C Programming/Flow Control/Assignments

Question 1

Assume that w=6, x=10, y=6 and z=3. What are the truth values of the following statements?

• w<9
• w!=y
• z>x
• z<=y
• x-6>y*2

Question 2

With the same values of w,x,y and z, what are the values of the following combinations?

• w<9 && w!=y
• x+7>2 || x==6
• !(x-9>1)
• !((x>y) && (x<z))
• (x>7) && !(x>7)
• (x>7) || !(x>7)

Question 3

Under what values of x, y, and z do the following numbered statements get executed? Give the answers in forms like x>y>z.

if(x==y){
  statement 1;
  statement 2;
}
else if(y>z){
  statement 3;
  if(x==z){
    statement 4;
    if(y<z){
      statement 5;
    }
  }
}
else{
  statment 6;
}

Question 4

Under what values of x do the following numbered statements get executed?

switch (x){
case 0:
  statement 1;
  break;
case 1:
  statement 2;
case 2:
  statement 3;
case 4: 
  statement 4;
  break;
case 5:
case 6:
  statement 5;
default:
  statement 6;
}

Answers