Joined May 2022
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295 Photos and videos
Feb 6
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC No.: 3634
๐ก Approach: Sort & Slide
(Sliding Window Two Pointers)
๐ฅ Day 788 Streak ๐ช
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Feb 6
โฑ๏ธ Complexity
โ T.C: O(n log n) (sorting) O(n) window scan
๐ซ S.C: O(1) (no extra space)
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Feb 2
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC No.: 3013
๐ก Approach: Dual Set Sliding Window
๐ฅ Day 784 Streak ๐ช
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Feb 2
โฑ๏ธ Time & Space Complexity
โฑ๏ธ T.C : O(n log n)
โ Sliding window TreeSet insert/remove & rebalancing
๐ซ S.C : O(n)
โ Two TreeSets to manage window elements
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Jan 29
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC No.: 2976
๐ก Approach: FloydโWarshall on Characters (All-Pairs Shortest Path)
๐ฅ Day 780 Streak ๐ช
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Jan 29
โฑ๏ธ Time & Space Complexity
โT.C : O(26ยณ n) โ effectively O(n) (since 26 is constant)
๐ซS.C : O(26ยฒ) โ constant space
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Jan 26
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC NO.: 1200
๐ก Approach: Sort & Scan
๐ฅ Day 777 Streak ๐ช
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116
Jan 26
โฑ๏ธ Time & Space Complexity
โ T.C: O(n log n)
-> sorting dominates
๐ซ S.C: O(1)
-> extra space (excluding output list)
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Jan 25
๐ฎ๐ณ๐นLeetCode Daily Challenge
๐ LC NO.: 1984
๐ก Approach: Sort & Shrink Window
๐ฅ Day 776 Streak ๐ช
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2
16
128
Jan 25
โฑ๏ธ Time & Space Complexity
โ T.C : O(n log n)
-> Sorting dominates the runtime
๐ซ S.C: O(1)
-> No extra space (in-place sorting)
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Jan 20
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC: 3314 โ Construct the Minimum Bitwise Array I
๐ก Approach: Trailing-Ones Trick ๐ง
๐ฅ Day 771 Streak ๐ช
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Jan 20
โฑ๏ธ Time & Space Complexity
โ
T.C : O(n) Each number is processed in constant time (bit shifts are bounded by 32 bits).
โ
S.C : O(1) (excluding output array)
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Jan 19
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC: 1292 โ Maximum Side Length of a Square with Sum โค Threshold
๐ก Approach: Prefix Sum Square Growth
๐ฅ Day 770 Streak ๐ช
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Jan 19
โฑ๏ธ Time & Space Complexity
โ Time Complexity: O(m ร n ร min(m, n))
๐ซ Space Complexity: O(1) (in-place prefix sum)
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Jan 17
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC.: 3047
๐ก Approach: Brute-Force Rectangle Intersection
๐ฅ Day 768 Streak ๐ช
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Jan 17
โฑ๏ธ Time & Space Complexity
โ T.C: O(nยฒ) โ> checking all rectangle pairs
๐ซ S.C: O(1) โ > no extra data structures
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Jan 16
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC.: 2975 โ Maximum Square Area by Removing Fences
๐ก Approach: Common Distance Matching
๐ฅ Day 767 Streak ๐ช
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Jan 16
โฑ๏ธTime & Space Complexity
โT.C : O(Hยฒ Vยฒ)
H = number of horizontal fences
V = number of vertical fences
We check all pairwise distances
๐ซS.C : O(Hยฒ)
For storing all horizontal distances in a HashSet
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Jan 13
๐ฎ๐ณ๐น LeetCode Daily Challenge
๐ LC.: 3453 โ Separate Squares I
๐ก Approach: Area Balance Binary Search
๐ฅ Day 764 Streak ๐ช
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Jan 13
โฑ๏ธ Time & Space Complexity
โ Time Complexity: O(N * log H)
๐ซ Space Complexity: O(1)
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