Keep it in range – Python Exercise with Solution

Write a small function and make it pass its checks.

What to build

A function clamp(x, low, high).

Requirements

clamp returns x if it is between low and high.
If x is below low, it returns low. If x is above high, it returns high.
Each input line is one case, and the starter prints the result.

Input

The first line has n. Each of the next n lines has x, low and high.

Output

One number per line.

Constraints

n is from 1 to 50, and low is at most high.

Example

Input:

2
5 0 10
-3 0 10

Output:

5
0

Why it works

Edge cases such as x equal to low, or low equal to high, are exactly where a slip in the comparisons would show.

Examples

Example 1 · Input

2
5 0 10
-3 0 10

Expected output

5
0

Example 2 · Input

1
15 0 10

Expected output

Prompts inside input() are ignored when checking, so input("n: ") is fine.

Hints

Hint 1

If x is below low, return low. If it is above high, return high.

Hint 2

Think about values exactly equal to low or high.

Solution

Show one correct solution (try it yourself first)

def clamp(x, low, high):
    if x < low:
        return low
    if x > high:
        return high
    return x

n = int(input())
for _ in range(n):
    x, low, high = [int(v) for v in input().split()]
    print(clamp(x, low, high))

Lesson: Testing your code →