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答案：int max = ((a+b)+abs(a-b))/2; 阅读全文
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优先级运算符含义运算对象个数结合顺序1()初等运算符自左至右[]下标运算符->指向结构体成员运算符.结构体成员运算符2！单目运算符1（单目运算符）自右至左~++---负号*指针运算符&sizeof(类型)类型转换运算符3*乘法算数运算符2（双目运算符）自左至右/%4+2（双目运算符）自左至右-5>6... 阅读全文
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PS:注意表达式的运算方向。 阅读全文
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答案：第一段21，第二段12PS：注意运算符的优先级。答案：A 阅读全文
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Description：Implement the following operations of a queue using stacks.push(x) -- Push element x to the back of queue.pop() -- Removes the element fro... 阅读全文
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Description:Given a binary tree, return all root-to-leaf paths.For example, given the following binary tree: 1 / \2 3 \ 5All root-to-leaf pat... 阅读全文
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Description:Given an array of numbersnums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the tw... 阅读全文
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Description：Write a program to check whether a given number is an ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, ... 阅读全文