一句话,慢慢理解:
public boolean isPowerOfThree(int n) {
return n == 1 || !(n == 0 || n % 3 != 0) && isPowerOfThree(n / 3);
}
一句话,慢慢理解:
public boolean isPowerOfThree(int n) {
return n == 1 || !(n == 0 || n % 3 != 0) && isPowerOfThree(n / 3);
}