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Fixed permute_recursive() by passing nums.copy(). Fixes TheAlgorithms#9014 (TheAlgorithms#9161)

* Fixes TheAlgorithms#9014 * Fixed permute_recursive() by passing nums.copy()

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Lines changed: 3 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@ def permute_recursive(nums: list[int]) -> list[list[int]]:`
`10`	`10`	`return [[]]`
`11`	`11`	`for _ in range(len(nums)):`
`12`	`12`	`n = nums.pop(0)`
`13`		`- permutations = permute_recursive(nums)`
	`13`	`+ permutations = permute_recursive(nums.copy())`
`14`	`14`	`for perm in permutations:`
`15`	`15`	`perm.append(n)`
`16`	`16`	`result.extend(permutations)`
`@@ -43,6 +43,6 @@ def backtrack(start: int) -> None:`
`43`	`43`	`if __name__ == "__main__":`
`44`	`44`	`import doctest`
`45`	`45`
`46`		`- res = permute_backtrack([1, 2, 3])`
`47`		`- print(res)`
	`46`	`+ result = permute_backtrack([1, 2, 3])`
	`47`	`+ print(result)`
`48`	`48`	`doctest.testmod()`

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