C++ Program to Check Whether a Given number is a power of two or not

The Program in C++ Program to Check Whether a Given number is a power of two or not is given below:

``````#include <iostream>

using namespace std;

int main() {
int n;
cout << "Hello Codeauri Family,enter a number here to know if the number is a power of 2 or not!: ";
cin >> n;

if (n <= 0) {
cout << n << " is not a power of 2." << endl;
return 0;
}

while (n % 2 == 0) {
n /= 2;
}

if (n == 1) {
cout << "Okay, the number is a power of 2." << endl;
} else {
cout << "Sorry Coder's,the number is not a power of 2." << endl;
}

return 0;
}
``````

Output:

Hello Codeauri Family,enter a number here to know if the number is a power of 2 or not!: 16
Okay, the number is a power of 2.

Pro-Tips💡

This program prompts the user to enter a number, which is stored in the variable `n`.

If `n` is less than or equal to 0, it is immediately printed as not being a power of 2.

If `n` is positive, the program repeatedly divides `n` by 2 until `n` is no longer divisible by 2.

If `n` becomes equal to 1 after this process, it is a power of 2. Otherwise, it is not a power of 2.

The result is printed accordingly.

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