Easy C Quiz - 3

17. What is the Output of the below C-Code.?

#include 
int main() 
{ 
        int i = 0X53F; 
        printf ("%X", i + 1); 
} 

ANS : 540

18. What is the Output of the below C-Code.?

#include 
int main()
{
       int x = 2, y = 0, z;
       z = y && (y | 10);
       printf("%d", z);
}

ANS : 0

19. What is the Output of the below C-Code.?

#include 
int main()
{ 
       int x = 0, y;
       y = (x++, x);
       printf("%d", y);
}

ANS : 1

20. What is the Output of the below C-Code.?

#include 
int main()
{
        int i = 2, j = 3, k, l;
        double a, b;
        k = i / j * j;
        l = j / i * j;
        a = i / j * i;
        b = j / i * i;
        printf("%d\n%d\n", k, l);
        printf("%f\n%f\n", a, b);
}

ANS : 0 3 0.00000 2.00000

21. What is the Output of the below C-Code.?

#include 
int main()
{
    printf("before continue ");
    continue;
    printf("after continue\n");
}

ANS : Compiler time error

22. What is the Output of the below C-Code.?

#include 
int main()
{
    int a = 15;
    printf("%d %d %d", a, ++a, a++);
    return 0;
}

ANS : n.o.a

23. What is the Output of the below C-Code.?

int main()
{
 int x;
 for(x = 1; x <= 5; x++)
{
   switch(x)
   {
      case 1:
         printf("www.");
         continue;
      case 2:
      case 3:
      case 4:
         continue;
      case 5:
         printf("cipheronics");
    }
    printf(".com");
}
return 0;
}

ANS :  www.cipheronics.com

24. What is the Output of the below C-Code.?

#include 
int main()
{
    int y = 2,  z;
    z = (y + (y = 10));
    printf("%d",  z);
}

ANS : 20

25. What is the Output of the below C-Code.?

#include 
int main()
{
    int x = 2, y = 5;
    if (x == 2 && y++)
    {
        if (y==6 || ++x)
        {
            printf("x=%d, y=%d", x, y);
        }
    }
}

ANS : x=2, y=6

26. What is the Output of the below C-Code.?

#include 
int main()
{
    int a = 0X00000000;
    int b = 0X00000008;
    if ((a & b) || (a = b = 0))
    {
        printf("Hello a=%d b=%d\n", a, b);
    }
    printf("World a=%d b=%d\n", a, b);
}

ANS : World  a=0 b=0

27. What is the Output of the below C-Code.?

#include 
int main()
{
    signed char c = 125;
    c = 125 + 10;
    printf("%d", c);
    return 0;
}

ANS :  -121
 
28. What is the Output of the below C-Code.?

#include 
int main()
{
    char c = 280;
    switch(c) {

        case 280: printf("280");
            break;

        case 24: printf("24");
            break;

        default: printf("No surprises");
            break;
    }
}

ANS : 24
 
29. What is the Output of the below C-Code.?

#include 
int main()
{
    unsigned char ch;
    for(ch='0';ch <= 127;ch++)
        printf("%d", ch);
    return 0;
}

ANS : Prints from 48 to 127
 
30. Which loop will run faster

// Code A
for(int i=0; i<100 b="" code="" for="" i="" int="" j="" pre="">
ANS : Code B

   

31. What is the Output of the below C-Code.?

#include 
int main()
{
    int a = -60, b = -34;
    unsigned int c = -24;
    printf("%d", c);
    return 0;
}

ANS : -24

  

32. What is the Output of the below C-Code.?

#include 
void main()
{
    int i = 0;
    do
    {
        printf("Hello");
    } while (i != 0);
}

ANS : Hello

  

33. What is the Output of the below C-Code.?

#include 
int main()
{
    int x=5;
    switch(x*2)
    {
        case 15:
            printf("One");
            break;
        case 10:
            continue;
            printf("Two");
        default:
            printf("Three");
    }
    return 0;
}

ANS : Compiler error can't use continue

  

34. What is the Output of the below C-Code.?

#include 
int main()
{
    int i = 0;
    do
    {
        i++;
        if (i == 2)
            continue;
            printf("In while loop ");
    } while (i < 2);
    printf("%d\n", i);
}

ANS : In while loop 2 



35. What is the Output of the below C-Code.?

#include 
int main()
{
         int x, a = 7, b = 8, c = 2;
         x = a > b ? a > c ? a : c : b > c ? b : c;
         printf("%d", x);
}

ANS : 8



36. What is the Output of the below C-Code.?

#include 
int main()
{
    unsigned char c = 0xFF;
    int d;
    c >>= 4;
    d = c;
    printf("%d\n", d);
}

ANS : 15