Embedded C MCQ

What will be the output of the following program?

#include <stdio.h>

void abc(int num1[], int size)

{

  int a = 0, b = size–1;

  while (a < b)

  {

while (num1[a] == 0 && a < b)

a++;

while (num1[b] == 1 && a < b)

b––;

if (a < b)

{

  num1[a] = 0;

  num1[b] = 1;

  a++;

  b––;

}

  }

}

int main()

{

  int num[] = {1, 0, 1, 0, 1, 0, 1, 1, 0};

  int z = 9, x = 0;

  abc(num, z);

  for (x = 0; x < 9; x++)

  printf("%d ", num[x]);

  getchar();

  return 0;

}

What is the output of the following program ?

main()

{

int u = 1, v = 3;

printf("%d %d",u,v);

funct1(&u,&v);

printf(" %d %d\n",u,v);

}

void funct1(int *pu, int *pv)

{

*pu=0;

*pv=0;

return;

}

What will be the output of the following program?

#include <stdio.h>

struct st1

{

int a;

struct st1 *ptr1 ;

};

main( )

{

struct st1 w1,w2;

w1.a = 251 ;

w2.a = 351 ;

w1.ptr1 = &w2 ;

w2.ptr1 = &w1 ;

printf ( "%d %d", w1.ptr1 –> a, w2.ptr1 –> a ) ;

}

Which of the given types of memories has the following characteristics?

i) It requires a block-sized 'erase' operation before this type of memory can be programmed.

ii) It is used for the storage of a program code.

Choose the correct output of the following C program.

int main( )

{

int i = 3, j = 4, k, l ;

k = abc ( i, j ) ;

l = abc ( i, j ) ;

k=k+3;

l=l+3;

printf ( "%d %d", k, l ) ;

return 0;

}

abc ( int ii, int jj )

{

int kk, ll ;

kk = ii + jj+3 ;

ll = ii * jj+2 ;

return ( kk, ll ) ;

}