All Problems
hardFunctions
Decorator for Execution Time
Problem Statement
Create a decorator that measures the execution time of a function. Apply it to a function that sums numbers from 1 to n.
SAMPLE INPUT
1000000
SAMPLE OUTPUT
Sum: 500000500000 Execution time: 0.0312s
CONSTRAINTS
- 1 <= n <= 10^8
Explanation: Use time module to measure before and after function execution.