Code RoomMinimum swaps to sort array
MediumPrep Room Coding #132

Minimum swaps to sort array

CodingAlgorithms & data structuresMid–Senior~30 min

Given an array a of distinct integers, return the minimum number of swaps (each swap exchanges any two positions) needed to sort the array in ascending order. The array length can be 1.

Implement
min_swaps_to_sort(a: list[int]) → int
Examples
in[[2,1,3,4]]out1
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 30 min
InputExpectedGot
[[2,1,3,4]]1not run yetsample