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back tracking - Coggle Diagram
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More Problems
Given array A of numbers and a number S, find the combination of the array with sum equal to S. Numbers of array can be repeated
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If this array has duplicate elements it will lead to repeated subsets.
So We should remove the duplicate elements first and then start the next step
DeDup can be done after sorting the array
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Given N, Print ALl the valid parnthesis of size 2N
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