Top Coding Interview Question β Solved
Students in a class are asked to stand in ascending order according to their heights for the annual
class photograph. Determine the number of students not currentlylstanding in their correct
positions.
Example
height = [1, 1, 3, 3, 4, 1]
The 3 students indicated in red at indices 2, 4 and 5, are not in the right positions. The correct
positions are [1, 1, 1, 3, 3, 4]. Return 3.
Function Description
Complete the function countStudents in the editor below.
countStudents has the following parameter(s): int height[n]: an array of heights in the order the
students are standing
Returns:
int: the number of students not standing in the correct positions.
Constraints
Β· 1β€nβ€ 105