Mar 30 · 8 min read · “Convenience is the fastest way to stay weak.” This is not a clean “how to reach 1200” guide. It’s not motivation either. This is just me looking back at what actually changed between being stuck aro
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Feb 16 · 7 min read · Binary Exponentiation : is a fast method to calculate powers like aⁿ , without multiplying a again and again n times. Instead of O(n) multiplications, it works in O(log n) time. Idea Behind Binary Exponentiation We use two simple observations : If po...
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Feb 14 · 4 min read · Sweep Line Ideas : Question :-Given N Intervals Of The Form -> L,RN<=10^5L,R <= 10^9 1 - Find Union Of All :The union of two sets contains all elements from both sets, with common elements included only once Example :Intervals : [1,5] [3,7] Numb...
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Feb 13 · 9 min read · Interval : An Interval is a continuous range of values between a start point and an end point on a lineExample :[1, 5) means the interval starts at 1 and goes up to 5, but does not include 5 Event : An Event is a specific point where an interval sta...
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Feb 11 · 7 min read · Contribution Technique Contribution Technique is an optimization method in Data Structures & Algorithms where we calculate how much each element contributes to the final answer instead of generating all subarrays.It helps reduce time complexity from ...
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