Confusing Number
给一个整数, 问是不是confusing number.
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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; } } |