C Code Master

What will the result of num1 variable after execution of the following statements?

int j = 1, num1 = 4;

while (++j <= 10)

{

num1++;

}

• 11

• 12

• 13

• 14

What is the output of the following

printf("%d",34+24/12%3*5/2-4);

• 35

• 34

• 32

• 37

c = (n) ? a : b; can be rewritten as

exp1 ? exp2 : exp3;

• if(n){c = a;}else{c = b;}

• if(!n){c = a;}else{c = b;}

• if(n){c = b;}else{c = a;}

• None of the above

What is the output of the following code.

void main()

{

int i = 0;

   

   if (i == 0)

    {

       printf("Hello");

     break;

    }

}

• Hello is printed infinite times

• Hello

• compile time error

• varies

Point out the wrong statement about malloc.

• Allocated memory has undefined value

• Pointer is NULL if memory is not allcoated

• It returns pointer to the allocated space

• It doesn't lead to memory leak if memory is not de allocated

What is the result after execution of the following code if a is 10, b is 5, and c is 10?

if ((a > b) && (a <= c))

a = a + 1;

else

c = c+1;

• a = 10, c = 10

• a = 11, c = 10

• a = 11, c = 11

• a = 10, c = 11

What is the output of this code?

char ch;

ch=A;

printf(“%c”,ch);       

• Compile time error

• A

• 65

• garbage value

Which of the following is an invalid assignment operator?

• A%=10; 

•   A/=10; 

• A|=10   

• none

What is the output of this C code?

int main()

{

int a = 2;

int b = 0;

int y = (b == 0) ? a :(a > b) ? (b = 1): a;

printf("%d\n", y);

}

• 1

• 2

• Compile time error

• Undifined

Comment on the output of this C code?

int main() 

{ 

int a[5] = {1, 2, 3, 4, 5};     

   int i;       

for (i = 0; i < 5; i++)         

   if ((char)a[i] == '5')        

        printf("%d\n", a[i]);   

         else        

        printf("FAIL\n");  

  }

• Program will compile and print the output 5

• Error will generate

• print the ASCII value of 5

• print FAIL for 5 times