Confusing Number
给一个整数, 问是不是confusing number.
class Solution {
public boolean confusingNumber(int N) {
int n = N;
int res = 0;
while (n > 0) {
int m = n % 10;
if (m == 2 || m == 3 || m == 4 || m == 5 || m == 7){
return false;
}else if(m == 6){
m = 9;
}
else if(m == 9){
m = 6;
}
res = res*10 + m;
n /= 10;
}
return res != N;
}
}