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Declarations and Initializations Questions

NA
SHSTTON
187
Solv. Corr.
786
Solv. In. Corr.
973
Attempted
0 M:52 S
Avg. Time

1 / 5

What is the output of the following 'C' program?

#include
#define max
int main(){
printf("%d",max);
return 0;
}


A0

Bnull

CGarbage

DCompilation error

E-1

Answer: Option D

Explanation:

#define max(a,b) ((a).(b)?(a):(b)) This is the complete and correct way to define the function max . In the code its incomplete hence it shows compiler error.

Workspace

NA
SHSTTON
475
Solv. Corr.
482
Solv. In. Corr.
957
Attempted
0 M:35 S
Avg. Time

2 / 5

What is the output of the following 'C' program?

#include
void main() {
int x = 10,y = 10, z = 5, i;
i = x;
printf("%d",i==x);
}


A1

BError

C0

D5

Answer: Option A

Explanation:

The value of x initialised is 10. Also i=x so i=10. Now when comparing condition  (i==x) it will give boolean result that is if the condition is true it will return 1 else it will return 0. So here the condition is true coz x=i hence output is 1.



 

Workspace

NA
SHSTTON
175
Solv. Corr.
577
Solv. In. Corr.
752
Attempted
1 M:14 S
Avg. Time

3 / 5

What is the output of the following program?

#include
void main()
{
int x,y=2,z,a;
if(x=y%2)
z=2;
a=2;
printf("%d %d",z,x);
}


A1..0

B2..0

C2..1

DGarbage-value 0

ECompilation Error

Answer: Option D

Explanation:

The value of y%2 is 0. This value is assigned to x.
The condition will if (0) so z goes uninitialized.

Workspace

NA
SHSTTON
177
Solv. Corr.
508
Solv. In. Corr.
685
Attempted
1 M:51 S
Avg. Time

4 / 5

What is the output of the following 'C' program?

#include
void fun(void)
{
static int s = 0;
s++;
if(s == 10)
return;
fun();
printf("%d ", s);
}

int main(void)
{
fun();
}


A9 times 10

B10 times 10

CCompilation Error

DNone of these

Answer: Option A

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
97
Solv. Corr.
614
Solv. In. Corr.
711
Attempted
0 M:31 S
Avg. Time

5 / 5

What is the output of the following 'C' program?

#include
void main(){
char c=125;
c=c+10;
printf("%d",c);
}


A135

BINF

C-121

DCompilation Error

Answer: Option C

Explanation:

Here char is signed so,the size of char is 1 bytes and its value range are -128 to 127,



and it will be something like below



-128 -127 -126 .......... 0 ....... 126 127 in the cycle. 



Now as per questions c = 125 it is under the above limit.



but when 10 added to it, it becomes 125 10 = 135



125 126 127 -128 -127 -126 -125 -124 -123 -122 -121 



So, count above 135 will fall at -121, so Answer will be -121



If in the question it would have given unsigned char then answer will be 135

Workspace


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