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Module DEMO-32-90DEMO-C-32

Primality Tester

DEMO-C-32 • Programming in C

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Problem Statement

Write a function int isPrime(int n) that returns 1 if n is a prime number, and 0 otherwise.

A prime number is greater than 1 and has no divisors other than 1 and itself.

Constraints

n

Input Format

A single integer.

Output Format

1 or 0.

Sample Testcases

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Sample #1
Public sample
Input
2
Output
1
Explanation
2 is prime.
Sample #2
Public sample
Input
4
Output
0
Explanation
4 is not prime.
Sample #3
Public sample
Input
1
Output
0
Explanation
1 is not prime.

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