Operators and Expressions MCQs

What will be the output of the following program?

void main()
{
      int a, b, c, d;
      a = 3;
      b = 5;
      c = a, b;
      d = (a, b);
      printf("c=%d d=%d", c, d);
}

Which of the following comments about the ++ operator are correct?

What will be the output of this program on an implementation where "int" occupies 2 bytes?

#include <stdio.h>
void main()
{
      int i = 3;
      int j;
      j = sizeof(++i + ++i);
      printf("i=%d j=%d", i, j);
}

Which operator has the lowest priority?

What will be the output?

void main(){ 
    int a=10, b=20;
    char x=1, y=0;
    if(a,b,x,y){ 
        printf("EXAM"); 
    } 
}

What number will z in the sample code given below?

int z, x=5, y= -10, a=4, b=2;
z = x++ - --y*b/a;

What is the output of the following statements?

int i = 0;
printf("%d %d", i, i++);

What is the output of the following statements?

int b=15, c=5, d=8, e=8, a;
a = b>c ? c>d ? 12 : d>e ? 13 : 14 : 15;
printf("%d", a);

What will be the output of the following code fragment?

void main()
{
   printf("%x",-1<<4);
}