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04/06/2020 02:51:25 PM

Câu hỏi trắc nghiệm ngôn ngữ lập trình C (tiếp theo)

Q11:

int z,x=5,y=-10,a=4,b=2;
z = x++ - --y * b / a;
What number will z in the sample code above contain?
Choice 3 10

Q12:
With every use of a memory allocation function, what function should be used to release allocated memory which is no longer needed?

Q13:
void *ptr;
myStruct myArray[10];
ptr = myArray;
Which of the following is the correct way to increment the variable "ptr"?

Q14:
char* myFunc (char *ptr)
{
ptr += 3;
return (ptr);
}
int main()
{
char *x, *y;
x = "HELLO";
y = myFunc (x);
printf ("y = %s \n", y);
return 0;
}
What will print when the sample code above is executed?

Q15:Code: int z,x=5,y=-10,a=4,b=2;

z=x++ - --y *b/a;

What number will z in the sample code above contain?
Choice 1
5
Choice 2
6
Choice 3
10
Choice 4
11
Choice 5
12
 

Q16:


 If a program compiles fine, but it produces incorrect result, then the program suffers __________.

A. a compilation error

B. a runtime error

C. a logic error


Q17:
With every use of a memory allocation function, what function should be used to release allocated memory which is no longer needed?
Choice 1
unalloc()
Choice 2
dropmem()
Choice 3
dealloc()
Choice 4
release()
Choice 5
free()

Q18:Code: void *ptr;

mystruct myarray[10];

ptr=myarray;

Which of the following is the correct way to increment the variable "ptr"?
Choice 1
ptr = ptr + sizeof(myStruct);
Choice 2
++(int*)ptr;
Choice 3
ptr = ptr + sizeof(myArray);
Choice 4increment(ptr);
Choice 5ptr = ptr + sizeof(ptr);

Q19:

Code: char* myFunc (char *ptr)

{ ptr += 3; return (ptr);

} int main()

{ char *x, *y; x = "HELLO";

 y = myFunc (x);

printf ("y = %s \n", y); return 0;}


What will print when the sample code above is executed?
Choice 1
y = HELLO
Choice 2
y = ELLO
Choice 3
y = LLO
Choice 4
y = LO
Choice 5
x = O
 

 

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