PROBLEM LINK:
Practice
Contest: Division 1
Contest: Division 2
Contest: Division 3
Contest: Division 4
Author: Kanhaiya Mohan
Tester: Tejas Pandey
Editorialist: Nishank Suresh
DIFFICULTY:
561
PREREQUISITES:
None
PROBLEM:
A problemsetter has proposed X problems and Y out of them were approved. Is Y at least 50\% of X?
EXPLANATION:
It is enough to directly check the condition: for Y to be at least 50\% of X, Y must satisfy the inequality 2Y \geq X.
So,
- The answer is “Yes” if 2Y \geq X
- The answer is “No” otherwise
TIME COMPLEXITY
\mathcal{O}(1) per test case.
CODE:
Editorialist's code (Python)
for _ in range(int(input())):
x, y = map(int, input().split())
print('Yes' if 2*y >= x else 'No')