hseb solution:program to show type casting concept

Type casting:This is used to convert one data type to another. Particularly, the conversion is done from low level to high level. Here level means total bytes occupied in memory. So the conversion is done from int to float or float to double or int to double and not vice versa.

It's of two types.
           1)Implicit casting::- In this , computer itself converts one data type to another that is called auto conversion.    
// program to show type casting concept

#include<stdio.h>
#include<conio.h>
void main()
{
int a=3,b=2;
float c;
c=a/b;
printf("%f",c);

}
Its output is 1.00. It is incorrect.
So, it should be avoided.

2)Explicit casting:
 In this conversion, we forcefully tell computer to convert one data type to another.It gives us right answer. To use this, we put word float in front of both numbers.
Example,
// program to show type casting concept

#include<stdio.h>
#include<conio.h>
void main()
{
int a=3,b=2;
float c;
c=(float) a/b;
printf("%f",c);

}
Its output is 1.5. It is correct.
Here, the computer, first converts both values(numerator and denominator ) into float then goes for division.
So, it should be used.

hseb solution:program to know a number is even or odd

First part:
Algorithm to know a number is even or odd
step 1:read/input a number 'x'
step 2:Let y= remainder obtained after dividing x by 2
step 3:If y=0 then
          display it is an even
         else
         display it is an odd
step 4:stop

second part:-

Flowchart:-

//'C' program to know a number is even or odd
#include<stdio.h>
#include<conio.h>
void main()
{
int x;
printf("enter a number\n");
scanf("%d",&x);
if(x%2==0)
{
printf("it is an even number");
}
else
{
printf("it is an odd number\n");
}
getch();
}