https://leetcode.com/problems/design-browser-history/ Design Browser History - LeetCode Design Browser History - You have a browser of one tab where you start on the homepage and you can visit another url, get back in the history number of steps or move forward in the history number of steps. Implement the BrowserHistory class: * BrowserHisto leetcode.com 파이썬 코드 더보기 class ListNode(object): def _..