PROBLEM LINK:
Practice
Contest: Division 1
Contest: Division 2
Contest: Division 3
Contest: Division 4
Author: tejas10p
Testers: iceknight1093, rivalq
Editorialist: iceknight1093
DIFFICULTY:
TBD
PREREQUISITES:
None
PROBLEM:
You earned X rupees this year; and anyone who earns strictly more than Y rupees per year must pay taxes.
Given that Y \lt X, how much money must you invest so that you no longer have to pay taxes?
EXPLANATION:
Since Y \lt X, it’s clearly optimal to bring our money down to Y (since it only shouldn’t be strictly more than Y).
This can be done by investing X-Y rupees.
So, the answer is simply X-Y.
TIME COMPLEXITY:
\mathcal{O}(N) per testcase.
CODE:
Code (Python)
for _ in range(int(input())):
x, y = map(int, input().split())
print(x - y)