Rearrange array such that arr[i] >= arr[j] if i is even and arr[i]<=arr[j] if i is odd and j < i - GeeksforGeeks
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Move all zeroes to end of array | Set-2 (Using single traversal) - GeeksforGeeks
USER DEFINED FUNCTIONS | LECTURE 1 | ICSE 10 | Anjali Ma'am
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