微软2013最暑期实习生笔试题.docx

答案仅供参考-更改了部分个人认为不严谨的答案，以及一点点注释1. Which of the following calling convention(s) support(s) supportvariable-length parameter(e.g. printf)?(3 Points) A. cdecl? B. stdcall C. pascalD. fastcall注：可变参数函数需要由调用者清栈，因为当前函数并不知道要有多少参数被传入，所以必须用cdcel2. Whats the output of the following code?(3 Points)class?A??{??public:???virtual?void?f()???{???coutA::f()endl;???}???void?f()?const???{???coutA::f()?constendl;???}??};???class?B:?public?A??{??public:???void?f()???{???coutB::f()endl;???}???void?f()?const???{???coutB::f()?constendl;???}??};???void?g(const?A*?a)??{???a-f();??}???int?main()??{???A*?a?=?new?B();???a-f();???g(a);???delete?a?;??}?? A. B::f()B::f()const B. B::f()A::f()const ? C. A::f()B::f()constD.?A::f()A::f()const?注：const类指针只可以调用const类方法3. What is the difference between a linked list and an array?(3 Points) A. Search complexity when both are sorted B. Dynamically add/remove C. Random access efficiency D. Data storage type4. About the Thread and Process in Windows, which description(s) is(are) correct:(3 Points) A. One application in OS must have one Process, but not a necessary to have one Thread B. The Process could have its own Stack but the thread only could share the Stack of its parent Process C. Thread must belongs to a Process D. Thread could change its belonging Process5. What is the output of the following code?(3 Points){???int?x?=?10?;???int?y?=?10?;???x?=?x++?;???y?=?++y?;???printf(%d,?%d\n,x,y);??}?? A. 10, 10? B. 10, 11 C. 11, 10D. 11, 11注：这是道错题。根据ANSI/ISO C标准描述:“在上一个和下一个序列点之间，一个对象所保存的值至多只能被表达式的求值修改一次，而且只有在确定将要保存的值的时候才能访问前一个值。”像x=x++,y=++y这样两次修改同一个变量的表达式是绝不允许的（或者，无论如何都无需明确定义，也就是说，无需知道它们到底做什么，编译器也不必支持它们。）引用至《你必须知道的495个C语言问题》，人民邮电出版社，37页这种题多见于谭浩强老爷爷出的C教程书。可想而知微软程序员也是看这本书长大的。6. For the following Java or C# code(3 Points)int?[][]?myArray3?=??new?int[3][]{???new?int[3]{5,6,2},???new?int[5]{6,9,7,8,3},???new?int[2]{3,2}};?? What will myArray3[2][2]? returns? A. 9 B. 2 C. 6 D. overflow7. Please choose the right statement about const usage:(3 Points) A. const int a; /