摘要：
Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.对每个点，考察其他点与它组成的直线斜率，使用HashMap将斜率与点个数对应起来。需要注意的一点是特殊斜率... 阅读全文
posted @ 2014-09-10 11:35
metalx
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摘要：
Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express... 阅读全文
posted @ 2014-09-10 04:45
metalx
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