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据说某手机公司的笔试题(c语言)，有兴趣的看看

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0楼发表于: 2007-11-22 22:33:48

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据说某手机公司的笔试题(c语言)，有兴趣的看看

1. Write a function that prints the binary representation of an unsigned integer using only putchar() for output

2. Memory Management/Pointer manipulation

Write a function that allows you to remove a substring from a string and returns a new string that uses only the amount of storage needed

Assume: All arguments are always valid

The original string should remain untouched

Use the following function prototype

char * remove_substr(char *str, int pos, int length);

3. Data structures

Implement a circular queue of size n using an array. Use the given fragments for your implementation

typedef stuct QUEUE{

int head, tail;

void * data[N];

}queue;

void init-queue()

{

}

int queue(void *data)

{

}

void * dequeue()

{

}

4. Problem solving/operating systems

A multitasking OS has a producer program that writes data to a buffer and consumer one that reads that data and prints it. Show the work that needs to be done to make sure this works smoothly.

5. C syntax

Identify all the errors in the following piece of C code. Assuming you fix it so it compiles correctly. What would it print? (be sure to specify any assumptions)

void init_array(unsigned int array[])

{

int size = sizeof(array);

int i;

for(i=0; i<size; i++)

array=-1; ,>!%KYD/f
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} ylm #Xa
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void main() w)N~u%
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{ rMWJ
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char * string=”Here is rather long constant to fit my needs”; ^'\JI
Ie4\d2tQ;
char * another_string; &&% oazR=
@eJ6UML"
unsigned int array[11]; mF:Pplf<
C19}Y4r:
init_array(&array[0]); CY~ S{w
) >te|@}o
another_string=(char*)malloc(strlen(string)); -*A1[Z ?
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tm&,u*6$W?
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