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Module DEMO-32-89DEMO-C-32

Base-10 Logarithm

DEMO-C-32 • Programming in C

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Problem Statement

Write a program that calculates the base-10 logarithm of a number using log10.

Target difficulty: Easy

Constraints

x > 0

Input Format

A single positive floating-point number.

Output Format

The base-10 logarithm formatted to 2 decimal places.

Sample Testcases

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Sample #1
Public sample
Input
10.0
Output
1.00
Explanation
log10(10.0) = 1.00
Sample #2
Public sample
Input
1.0
Output
0.00
Explanation
log10(1.0) = 0.00
Sample #3
Public sample
Input
0.1
Output
-1.00
Explanation
log10(0.1) = -1.00
Sample #4
Public sample
Input
2.0
Output
0.30
Explanation
log10(2.0) = 0.30

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