Codechef•Sep 20, 2025

Volume Control

Hazrat Ali

Codechef

Chef is watching TV. The current volume of the TV is X. Pressing the volume up button of the TV remote increases the volume by 1 while pressing the volume down button decreases the volume by 1. Chef wants to change the volume from X to Y. Find the minimum number of button presses required to do so.

Input Format

  • The first line contains a single integer T - the number of test cases. Then the test cases follow.
  • The first and only line of each test case contains two integers X and Y - the initial volume and final volume of the TV.

Output Format

For each test case, output the minimum number of times Chef has to press a button to change the volume from X to Y.

Constraints

  • 1≤T≤100
  • 1≤X,Y≤100

Sample 1:

Input 
2
50 54
12 10
Output
 
4
2

Solution
t = int(input())

for _ in range(t):
    x, y = map(int, input().split())
    print(abs(x - y))



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