Control Structures - C Programming MCQ Questions and Answers

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

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

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

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

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

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

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

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++]);
}

#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;
    }
}

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