Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible ...

- find successors and predecessors using BST (both list will be sorted); in the end, we can easily get top k from the two sorted list - with BST: **inorder traversal gives us sorted predecessors - ...

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JDK 26 moves to general production availability. This short-term release is backed by six months of Premier-level support. Java Development Kit (JDK) 26, the latest standard Java release from Oracle, ...