Next permutation leetcode python solution
LeetCode has a Medium coding Problem in Its’ Algorithm Section “Next Permutation Leetcode”. Today We are going to solve this problem. LeetCode Link of the Problem is HERE. QuestionA permutation of an array of integers is an arrangement of its members into a sequence or linear order.
The next permutation of an array of integers is the next lexicographically greater permutation of its integer. If not feasible, reorganize the array in the lowest order possible (i.e., sorted in ascending order).
Given an array of integers The replacement must be in place and use only constant extra memory. Examples Input: nums = [1,2,3] Output: [1,3,2] Input: nums = [3,2,1] Output: [1,2,3] Input: nums = [1,1,5] Output: [1,5,1] Constraints:
Solution to Next Permutation LeetcodeGiven the Skeleton Code given by Leetcode
Looking forward from the end of the original array, we can see that the number progressively grows higher, then lowers at 2, and then we seek for the first number greater than 2, which is 3, then we swap 2 and 3, and finally we transpose all the numbers after 3. Complete Solution:
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