conversion-library
conversion library, example as octalToBinary, eightToTwo, binaryToOctal, twoToEight, decimalToBinary, tenToTwo, binaryToDecimal, twoToTen, decimalToOtherBase, tenToOther, otherBaseToDecimal, otherToTen, ListNode, arrayToListNode, listNodeToArray, combinat
leetcode
Leetcode helper library, such as create List, Tree from array