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| public class Solution {
public boolean isPowerOfThree(int n) {
if (n == 1) {
return true;
}
if (n < 3) {
return false;
}
while (n / 3 > 0) {
if (n % 3 != 0) {
return false;
}
n = n / 3;
if(n == 1){
return true;
}
}
return false;
}
}
|