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问题: Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without us... 阅读全文
posted @ 2014-10-07 15:28
苍枫露雨
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摘要:
问题: You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 分析: 二维数组a[n][n]顺时针旋转90度,要解决这个问题,无疑,第一件事儿就... 阅读全文
posted @ 2014-10-07 15:18
苍枫露雨
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