Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear ...
Given an array of numbersnums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements that appear only once. Example: Note: The order of ...
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Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear ...
Given a non-empty array of integers, every element appears three times except for one, which appears exactly once. Find that single one. Note ...
利用bitwise XOR的特點,n個數(0或1),如果1的個數為奇數,則n個數bitwise XOR結果為1,否則為0 先將所有的數異或,得到的將是x和y以后之后的值n。 找到這個數 ...
An ugly number is a positive integer that is divisible by a, b, or c. Given four integers n, a, b, and c, return the nth ugly number. Example ...
A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down ...
原題地址:http://www.cnblogs.com/x1957/p/3373994.html 題意:Given an array of integers, every element appears twice except for one. Find that single one. ...
Single Number的加強班 有n個數字,除了一個只出現過一次,其他的都出現了3次! 出現兩次我們知道就是xor下就木有啦,那3次怎么搞? 我們還是用二進制位的方式來思考。 那么這些位,除去出現過一次的那個后,其他的都是3的倍數!- -我們把所有位1的個數mod 3,那么剩下 ...
題目: Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear ...