Adding implementation of next_permutation in java.
next_permutation is a great utility function provided by C++ as an inbuilt function but sometimes the problem can be a bit tricky when the same is needed to be used in JAVA. Thus adding an implementation for the same.
Adding implementation of next_permutation in java. next_permutation is a great utility function provided by C++ as an inbuilt function but sometimes the problem can be a bit tricky when the same is needed to be used in JAVA. Thus adding an implementation for the same.
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