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Data Structures and Algorithms Questions

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Minimum Swaps To Make Sequences Increasing

We have two integer sequences A and B of the same non-zero length.

We are allowed to swap elements A[i] and B[i]. Note that both elements are in the same index position in their respective sequences.

At the end of some number of swaps, A and B are both strictly increasing. (A sequence is strictly increasing if and only if A[0] < A[1] < A[2] < ... < A[A.length - 1].)

Given A and B, return the minimum number of swaps to make both sequences strictly increasing. It is guaranteed that the given input always makes it possible.

Example:

Input: A=[5, 2, 14],  B=[1, 6, 12])
Output: 1

Explanation: Swap A[0] and B[0].  Then the sequences are:
A = [1, 2, 14] and B = [5, 6, 12]
which are both strictly increasing.

Constraints:

  • A, B are arrays with the same length, and that length will be in the range [1, 1000].
  • A[i], B[i] are integer values in the range [0, 2000].
INSTRUCTIONS

  1. Write your code inside a function named minimum_swaps
  2. Your function must return the output, it should not print the output.
  3. To execute a block on the right-side coding panel, please press 'shift'+ 'enter' inside the block.
  4. Your code should work for all permitted possible values(check Constraints) of A and B

Complete the below code in the right side coding panel

def minimum_swaps(A: list, B: list) -> int:
    # your code goes here
See Answer

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