack	23 Evaluate Reverse Polish Notation	23_Evaluate_Reverse_Polish_Notation.py	✅	✅
24	4 Stack	24 Generate Parentheses	24_Generate_Parentheses.py	❌	❌
25	4 Stack	25 Daily Temperatures	25_Daily_Temperatures.py	✅	✅
26	4 Stack	26 Car Fleet	26_Car_Fleet.py	✅	✅
27	4 Stack	27 Largest Rectangle In Histogram	27_Largest_Rectangle_In_Histogram.py	❌	❌

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🗓 Daily Journal

Check out Journal/ for daily progress logs.

🧰 Tools Used

• Python 3.10+
• Neetcode.io
• PyCharm
• Git + GitHub

🎯 Goal

• ⏱ Solve 2+ problems every day
• 🧼 Write clean, understandable code
• ✍️ Reflect in daily journal entries