Razorpay Reverse Transactions K-Group
Razorpay Reverse Transactions K-Group
HardLinked Lists100% accepted
Razorpay batches transactions in groups of k. Reverse nodes in each group of k, leave remaining nodes as-is if fewer than k. Return modified head.
Approach
Reverse nodes in k-group in a linked list.
Input
5 2
1 2 3 4 5
Output
2 1 4 3 5
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