How should I practice Find Minimum Number of Transitions?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Tiktok online assessment problems in FastPrep.

Is Find Minimum Number of Transitions associated with Tiktok?

FastPrep tags this as a Tiktok online assessment coding practice problem when the problem catalog has that company and stage context.

Problem · Array

Find Minimum Number of Transitions

Learn this problem

● Easy

TiktokOA

See Tiktok hiring insights

Problem statement

Find the minimum number of changes to make the array consisting of binary numbers with the least number of transitions from 0 -> 1 or 1 -> 0.

Function

minTransitions(arr: int[]) → int

Complete the function minTransitions in the editor.

minTransitions has the following parameter:

int[] arr: an array of binary integers

Returns

int: the minimum number of transitions

Examples

Example 1

arr = [1, 0, 1, 0, 1]return = 1

The array can be transformed to [0, 0, 1, 1, 1] after swapping the index 0 and 3, resulting in only one transition from 0 to 1. Alternatively, it can also be transformed to [1, 1, 1, 0, 0] with one transition from 1 to 0. Therefore, the minimum number of transitions is 1.

Constraints

🐶

Problem statement

Function

Examples

Example 1

Constraints

More Tiktok problems