PROBLEM LINK:
Practice
Contest: Division 1
Contest: Division 2
Contest: Division 3
Contest: Division 4
Tester and Editorialist: iceknight1093
DIFFICULTY:
416
PREREQUISITES:
None
PROBLEM:
Chef needs to park her car for H hours.
Parking costs Rs. X for the first hour and Rs. Y for each subsequent hour.
How much will Chef pay in parking charges?
EXPLANATION:
The first hour will cost Rs. X.
There are H-1 hours remaining, each costing Rs. Y.
So, the overall cost is
X + (H-1)\cdot Y
TIME COMPLEXITY
\mathcal{O}(1) per test case.
CODE:
Editorialist's code (Python)
x, y, h = map(int, input().split())
print(x + y*(h-1))