Shubham mishra

Self-taught Software Developer passionate about learning new technologies.

[Shubham mishra @Shubham_dev_10]

@jamescoder12 All

[Shubham mishra @Shubham_dev_10]

@nitesh_singh5 Intrested

[Shubham mishra @Shubham_dev_10]

Master DSA Patters

Today I solved Valid Palindrome II: one deletion allowed
Two pointers + skip-left/skip-right check → O(N).
#DSA #TwoPointers #Coding #code #technology

[Shubham mishra @Shubham_dev_10]

Today I solved.

Boats to Save People: sort + two pointers → optimal pairing.
Greedy logic cuts O(N²) → O(N log N).
#DSA #TwoPointers #GreedyAlgorithms #code #tech

[Shubham mishra @Shubham_dev_10]

Today I deep dive into loops
• Single Index → simple iteration
• Adjacent → pair checks
• Triplets → 3-element ops
• Two Pointers → sorted array tricks
• Sliding Window → subarrays/substrings
• Nested Loops → brute force combos

#code #tech #technology #DSA #LeetCode

[Shubham mishra @Shubham_dev_10]

Today I 4Sum problem
Built on 2Sum/3Sum using the Two-Pointer + Sorting pattern to cut time from O(n^4) → O(n^3).
Mastering patterns > memorizing solutions.
#DSA #4Sum #Coding #LeetCode #ProblemSolving

[Shubham mishra @Shubham_dev_10]

I Solved 3Sum Closest toda
Used sorting + two-pointer pattern to find 3 numbers whose sum is closest to a target.
Time: O(n²)
Space: O(1)

#DSA #CodingChallenge #TwoPointers #code #technology

[Shubham mishra @Shubham_dev_10]

Solved 3Sum Problem Today

Pattern: Two Pointers + Sorting
Fix one number, use two pointers for the remaining pair
Skip duplicates smartly
Time Complexity: O(n²)
Subproblems: 2Sum, duplicate handling
#DSA #LeetCode #Coding #100DaysOfCode #FAANGPrep #code #tech

[Shubham mishra @Shubham_dev_10]

8th day of learning DSA.

Rotate Array - LeetCode
Solved using reversal technique: reverse all, reverse first k, reverse rest.
Big-O = O(n) | O(1)
Great example of array manipulation via subproblems
#100DayChallenge #code #tech #Coding #DSA

[Shubham mishra @Shubham_dev_10]

Day 7 of learning DSA.

I solved Trapping Rain Water — a classic Array + Two Pointer problem!
Big O - O(n) | 💾 O(1)
A must-solve to master logic and edge case handling.
#DSA #LeetCode #Coding #JavaScript #code #tech

[Shubham mishra @Shubham_dev_10]

Today's Problem:
Container With Most Water
1. Use two pointers: left & right
2. Move the pointer with smaller height
3. Track max area at each step
🕒 Time: O(n)
📦 Space: O(1)
#LeetCode #DSA #Algorithms #JavaScript #code

[Shubham mishra @Shubham_dev_10]

Journey of mastering DSA 6th day.
Longest Repeating Character Replacement
Sliding window + freq map trick:
Keep maxFreq, shrink when (window - maxFreq) > k.
O(n) time | O(1) space.
#LeetCode #100DaysOfCode #JavaScript #Coding

[Shubham mishra @Shubham_dev_10]

@vivoplt Sure

[Shubham mishra @Shubham_dev_10]

4th day of learning DSA.

Solved Move Zeroes on LeetCode
Used the two-pointer technique move all 0s to the end in-place.

Time Complexity: O(n) time
Space Complexity: O(1) space

One more step toward cleaner, faster code 💪
#LeetCode #JavaScript #100DaysOfCode #dsa

[Shubham mishra @Shubham_dev_10]

@Hiteshdotcom Is it going to be on youtube?

[Shubham mishra @Shubham_dev_10]

3rd day of learning DSA.

Solved buy and sell stock and learned about dsa patterns .

[Shubham mishra @Shubham_dev_10]

2nd day of learning DSA.

Solved twoSum using brute force, today and learned about Big-O-Notation and also covered basics of algorithms.

[Shubham mishra @Shubham_dev_10]

@mischavdburg Devops

[Shubham mishra @Shubham_dev_10]

Stated learning dsa solved my first leetcode problem.

Confused with dsa patterns which to start with any suggestion or resources to learn about dsa patterns would be very helpful.

[Shubham mishra @Shubham_dev_10]

@merishabh_singh Frontend Developer with 1 years of experience

7400203430

[email protected]