3516 - Find Closest Person.

Easy

You are given three integers x, y, and z, representing the positions of three people on a number line:

• x is the position of Person 1.

• y is the position of Person 2.

• z is the position of Person 3, who does not move.

Both Person 1 and Person 2 move toward Person 3 at the same speed.

Determine which person reaches Person 3 first:

• Return 1 if Person 1 arrives first.

• Return 2 if Person 2 arrives first.

• Return 0 if both arrive at the same time.

Return the result accordingly.

Example 1:

Input: x = 2, y = 7, z = 4

Output: 1

Explanation:

• Person 1 is at position 2 and can reach Person 3 (at position 4) in 2 steps.

• Person 2 is at position 7 and can reach Person 3 in 3 steps.

Since Person 1 reaches Person 3 first, the output is 1.

Example 2:

Input: x = 2, y = 5, z = 6

Output: 2

Explanation:

• Person 1 is at position 2 and can reach Person 3 (at position 6) in 4 steps.

• Person 2 is at position 5 and can reach Person 3 in 1 step.

Since Person 2 reaches Person 3 first, the output is 2.

Example 3:

Input: x = 1, y = 5, z = 3

Output: 0

Explanation:

• Person 1 is at position 1 and can reach Person 3 (at position 3) in 2 steps.

• Person 2 is at position 5 and can reach Person 3 in 2 steps.

Since both Person 1 and Person 2 reach Person 3 at the same time, the output is 0.

Constraints:

• 1 <= x, y, z <= 100