摘要:
Evaluate Reverse Polish NotationEvaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand... 阅读全文
摘要:
Max Points on a LineGiven n points on a 2D plane, find the maximum number of points that lie on the same straight line.SOLUTION 1:全部的点扫一次,然后计算每一个点与其它点... 阅读全文