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Main.java
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Main.java
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package com.company;
public class Main {
public static void main(String[] args) {
// write your code here
}
public boolean reorderedPowerOf2(int N) {
int[] powers = new int[30];
powers[0] = 1;
powers[1] = 2;
for (int i = 2; i < powers.length; i++)
powers[i] = powers[i - 1] * 2;
for (int power : powers){
if(check(Integer.toString(power), Integer.toString(N)))
return true;
}
return false;
}
private boolean check(String num1, String num2) {
if(num1.length() != num2.length())
return false;
int[] digits = new int[10];
for (int i = 0; i < num1.length(); i++) {
digits[num1.charAt(i) - '0']++;
digits[num2.charAt(i) - '0']--;
}
for (int i = 0; i < digits.length; i++) {
if(digits[i] != 0)
return false;
}
return true;
}
}