**Problem Statement:** Given a number N, calculate the square of the number N. Square in C.

**Examples:**

Example 1:Input:N = 3Output:9Explanation:3*3 = 9Example 2:Input:N = 4Output:16Explanation:4*4 = 16

** Disclaimer**:

*Don’t jump directly to the solution, try it out yourself first.*

## What is Square of a Number?

A square of a number is simply the resultant number obtained by multiplying the number with itself. For example, square of 2 will be 2*2, and square of 10 will be 10*10 and so on.

**Approach:**

To calculate the square of a number we need to multiply the number by itself.

**Code:**

## C Program

```
#include<stdio.h>
int square(int n)
{
int sq = n*n;
return sq;
}
int main()
{
int n=3;
printf("The square of the given number %d is %d",n,square(n));
}
```

**Output:**

The square of the given number 3 is 9

**Time Complexity:** O(1)

**Space Complexity:** O(1)

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