Control Structures
practice.

What will be the output of given program?

#include<stdio.h>
void main()
{
	int a=1;
	if("%d=hello", a);
}

What will be the output of given program?

#include<stdio.h>
void main()
{
	int a=3;
	for(;a;printf("%d ", a--);
}

What will be the output of given program?

#include<stdio.h>
void main()
{
      int i=1, j=-1;
      if((printf("%d", i)) < (printf("%d", j))) 
            printf("%d", i);
      else 
            printf("%d", j);
}

What will be the output of the following piece of code?

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

What will be the output of the following code?

#include<stdio.h>
void main()
{
    int s=0;
    while(s++<10)
    {
        if(s<4 && s<9)
        continue;
        printf("%dt", s);
    }
}

Which command is used to skip the rest of a loop and carry on from the top of the loop again?

What is the output of the following program?

#include<stdio.h>
int c[10] = {1,2,3,4,5,6,7,8,9,10};   
main()
{
   int a, b=0;
   for(a=0;a<10;++a)
      if(c[a]%2 == 1)
         b+=c[a];
   printf("%d", b);
}

What is the output of the following statements?

for(i=10; i++; i<15)
   printf("%d ", i);

The type of the controlling expression of a switch statement cannot be of the type ........

What's wrong in the following statement, provided k is a variable of type int?
for(k = 2, k <=12, k++)

Find the output of the following program.

#include<stdio.h>
void main()
{
   int y=10;
   if(y++>9 && y++!=10 && y++>11)
      printf("%d", y);
   else
      printf("%d", y);
}

What will be the value of sum after the following program is executed?

void main()
{
   int sum=1, index = 9;
   do{
      index = index – 1;
      sum *= 2;
   }while( index > 9 );
}

What is the right choice, if the following loop is implemented?

void main()
{
   int num = 0;
   do{
      --num;
      printf("%d", num);
   }while( ++num >= 0 );
}

What will be the final value of the digit?

void main()
{
   int digit = 0;
   for( ; digit <= 9; )
   digit++;
   digit  *= 2;
   --digit;
}

What will be the following code's output if choice = 'R'?

switch(choice)
{
   case 'R' : printf("RED");
   case 'W' : printf("WHITE");
   case 'B' : printf("BLUE");
   default  : printf("ERROR");break;
}

Consider the following program fragment:

for(c=1, sum=0; c <= 10; c++)
{
   scanf("%d", &x);
   if( x < 0 ) continue;
   sum += x;
}
What would be the value of sum for the input 1, -1, 2, -2, 3, -3, 4, -4, 5, -5

What will be printed if the following code is executed?

void main()
{
   int x=0;
   for( ; ; )
   {
      if( x++ == 4 ) break;
      continue;
   }
   printf("x=%d", x);
}

Consider the following code:

void main()
{
   int a[5] = {6,8,3,9,0}, i=0;
   if(i != 0)
   {
      break;
      printf("%d", a[i]);
   }
   else
      printf("%d", a[i++]);
}

What is the output of the above program?

What will be the output of the following C code? (Assuming that we have entered the value 1 in the standard input)

#include <stdio.h>
void main()
{
    int ch;
    printf("enter a value between 1 to 2:");
    scanf("%d", &ch);
    switch (ch, ch + 1)
    {
       case 1:
          printf("1\n");
          break;
       case 2:
          printf("2");
          break;
    }
}

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    int i = 0;
    do
    {
        printf("Hello");
    } while (i != 0);
}