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prev_permutation
Syntax: #include <algorithm> bool prev_permutation( iterator start, iterator end ); bool prev_permutation( iterator start, iterator end, StrictWeakOrdering cmp ); The prev_permutation() function attempts to transform the given range of elements [start,end) into the next lexicographically smaller permutation of elements. If it succeeds, it returns true, otherwise, it returns false. If a strict weak ordering function object cmp is provided, it is used instead of the < operator when comparing elements. Related topics:
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