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题目：A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a peak element and return its ind... 阅读全文
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今天做项目中，用background显示了二维码和一些文字，但显示到页面上时，二维码和图片都变得模糊了。于是将图片调整、放大，但在放大后，作为背景图片的它则显示不全，无奈之下用了backgroung-size。但background-size在IE下不兼容，故最后使用了img+width+hei... 阅读全文
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题目：According to theWikipedia's article: "TheGame of Life, also known simply asLife, is a cellular automaton devised by the British mathematician John ... 阅读全文
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题目：Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your max... 阅读全文