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微软校长笔试真题及答案(三)

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  题目五:   Questions #1   1) How would you calculate the hash value of a string?   2) List two major requirements of a hashing function   Questions #2: Logical exPssions   Assuming A, B, C are conditions. You can write logical exPssion that yields specific results. For example,   A   B   Result   0   0   0   0   1   1   1   0   1   1   1   1   ExPssion “   A or B” will give above result   A   B   Result   0   0   0   0   1   1   1   0   0   1   1   0   ExPssion “   (not A) and B” will give above result   Please write the simplest logical exPssion that will give the following results (using only   and, or, not operators)   A   B   C   Result   0   0   0   0   0   0   1   1   0   1   0   1   0   1   1   0   1   0   0   1   1   0   1   0   1   1   0   0   1   1   1   1   ExPssion:   A   B   C   Result   0   0   0   0   0   0   1   0   0   1   0   1   0   1   1   1   1   0   0   0   1   0   1   1   1   1   0   0   1   1   1   1   ExPssion:   Please rewrite the following If statements (in C) into just one If statement   For example,   if ( a > 10 )   {   if ( b < 5 )   {   Run();   }   }   can be rewritten as if ( a > 10 && b < 5 ) { Run(); }   Please rewrite the following if statement:   if ( a > 10 && b < 5)   {   if ( a > 15 )   {   Run();   }   }   else if ( b > 6 )   {   Run();   }   Questions #3   Please write a function in C to copy one string to another, while return the largest letter in the string. Please do not use any C runtime function.   char StringCopy( char *pszSrc, char *pszDst, int maxSize )   pszSrc: points to the source string   pszDst: points to the target string, where source string will be copied to   maxSize: max. number of characters allowed to be copied   The following code will display “Z”   char sz[100];   char ch;   ch = StringCopy( “Test Zoo”, sz );   printf( ch );   Questions #4   Binary tree can be used for storing and searching data. Please draw a binary tree, constructed by entering the following numbers in sequence:   8, 3, 10, 50, 9, 20, 1, -5, 2, 70, 35, 45, -10, 49, 0   Please draw a balanced binary tree using the same set of numbers as above.   Questions #5   Please define the data structure required to store a linked list of integer and write a routine to delete an integer from a given linked list of integers.   Questions #6   Please explain the difference between array and link-list.   If you are asked to implement a stack, will you use array, or link-list, or both? What are the limitations of using each one?   Questions #7 (Windows Programming)   What is a message pump in Windows?   Please list names of Windows message that is sent when:   A window is created: ______________________   A window needs to be painted: ______________________   A window is destroyed: ______________________

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