Mayank Kumar
Mayank Kumar @x64Mayank ·
🧩 Day 25: LC 974 {Subarray Sums Divisible by K} 💡 Prefix Sum + Hashmap Track prefix sum remainders in a frequency map. Key trick: add 'k' to negative remainders to keep them valid! Matching remainders = a divisible subarray found. #DailyCoding #ProblemSolving #TecO6
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Mayank Kumar
Mayank Kumar @x64Mayank ·
🧩 Day 24: LC 152 {Max Product Subarray} 💡 Kadane's Algo Track min/max products to handle negatives. Two negatives can multiply into the new global maximum! #DailyCoding #JobSearch #TecUL
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Mayank Kumar
Mayank Kumar @x64Mayank ·
🧩 Day 23: LC 53 {Max Subarray} 💡 Kadane's Algorithm Extend the sum or start fresh at current element. Global max tracks the best subarray found! #DailyCoding #JobSearch #Tecyy
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