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题目描述：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the t... 阅读全文
posted @ 2015-03-19 17:12
SevenForever
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题目描述：Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), re... 阅读全文
posted @ 2015-03-19 16:31
SevenForever
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题目描述Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321数字x不停对10取整，变量result*10加余数，直至数字x==0，那么result就是x的翻转几个特殊情况：1.负... 阅读全文
posted @ 2015-03-19 16:26
SevenForever
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题目描述：Determine whether an integer is a palindrome. Do this without extra space.思路：对数字不停对10取余，并将余数乘10累加，比较剩下的数字与余数的大小，直至相等或者数字对10取余后相等，返回true，否则返回false... 阅读全文
posted @ 2015-03-19 16:23
SevenForever
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题目描述：Rotate an array ofnelements to the right byksteps.For example, withn= 7 andk= 3, the array[1,2,3,4,5,6,7]is rotated to[5,6,7,1,2,3,4].Note:Try to... 阅读全文
posted @ 2015-03-19 11:30
SevenForever
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