This document contains source code for 14 programs written in C programming language by Sumant Diwakar as part of a practical file for a Computer Programming Lab course. The programs include conversions between Fahrenheit and Celsius temperatures, checking if a number is a perfect square, sorting numbers in ascending and descending order, checking vowels, calculating factorials, and other numerical calculations and patterns. Each program section contains the source code and output for that program.

1. BIRLA INSTITUTE OF TECHNOLOGY, MESRA
DEPARTMENT OF REMOTE SNSING
A
PRACTICAL FILE
ON
“COMPUTER PROGRAMMING LAB”
(TRS 2022)
MASTER OF TECHNOLOGY
(REMOTE SENSING)
(20012-2014)
SUBMITTED BY-SUMANT
KR. DIWAKAR

2. C Practical File
Program:
Write a Program in C to convert Temperature from Fahrenheit
to Celsius.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
float Fahrenheit, Celsius;
clrscr();
printf("Enter Temperature in Fahrenheit: ");
scanf("%f",&Fahrenheit);
Celsius = 5.0/9.0 * (Fahrenheit-32);
printf("nn Temperature in Fahrenheit = %.2f",
Fahrenheit);
printf("nn Temperature in Celsius = %.2f",
Celsius);
getch();
}
Output:
Sumant Diwakar

3. C Practical File
Program:
Write a Program in C to check the number for Perfect Square.
Source Code:
#include <stdio.h>
#include <conio.h>
void main()
{
int a, n;
clrscr();
printf("Enter a number: ");
scanf("%d", &n);
for(a = 0; a <= n; a++)
{
Sumant Diwakar
if (n == a * a)
{
printf("nntYES, Number is Perfect Square
Number");
}
}
printf("nntNO, Not a Perfect square number");
getch();
}
Output:

4. C Practical File
Program:
Write a Program in C to arrange numbers in Ascending and
Descending Order.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,s,temp,a[20];
clrscr();
printf("Enter total elements: ");
scanf("%d",&s);
printf("nnEnter %d elements: ",s);
for(i=0;i<s;i++)
scanf("%d",&a[i]);
for(i=1;i<s;i++){
temp=a[i];
j=i-1;
while((temp<a[j])&&(j>=0)){
a[j+1]=a[j];
Sumant Diwakar
j=j-1;
}
a[j+1]=temp;
}
printf("nAscending Ordern");
for(i=0;i<s;i++)
printf("t %d",a[i]);
printf("nDescending Ordern ");
for(i=s-1;i>=0;i--)
printf("t %d",a[i]);
getch();

5. C Practical File
}
Output:
Sumant Diwakar

6. C Practical File
Program:
Write a Program in C to check the entered uppercase characters
for vowel using switch statement.
Source Code:
#include <stdio.h>
void main()
{
char ch;
clrscr();
printf("nInput a character in UPPERCASE only: ");
scanf("%c", &ch);
switch(ch)
{
Sumant Diwakar
case 'A':
case 'E':
case 'I':
case 'O':
case 'U':
printf("nt%c is a vowel.n", ch);
break;
default:
printf("nt%c Not in UPPERCASEn", ch);
}
getch();
}
Output:

7. C Practical File
Program:
Write a Program in C to find the Factorial of a number.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int f=1,i,n;
clrscr();
printf("Enter a numbern");
scanf("%d",&n);
while(i<=n)
{
Sumant Diwakar
f=f * i;
i=i+1;
}
printf("Factorial of %d is %d",n,f);
getch();
}
Output:

8. C Practical File
Program:
Write a Program in C to find the number and their sum between
100 to 200 which are divisible by 7.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int n1,n2,sum=0;
clrscr();
printf("nThe Number which are divisible by 7
arenn");
for(n1=100; n1<200; n1++)
{
Sumant Diwakar
if(n1%7==0)
{
printf("%dt",n1);
sum=sum+n1;
}
}
printf("nSum of numbers that are divisible by 7 is
= %d",sum);
getch();
}
Output:

9. C Practical File
Program:
Write a Program in C to find the number is prime number or
Composite number.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int n,i,np=0; //np is boolean operator (true/false)
clrscr();
printf("n Enter a number :");
scanf("%d",&n);
for(i=2;i<=(n-1);i++)
{
Sumant Diwakar
if(n%i==0)
{
np=1;
break; //come out of for loop
}
}
if(np==1) // in if statement np=1 ,it confirms that
number is composite.
{
printf("nn%d is composite number.",n);
}
else
{
printf("nn%d is a prime number.",n);
}
getch();
}

10. C Practical File
Output:
Sumant Diwakar

11. C Practical File
Program:
Write a Program in C to find the Average of Five Numbers.
Source Code:
# include <stdio.h>
#include <conio.h>
void main()
{
int first, second, third, fouth, fifth, sum=0, avg=0;
clrscr();
printf("Enter First Number:");
scanf("%d", &first);
printf("nnEnter Second Number:");
scanf("%d", &second);
printf("nnEnter Third Number:");
scanf("%d", &third);
printf("nnEnter Fourth Number:");
scanf("%d", &fourth);
printf("nnEnter Fifth Number:");
scanf("%d", &fifth);
sum = (first+second+third+fourth+fifth);
avg = sum/5;
printf("nntThe Average of Five Number is : %d",avg);
getch();
}
Output:
Sumant Diwakar

12. C Practical File
Program:
Write a Program in C to find the Biggest and smallest number
from the given list of numbers.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int n,big,sml,i,totalNumber;
clrscr();
printf("n How many number you will enter : ");
scanf("%d",&totalNumber);
for (i=0;i<totalNumber;i++)
{
printf("n Enter number %d : ",i+1);
scanf("%d",&n);
if(i==0)
{
big=sml=n;
}
if(big<n) big=n;
if(sml>n) sml=n;
}
printf("nnBiggest number is: %d",big);
printf("nnSmallest number is : %d",sml);
getch();
}
Sumant Diwakar

13. C Practical File
Output:
Sumant Diwakar

14. C Practical File
Program:
Write a Program in C to find the sum of a digit of a number.
Source Code:
#include<stdio.h>
void main()
{
int num,sum=0,r;
printf("Enter a number: ");
scanf("%d",&num);
while(num){
r=num%10;
num=num/10;
sum=sum+r;
}
printf("Sum of digits of number: %d",sum);
getch();
}
Output:
Sumant Diwakar

15. C Practical File
Program:
Write a Program in C to enter three digit numbers and find the
sum of the digits.
Source Code:
#include<stdio.h>
void main()
{
int num,sum=0,r;
clrscr();
printf("Enter a #-digit number[100-999]: ");
scanf("%d",&num);
if(num>999 && num<100)
printf("nnSorry!, Number Out of Range ");
else
{
while(num)
{
Sumant Diwakar
r=num%10;
num=num/10;
sum=sum+r;
}
printf("nSum of digits of number: %d",sum);
}
getch();
}
Output:

16. C Practical File
Program:
Write a Program in C to generate the Fibonacci Series.
(0, 1, 1, 2, 3, 5, 8…)
Source Code:
#include <stdio.h>
void main()
{
int n, first = 0, second = 1, next, c;
clrscr();
printf("Enter the number of terms:");
scanf("%d",&n);
printf("nnFirst %d terms of Fibonacci series are :-
nn",n);
for ( c = 0 ; c < n ; c++ )
{
Sumant Diwakar
if ( c <= 1 )
next = c;
else
{
next = first + second;
first = second;
second = next;
}
printf("%d ",next);
}
getch();
}

17. C Practical File
Output:
Sumant Diwakar

18. C Practical File
Program:
Write a Program in C to display the following patterns using
loop.
Source Code:
1)
#include <stdio.h>
#include <conio.h>
void main()
{
int i,j,limit;
clrscr();
printf("nEnter Limit:");
scanf("%d",&limit);
for(i=0; i<limit; i++)
{
Sumant Diwakar
for(j=0; j<=i; j++)
{
printf(" * ");
}
printf("n");
}
getch();
}
2) *
* *
* * *
* * * *
* * * * *
1) *
* *
* * *
* * * *
* * * * *

19. C Practical File
Output:
2)
#include <stdio.h>
#include <conio.h>
void main()
{
int i,j,k,limit;
clrscr();
printf("nEnter Limit: ");
scanf("%d",&limit);
for(i=0; i<limit; i++)
for(i=1; i<=limit; i++)
{
Sumant Diwakar
for(j=limit; j>=i; j--)
{
printf(" ");
}
for(k=1; k<=i; k++)
{
printf("*");
}
printf("n");
}
getch();
}

20. C Practical File
Output:
Sumant Diwakar

21. C Practical File
Program:
Write a Program in C to find factorial of given number using
recursive function.
Source Code:
#include<stdio.h>
main()
{
int a,b;
clrscr();
printf("Enter the value for A and Bn");
scanf("%d %d",&a,&b);
printf("nBefore Swaping:nntA= %d, B=%d",a,b);
swap(a,b);
getch();
}
swap(int x,int y)
{
int temp;
temp=x;
x=y;
y=temp;
printf("nnAfter Swaping:nntA=%d, B=%d",x,y);
}
Output:
Sumant Diwakar

22. C Practical File
Sumant Diwakar

23. C Practical File
Program:
Write a Program in C to find factorial of given number using
recursive function.
Source Code:
#include<stdio.h>
main()
{
int a, fact;
printf("nEnter any number: ");
scanf ("%d", &a);
fact=rec (a);
printf("nFactorial Value = %d", fact);
}
rec (int x)
{
int f;
Sumant Diwakar
if (x==1)
return (1);
else
f=x*rec(x-1);
return (f);
}

24. C Practical File
Output:
Sumant Diwakar

25. C Practical File
Program:
Write a Program in C to print Identity Matrix.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int a[20][20],i,j,row,col;
clrscr();
printf("Enter Square Matrix Range:");
scanf("%d",&row);
col=row;
for(i=0;i<row;i++)
{
Sumant Diwakar
for(j=0;j<col;j++)
{
if(i==j)
{
a[i][j]=1;
}
else
{
printf("Enter matrix value:");
scanf("%d", &a[i][j]);
}
}
}
printf("nn identity matrix n");
for(i=0;i<row;i++)
{
for(j=0;j<col;j++)
{
printf("t%d", a[i][j]);
}
printf("n");
}
getch();
}

26. C Practical File
Output:
Program:
Write a Program in C to find the addition of two 3 x 3 matrices.
Sumant Diwakar

27. C Practical File
Source Code:
#include<stdio.h>
Void main()
{
int a[3][3],b[3][3],c[3][3],i,j;
clrscr();
printf("Enter the First matrix->");
for(i=0;i<3;i++)
Sumant Diwakar
for(j=0;j<3;j++)
scanf("%d",&a[i][j]);
printf("nEnter the Second matrix->");
for(i=0;i<3;i++)
for(j=0;j<3;j++)
scanf("%d",&b[i][j]);
printf("nThe First matrix isn");
for(i=0;i<3;i++)
{
printf("n");
for(j=0;j<3;j++)
printf("%dt",a[i][j]);
}
printf("nThe Second matrix isn");
for(i=0;i<3;i++)
{
printf("n");
for(j=0;j<3;j++)
printf("%dt",b[i][j]);
}
for(i=0;i<3;i++)
for(j=0;j<3;j++)
c[i][j]=a[i][j]+b[i][j];
printf("nThe Addition of two matrix isn");
for(i=0;i<3;i++){
printf("n");
for(j=0;j<3;j++)
printf("%dt",c[i][j]);
}

28. C Practical File
getch();
}
Output:
Sumant Diwakar

29. C Practical File
Program:
Write a Program in C to find the multiplication of two matrices.
Source Code:
#include<stdio.h>
#include<conio.h>
void main()
{
int a[5][5],b[5][5],c[5][5],i,j,k,sum=0,m,n,o,p;
clrscr();
printf("nEnter the row and column of first matrix");
scanf("%d %d",&m,&n);
printf("nEnter the row and column of second matrix");
scanf("%d %d",&o,&p);
if(n!=o)
{
Sumant Diwakar
printf("Matrix mutiplication is not possible");
printf("nColumn of first matrix must be same
as row of second matrix");
}
else
{
printf("nEnter the First matrix->");
for(i=0;i<m;i++)
for(j=0;j<n;j++)
scanf("%d",&a[i][j]);
printf("nEnter the Second matrix->");
for(i=0;i<o;i++)
for(j=0;j<p;j++)
scanf("%d",&b[i][j]);
printf("nThe First matrix isn");
for(i=0;i<m;i++){
printf("n");
for(j=0;j<n;j++){
printf("%dt",a[i][j]);
}
}
printf("nThe Second matrix isn");

30. C Practical File
for(i=0;i<o;i++){
printf("n");
for(j=0;j<p;j++){
printf("%dt",b[i][j]);
}
}
for(i=0;i<m;i++)
for(j=0;j<p;j++)
c[i][j]=0;
for(i=0;i<m;i++){ //row of first matrix
for(j=0;j<p;j++){ //column of second matrix
sum=0;
for(k=0;k<n;k++)
Sumant Diwakar
sum=sum+a[i][k]*b[k][j];
c[i][j]=sum;
}
}
}
printf("nThe multiplication of two matrix isn");
for(i=0;i<m;i++){
printf("n");
for(j=0;j<p;j++){
printf("%dt",c[i][j]);
}
}
getch();
}

31. C Practical File
Output:
Sumant Diwakar

32. C Practical File
Program:
Write a Program in C to find the length of a string and count the
number of vowel in it.
Source Code:
#include <stdio.h>
#include <string.h>
void main()
{
Sumant Diwakar
char str[50];
int vowels=0;
int consonants=0;
int space=0;
int len,i;
printf("enter the string n n");
gets(str);
len=strlen(str);
for(i=0; i< len ;i++)
{
if(str[i]=='a'||str[i]=='A'||str[i]=='i'||str[i]=='I'||str[i]
=='E'||str[i]=='e'||str[i]=='O'||str[i]=='o'||str[i]=='U'||st
r[i]=='u')
vowels++;
else
{
consonants++;
}
if(str[i]==' ')
{
space ++;
}
}

33. C Practical File
printf("Number of Vowels %d and Number of Consonants
%d",vowels,consonants);
Sumant Diwakar
printf(" n Number of Spaces :% d",space);
getch();
}
Output:

34. C Practical File
Program:
Write a Program in C to check the given string is Palindrome or
not .
Source Code:
# include <stdio.h>
# include <conio.h>
# include <string.h>
void main()
{
char str[20], rev[20] ;
int i, j, l ;
clrscr() ;
printf("Enter a string : ") ;
scanf("%s", str) ;
for(l = 0 ; str[l] != '0' ; l++) ;
for(i = l - 1, j = 0 ; i >= 0 ; i--, j++)
rev[j] = str[i] ;
rev[j] = '0' ;
if(strcmp(str, rev) == 0)
printf("nThe given string is a palindrome") ;
else
printf("nThe given string is not a palindrome") ;
getch() ;
}
Output:
Sumant Diwakar