coding

#include <stdio.h>

int main() {

int a = 5;

printf("%d", a++ + ++a);

return 0;

}

• 11

• 12

• 10

• Undefined behavior

#include <stdio.h>

int main() {

printf("%c", 'A' + 3);

return 0;

}

• A

• B

• C

• D

#include <stdio.h>

int main() {

int a=10, b=30;

// swapping

// a = (initial_a - initial_b)

a = a - b;

// b = (initial_a - initial_b) + initial_b = initial_a

b = a + b;

// a = initial_a - (initial_a - initial_b) = initial_b

a = b - a;

// %.2lf displays numbers up to 2 decimal places

printf("After swapping, a = %d", a);

printf("After swapping, b = %d", b);

return 0;

}

• a=30 ,b=10

• After swapping, a = 30

  after swapping, b=10

• After swapping, a = 30After swapping, b = 10

• swapping a=10,b=20

#include <stdio.h>

int main() {

char str[] = "CSE";

printf("%s", str+2);

return 0;

}

• CSE

• SE

• E

• CS

#include <stdio.h>

int main() {

printf("%d", sizeof('A'));

}

• 1

• 2

• 4

• Compiler dependent

#include <stdio.h>

int main() {

int x = 0;

if(x = 5)

printf("Hello");

else

printf("Bye");

}

• Hello

• Bye

• Compiler error

• Nothing

#include <stdio.h>

int main() {

for(int i=0; i<5; i++);

printf("Done");

}

• Done 5 times

• Done once

• Compile error

• Done 4 times

#include <stdio.h>

int main() {

int n = 0, fact = 1;

// Factorial of 0 is always 1

for(int i = 1; i <= n; i++) {

fact *= i;

}

printf("Factorial of %d = %d", n, fact);

return 0;

}

• Factorial of 0=1

• Factorial of %d=1

• Factorial of 0! is =1

• faactoral of zero =1

Value returned?

SELECT SUBSTR('abcdef',2,3)

• abc

• bcd

• def

• None

Output: 30

• printf("%d", 10+20);

• printf("%d", 5*6)

• print("%d", 60/2);

• All of the above