Check whether K-th bit is set or not c++

Check whether K-th bit is set or not in C++

#include <iostream>
using namespace std;

bool isKthBitSet(int n, int k) {
    if (n & (1 << (k - 1)))
        return true;
    else
        return false;
}

int main() {
    int n = 20, k = 3;
    if (isKthBitSet(n, k))
        cout << "K-th bit is set";
    else
        cout << "K-th bit is not set";
    return 0;
}