摘要：
/** * Given a non-negative integer represented as a non-empty array of digits, plus one to the integer. You may assume the integer do not contain any leading zero, except the number 0 itself. Th... 阅读全文
摘要：
/** * Given a m x n grid filled with non-negative numbers, * find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down o... 阅读全文