C Programming PYQ ISRO QUIZ

The following three 'C' language statements is equivalent to which single statement? y=y+1; z=x+y; x=x+1

Write the output of the following C program

#include <stdio.h>

  int main (void)
  {
  int shifty;
  shifty = 0570;
  shifty = shifty >>4;
  shifty = shifty <<6;
  printf("the value of shifty is %o",shifty);
  }

What does the following program do when the input is unsigned 16-bit integer?

#include 
main( )
{
unsigned int num;
int i;
scanf (“%u”, &num);
for ( i = 0; i<16; i++)
{
printf (“%d”, (num << i & 1 << 15 ) ? 1:0);
}
}

Consider the following program fragment i=6720; j=4; while (i%j)==0 { i=i/j; j=j+1; } On termination j will have the value

Consider the following program fragment

if(a > b)
if(b > c)
s1;
else s2;

s2 will be executed if

The for loop

for (i=0; i<10; ++i)
printf("%d", i&1);

prints:

What is the output of the following C code?

#include 
int main()
{
int index;
for(index=1; index<=5; index++)
{
printf("%d", index);
if (index==3)
continue;
}
}

Consider the following C code segment:

#include 
main()
{
    int i, j , x ;
    scanf("%d", &x);
    i = 1 ; j = 1;
    while ( i< 10 ) {
          j = j * i;
          i = i + 1;
          if (i == x) break ;
          }
 }

For the program fragment above, which of the following statements about the variables i and j must be true after execution of this program? [!(exclamation) sign denotes factorial in the answer]

Consider the following pseudocode: 
 

x:=1;
i:=1;
while (x ? 500)
begin
x:=2x ;
i:=i+1;
end

What is the value of i at the end of the pseudocode?
 

How many lines of output does the following C code produce? 
 

#include<stdio.h>
float i=2.0;
float j=1.0;
float sum = 0.0;
main()
{
    while (i/j > 0.001)
    {
        j+=j;
        sum=sum+(i/j);
        printf("%f\n", sum);
    }
}