@@ -0,0 +1,441 @@
+/**%0A * Name: Excel Sheet Column Title%0A * Number: 168%0A * Main Points: turn a integer to 26-based number%0A * Time Complexity: O(log26 n)%0A * Space Complexity: O(log26 n)%0A**/%0Aclass Solution %7B%0A    public String convertToTitle(int n) %7B%0A        StringBuilder sb = new StringBuilder();%0A        while (n %3E 0) %7B%0A            n--;%0A            sb.append((char)('A' + n %25 26));%0A            n /= 26;%0A        %7D%0A        return sb.reverse().toString();%0A    %7D%0A%7D

to 26-based Integer