231-power-of-two

DevGod

Elf Vtuber

Caution

DevGod needs to write an editorial for this problem!

c

bool isPowerOfTwo(int n) {
    if(n <= 0){return false;}
    return ((n)&(n-1))==0;
}

js

/**
 * @param {number} n
 * @return {boolean}
 */
var isPowerOfTwo = function(n) {
    if(n <= 0){return false;}
    return ((n)&(n-1))===0;
};