C File Sample - Simple Basic Programs
PART 1: SIMPLE BASIC PROGRAMS
// Program For Simply Input &
Output With & Without Scanf() Function.
#include<stdio.h>
#include<conio.h>
void main()
{
int
num=5,n;
clrscr();
printf("Enter The Value Of 'n'\ :
");
scanf("%d",&n);
printf("\nValue Of 'num' Is = %d
\n\nValue Of 'n'\= %d",num);
getch();
}
Output :
Enter
The Value Of 'n' : 10
Value
Of 'num' Is = 5
Value
Of 'n'= 10
//Program To Print The Constant
Values Of Variables
#include<stdio.h>
#include<conio.h>
void main()
{
int v1=5;
float
v2=5.5;
char
v3='d';
clrscr();
printf("\nValue Of Integer Variable
Is = %d\n",v1);
printf("\nValue Of Float Variable
Is = %f\n",v2);
printf("\nValue Of Character Variable
Is = %c\n",v3);
getch();
}
Output :
Value
Of Integer Variable Is = 5
Value
Of Float Variable Is = 5.500000
Value
Of Character Variable Is = d
// Program To Find Factorial Of a
Number
#include<stdio.h>
#include<conio.h>
void main()
{
int
n,i,fact=1;
clrscr();
printf("Enter Any Number :");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
fact=fact*i;
}
printf("\nFactorial Of %d Is
%d",n,fact);
getch();
}
Output :
Enter Any Number : 5
Factorial Of 5 Is : 120
// Program To Obtain Fibbonacci
Series.
#include<stdio.h>
#include<conio.h>
void main()
{
int
n,s=0,t=1,p=1;
clrscr();
printf("Enter Any Number :");
scanf("%d",&n);
printf("\nFibbonacci Series Is : 1 1
");
while(s<n)
{
s=p+t;
printf("%d ",s);
p=t;
t=s;
}
getch();
}
Output
:
Enter Any Number : 10
Fibbonacci Series Is : 1 1 2 3
5 8 13
// Program To Find Whether The
Given Number Is Prime Or Not If It Is Prime Then Find Out The Smallest Factor
Of That number
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i;
clrscr();
printf("Enter Any Number :");
scanf("%d",&n);
for(i=2;i<=n-1;i++)
{
if(n%i==0)
{
printf("\n%d Is Not A Prime
Number !!!\n",n);
for(i=2;i<=10;i++)
{
if(n%i==0)
{
printf("\nSmallest
Factor Of %d Is %d !!!",n,i);
break;
}
}
break;
}
}
if(i==n)
{
printf("%d Is A Prime Number
!!!",n);
}
getch();
}
Output
:
Enter Any Number : 10
10 Is Not A Prime Number !!!
Smallest Factor Of 10 Is 2 !!!
// Program To Swap Two Numbers By
Using Third Variable
#include<stdio.h>
#include<conio.h>
void main()
{
int
n1,n2,temp;
clrscr();
printf("Enter Any Two Numbers :
");
scanf("%d%d",&n1,&n2);
printf("\nBefore Swaping Value Of
n1=%d & n2=%d\n",n1,n2);
temp=n1;
n1=n2;
n2=temp;
printf("\nAfter Swaping Value Of n1=%d
& n2=%d\n",n1,n2);
getch();
}
Output
:
Enter Any Two Numbers : 10 20
Before Swaping Value Of n1=10
& n2=20
After Swaping Value Of n1=20
& n2=10
// Program To Swap Two Numbers
Without Using Third Variable
#include<stdio.h>
#include<conio.h>
void main()
{
int n1,n2;
clrscr();
printf("Enter Any Two Numbers :
");
scanf("%d%d",&n1,&n2);
printf("\nBefore Swaping Value Of
n1=%d & n2=%d\n",n1,n2);
n1=n1+n2;
n2=n1-n2;
n1=n1-n2;
printf("\nAfter Swaping Value Of n1=%d
& n2=%d\n",n1,n2);
getch();
}
Output :
Enter Any Two
Numbers : 10 20
Before Swaping
Value Of n1=10 & n2=20
After Swaping Value
Of n1=20 & n2=10
// Program To Find The Octal Form
Of The Specified Number
#include<stdio.h>
#include<conio.h>
void main()
{
long
num,a[30],rem;
int
i,j,r,chk=0;
clrscr();
printf("Enter Any Number : ");
scanf("%ld",&num);
i=0;
while(num>0)
{
r=num%10;
if(r>7)
{
printf("It Is Not An Octal
Number !!!\n");
chk=1;
break;
}
else
{
rem=num%8;
a[i]=rem;
i++;
num=num/8;
if(num==0)
{
a[i]=0;
break;
}
}
}
printf("\nOctal
Number Is : ");
if(chk==0)
{
for(j=2;j>=0;j--)
{
printf("%ld",a[j]);
}
}
getch();
}
Output
:
Enter Any Number : 15
Octal Number Is : 017
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