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Data Structure
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- Replace All Elements with Zero in an Array
- Sum of Elements at Even Indices
- Sum of Elements at Odd Indices
- Find the Average of Array Elements
- Count the Number of Zeros in an Array
- Move All Zeros to the End of an Array
- Rotate an Array by K Positions
- Rotate an Array by One Position
- Insert an Element at a Given Position in an Array
- Delete an Element from a Given Position in an Array
- Find the Index of an Element in an Array
- Find Union of Two Arrays
- Find Intersection of Two Arrays
- Sort an Array of 0s and 1s
- Find the Largest Sum Contiguous Subarray (Kadane’s Algorithm – Intro)
- Kadane’s Algorithm (Maximum Subarray Sum)
- Two Sum Problem
- Subarray with Given Sum
- Longest Subarray with Sum K
- Rearrange Array Alternately (Max–Min)
- Leaders in an Array
- Equilibrium Index of an Array
- Stock Buy and Sell (Single Transaction)
- Find the Second Smallest Element in an Array
- Find the Second Largest Element in an Array
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