摘要：
题目：You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping... 阅读全文
摘要：
题目：Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you optimize your algorithm to use onl... 阅读全文
摘要：
题目：GivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4... 阅读全文