Programming Languages

‘C’ program to add two matrices of order m X n.

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 6 Sep 2022 21:17:00 +0530

C File =>

/* Write a ‘C’ program to add two matrices

of order mXn */

#include<stdio.h>

int main()

{

int m,n,i,j,mat1[20][20];

int mat2[20][20],add[20][20];

printf("\n Enter no. of rows : ");

scanf("%d",&m);

printf("\n Enter no. of cols : ");

scanf("%d",&n);

printf("\n Input Matrix1 : \n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d : ", i+1,j+1);

scanf("%d",&mat1[i][j]);

}

printf("\n Input Matrix2 : \n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d : ", i+1,j+1);

scanf("%d",&mat2[i][j]);

}

printf("\n\n Addition Matrix is :\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

add[i][j]=mat1[i][j]+mat2[i][j];

printf("%d\t",add[i][j]);

}

printf("\n");

}

return 0;

}

Preprocessor in 'C'

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 6 Sep 2022 21:16:00 +0530

Preprocessor :

As the name suggests a processor which performs pre-processing or some processing on a program before submitting it for actual compilation is called preprocessor.
For example inclusion of header files in a program.

Role of Pre-processor :

Program written in C language is given to preprocessor.
Preprocessor checks of preprocessor directives if any present in given program. It performs specific actions according to directive instructions and submit modified code to the compiler.
Compiler then compiles it and produces object code which is then executed with the help of linker.

Format of preprocessor directive :

Preprocessor directive is an instruction given to preprocessor to perform certain task.
All preprocessor directives begins with # followed by identifier and directive name respectively.
For example #include ,#define ,#undef etc. In C preprocessor allows us to do inclusion of header files, expansion of macros, compilation by condition and line control.

File inclusion directive (#include) :

#include is basically used to include different header files in our program.

Syntax :
#include<filename>
or
#include "filename"

Both of above have same purpose.
Difference between them is that when we use first syntax then preprocessor search for particular file in systems directory whereas if we use second syntax then preprocessor first search for file in current working directory followed by searching in systems directory.

Macro substitution directive, argumented and nested macro :

Macro substitution is a process of replacing or substituting macro name by its definition also called macro expansion.
Macro can be simple macro or argumented macro.
Simple macro has

syntax : #define identifier value

In simple macro substitution preprocessor just replaces occurence of identifier by its value.
Simple macros are mostly used to define widely used constants in a program.
For example #define PI 3.142
Here everyoccurence of PI will get replaced by 3.142.
Consider following program to illustrate simple macro

#include<stdio.h>
#define PI 3.142
int main()
{
int r;
float area;
printf("\n Enter radius of circle : ");
scanf("%d",&r);
//using simple macro
area = 2*PI*r;
printf("\n Area of circle is %f",area);
return 0;
}

Output :
Enter radius of circle : 4
Area of circle is 25.136000

Macro having argument in its definition is called argumented macro.
Syntax:

#define identifier(arg1,arg2,...) string

string can be anything which should be returned as output or will be replaced by identifier.
For example : #define square(n) n*n;
It will replace all occurrences of sqare(n) in a program by n*n.
Consider following program to illustrate argumented macro

#include<stdio.h>
#define square(n) n*n
int main()
{
int m;
printf("\n Enter any number : ");
scanf("%d",&m);
printf("\n Square of %d is %d",m,square(m));
return 0;
}

Output :
Enter any number : 5
Square of 5 is 25

A macro having name of another macro in its definition is called nested macro.
For example consider following program

#include<stdio.h>
#define PI 3.142
#define circle_area(r) 2*PI*r
int main()
{
int rad;
float area;
printf("\n Enter radius : ");
scanf("%d",&rad);
area = circle_area(rad);
printf("\n Area of circle = %f",area);
return 0;
}

Output :
Enter radius : 6
Area of circle = 37.703999

Note : macro circle_area is having macro PI nested with in it.

Macro versus Function :

Assignment III - Basic 'C'

noreply@blogger.com (Ms. Vijaya H. Pise) — Wed, 3 Jun 2020 17:34:00 +0530

Assignment III

Write a ‘C’ program to add two matrices of order m X n.

Write a ‘C’ program to check if a n X n matrix is symmetric.

Write a ‘C’ program to read a matrix and calculate the sum of its diagonal elements.

Write a ‘C’ program to subtract two matrices of order m Xn.

Write a ‘C’ program to read a matrix and display its transpose.

Write a ‘C’ program to check if a matrix is upper triangular.

Write a ‘C’ program with menu to perform the following operations on a character. 1. Check uppercase or lowercase 2. Display its ASCII value 3. Display its next and previous character 4. Exit.

Write a menu driven program to perform the following operations on an integer. Write separate functions. 1. Check if is even or odd 2. Check if it is prime 3. Exit

Accept two numbers and perform the following operations till the user selects Exit. 1. Maximum 2. Display all numbers between the two 3. Sum and average 4. EXIT

Write a function in ‘C’, which accepts a character and integer n as parameter and displays the next 'n' characters.

Write a ‘C’ program, which accepts annual basic salary of an employee and calculates and displays the Income tax as per the following rules. Basic: < 150000 Tax = 0 , 150000 to 300000 Tax = 20%, > 300000 Tax = 30%

‘C’ program, which accepts annual basic salary of an employee and calculates and displays the Income tax

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 2 Jun 2020 11:51:00 +0530

C File =>

/* Write a ‘C’ program, which accepts annual basic salary of an employee and calculates and displays the Income tax as per the following rules.

Basic: < 1,50,000 Tax = 0

1,50,000 to 3,00,000 Tax = 20%

> 3,00,000 Tax = 30% */

#include<stdio.h>

int main()

{

int sal;

float tax;

printf("\n Enter basic salary : ");

scanf("%d",&sal);

if(sal<150000)

printf("\n Income tax for given salary : 0 Rs.");

else if(sal>150000 && sal<=300000)

{

tax=sal*0.2;

printf("\n Income tax = %f",tax);

}

else if(sal>300000)

{

tax=sal*0.3;

printf("\n Income tax = %f",tax);

}

return 0;

}

Accept two numbers and perform the following operations till the user selects Exit.

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 2 Jun 2020 11:35:00 +0530

C File =>

/* Accept two numbers and perform the following operations till the user

selects Exit.

i. Maximum

ii. Display all numbers between the two

iii. Sum and average

iv. EXIT */

#include<stdio.h>

#include<stdlib.h>

int main()

{

int n1,n2,i,ch,sum;

float avg;

printf("\n Enter number1 : ");

scanf("%d",&n1);

printf("\n Enter number2 : ");

scanf("%d",&n2);

printf("\n Menu : \n1. Maximum");

printf("\n 2. Display all numbers between %d and %d",n1,n2);

printf("\n 3. Sum and Average of two");

printf("\n 4. Exit\n Enter your choice (1-4) : ");

scanf("%d",&ch);

switch(ch)

{

case 1: if(n1>n2)

printf("\n Maximum = %d",n1);

else

printf("\n Maximum = %d",n2);

break;

case 2: for(i=n1;i<=n2;i++)

printf("%d\t",i);

break;

case 3: sum=n1+n2;

avg=(n1+n2)/2;

printf("\n Sum = %d and Average = %f",sum,avg);

break;

case 4: exit(0);

break;

default: printf("\n invalid input..");

}

return 0;

}

Menu driven program to perform operations on an integer.

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 2 Jun 2020 11:29:00 +0530

C File =>

/* Write a menu driven program to perform the following operations on an

integer. Write separate functions.

1. Check if is even or odd

2. Check if it is prime

3. Exit */

#include<stdio.h>

#include<stdlib.h>

int main()

{

int n,ch,i;

void chk_even(int n)

{

if(n%2==0)

printf("\n Number is EVEN..");

else

printf("\n Number is ODD...");

}

void chk_prime(int n)

{

int flag=1;

for(i=2;i<n;i++)

{

if(n%i==0)

{

flag=0;

break;

}

if(flag==0)

printf("\n Number is NOT prime..");

else

printf("\n Number is PRIME..");

}

printf("\n Enter an integer : ");

scanf("%d",&n);

printf("\n Menu driven operations:\n 1. Check if is even or odd\n

2. Check if it is prime\n 3. Exit");

printf("\n Enter your choice (1-3) : ");

scanf("%d",&ch);

switch(ch)

{

case 1: chk_even(n);

break;

case 2:chk_prime(n);

break;

case 3:exit(0);

break;

default : printf("\n Invalid choice..");

}

return 0;

}

‘C’ program with menu to perform operations on a character.

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 2 Jun 2020 11:21:00 +0530

C File =>

/*Write a ‘C’ program with menu to perform the following operations on a

character.

1. Check uppercase or lowercase

2. Display its ASCII value

3. Display its next and previous character

4. Exit */

#include<stdio.h>

#include<stdlib.h>

#include<ctype.h>

int main()

{

int ch;

char c;

printf("\n Enter any character : ");

scanf("%c",&c);

printf("\n Menu : \n1. Check uppercase or lowercase");

printf("\n 2. Display its ASCII value");

printf("\n 3. Display its next and previous character\n 4. Exit");

printf("\n Enter your choice (1-4)");

scanf("%d",&ch);

switch(ch)

{

case 1: if(isupper(c))

printf("Uppercase character");

else if(islower(c))

printf("Lowercase character");

else

printf("Neither lowercase nor uppercase");

break;

case 2:printf("\n ASCII value of characher %c is %d",c,c);

break;

case 3:printf("\n Previous character of %c is %c",c,c-1);

printf("\n Next character %c is %c",c,c+1);

break;

case 4: exit(0);

break;

default : printf("\n Invalid input...");

}

return 0;

}

‘C’ program to check if a matrix is upper triangular.

noreply@blogger.com (Ms. Vijaya H. Pise) — Tue, 2 Jun 2020 11:15:00 +0530

C File =>

/* Write a ‘C’ program to check if a matrix is upper triangular. */

#include<stdio.h>

int main()

{

int i,j,r,c,mat[30][30],flag=1;

printf("\n Enter number of rows in matrix : ");

scanf("%d",&r);

printf("\n Enter number of cols in matrix : ");

scanf("%d",&c);

//Accepting matrix

for(i=0;i<r;i++)

{

for(j=0;j<c;j++)

{

printf("\n Enter matrix element : ");

scanf("%d",&mat[i][j]);

}

//checking upper triangular

for(i=0;i<r;i++)

{

for(j=0;j<c;j++)

{

if(r>c && mat[i][j]!=0)

{

flag=0;

break;

}

if(flag==0)

printf("\n Matrix is NOT upper triangular..");

else

printf("\n Matrix is upper triangular.. ");

return 0;

}

‘C’ program to display matrix transpose.

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 16:52:00 +0530

C File =>

/* Write a ‘C’ program to read a matrix and display its transpose. */

#include<stdio.h>

int main()

{

int mat[30][30],trans[30][30],i,j,m,n;

printf("\n Enter how many rows?");

scanf("%d",&m);

printf("\n Enter how many cols?");

scanf("%d",&n);

printf("\n Input matrix");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d",i+1,j+1);

scanf("%d",&mat[i][j]);

}

printf("\n\n Given matrix is\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("%d\t",mat[i][j]);

trans[j][i]=mat[i][j];

}

printf("\n");

}

printf("\n\n Transpose of given matrix\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("%d\t",trans[i][j]);

}

printf("\n");

}

return 0;

}

‘C’ program to subtract two matrices of order m X n.

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 16:45:00 +0530

C File =>

/* Write a ‘C’ program to subtract two matrices of order mXn */

#include<stdio.h>

int main()

{

int m,n,i,j,mat1[20][20];

int mat2[20][20],sub[20][20];

printf("\n Enter no. of rows : ");

scanf("%d",&m);

printf("\n Enter no. of cols : ");

scanf("%d",&n);

printf("\n Input Matrix1 : \n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d : ",i+1,j+1);

scanf("%d",&mat1[i][j]);

}

printf("\n Input Matrix2 : \n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d : ",i+1,j+1);

scanf("%d",&mat2[i][j]);

}

printf("\n\n Resultant Matrix is :\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

sub[i][j]=mat1[i][j]-mat2[i][j];

printf("%d\t",sub[i][j]);

}

printf("\n");

}

return 0;

}

‘C’ program to calculate the sum of diagonal elements of matrix.

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 16:37:00 +0530

C File =>

/* Write a ‘C’ program to read a matrix and calculate the sum of its diagonal

elements. */

#include<stdio.h>

int main()

{

int mat[30][30],sum=0,i,j,m,n;

printf("\n Enter how many rows?");

scanf("%d",&m);

printf("\n Enter how many cols?");

scanf("%d",&n);

printf("\n Input matrix");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d",i+1,j+1);

scanf("%d",&mat[i][j]);

}

printf("\n\n Given matrix is\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("%d\t",mat[i][j]);

if(i==j)

sum=sum+mat[i][j];

}

printf("\n");

}

printf("\n Sum of diagonal : %d",sum);

return 0;

}

‘C’ program to check if a n X n matrix is symmetric.

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 16:27:00 +0530

C File =>

/* Write a ‘C’ program to check if a nXn matrix is symmetric. */

#include<stdio.h>

int main()

{

int mat[30][30],i,j,m,n,flag=1;

printf("\n Enter how many rows?");

scanf("%d",&m);

printf("\n Enter how many cols?");

scanf("%d",&n);

printf("\n Input matrix");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

printf("\n Enter element %d%d",i+1,j+1);

scanf("%d",&mat[i][j]);

}

printf("\n\n Given matrix is\n");

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

printf("%d\t",mat[i][j]);

printf("\n");

}

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

if(mat[i][j]!=mat[j][i])

{

flag=0;

break;

}

printf("\n");

}

if(flag==1)

printf("\n Matrix is Symmetric");

else

printf("\n Matrix is not symmetric");

return 0;

}

‘C’ program to accepts a character and integer n as parameter and displays the next 'n' characters.

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 16:21:00 +0530

C File =>

/* Write a function in ‘C’, which accepts a character and integer n as parameter and displays the next 'n' characters. */

#include<stdio.h>

int main()

{

int n,i;

char c;

// defining function

void disp_chars(char ch,int n)

{

for(i=1;i<=n;i++)

{

printf("%c\t",ch+1);

ch++;

}

printf("\n Enter character : ");

scanf("%c",&c);

printf("\n Enter value of n : ");

scanf("%d",&n);

printf("\n Next %d characters are :\n",n);

disp_chars(c,n);

return 0;

}

Assignment II - Basic 'C'

noreply@blogger.com (Ms. Vijaya H. Pise) — Mon, 1 Jun 2020 09:06:00 +0530

Assignment II

Write a ‘C’ program to calculate the sum of factors of anumber.

Write a recursive function in ‘C’ to calculate factorialof a number. Use this function in main.

Write a function in ‘C’ to reverse an integer. Use thisin main

Write a function in ‘C’ to calculate sum of digits of aninteger. Use this function in main.

Write a ‘C’ program to display n terms of the Fibonacciseries.

Write a ‘C’ function to check if a number is prime. Use this function to display all prime numbers between 100 and 500.

Write a ‘C’ program to display n lines of the following pattern.

2 3

4 5 6

Write a ‘C’ program to calculate the GCD of two numbers.

Write a ‘C’ program to accept real number x and integer n and calculate the sum of first n terms of the series x+ x/3!+ x/5!+ x/7!+...

Write a ‘C’ function to calculate x^y. Use this function to calculate the sum of first n terms of the series x + x³/3 + x⁵/5 + ....

Write a ‘C’ program to accept a character and check if itis alphabet, digit or special symbol. If it is an alphabet, check if it isuppercase or lowercase.

Write a ‘C’ program to check whether the given year is leap year or not.

Write a ‘C’ program to check if a number is perfect (number = sum of its factors)

‘C’ program to check if a number is perfect

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 19:40:00 +0530

C File =>

/* Write a ‘C’ program to check if a number is perfect (number = sum of its factors) */

#include <stdio.h>

int main()

{

int n, i,sum=0;

printf("\n Enter a positive integer: ");

scanf("%d",&n);

printf("\n Factors of %d are: ", n);

for (i = 1; i<n; ++i)

{

if (n % i == 0)

{

printf("%d\t", i);

sum=sum+i;

}

} //end for

if(sum==n)

printf("\n %d is perfect number",n);

else

printf("\n %d is Not a perfect number",n);

return 0;

}

‘C’ program to check given year is leap year or not.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 19:35:00 +0530

C File =>

/* Write a ‘C’ program to check whether the given year is leap year or not. */

#include<stdio.h>

int main()

{

int year;

printf("Enter year: ");

scanf("%d",&year);

if(year % 4 == 0)

{

//Nested if else

if( year % 100 == 0)

{

if ( year % 400 == 0)

printf("\n%d is a Leap Year", year);

else

printf("\n%d is not a Leap Year", year);

}

else

printf("\n%d is a Leap Year", year );

}

else

printf("\n%d is not a Leap Year", year);

return 0;

}

‘C’ program to check if character is alphabet, digit or special symbol.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 19:30:00 +0530

C File =>

/* Write a ‘C’ program to accept a character and check if it is alphabet, digit or special symbol. If it is an alphabet, check if it is uppercase or lowercase. */

#include<stdio.h>

#include<ctype.h>

int main()

{

char c;

printf("\n Enter any character : ");

scanf("%c",&c);

if(isalpha(c))

{

if(islower(c))

printf("\n Lowercase alphabet");

else

printf("\n Uppercase alphabet");

}

else if(isdigit(c))

printf("\n You entered Digit");

else

printf("It is a special symbol");

return 0;

}

‘C’ function to calculate x^y. Use this function to calculate the sum of first n terms of the series x + x^3/3 + x^5/5 + ...

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 19:25:00 +0530

C File =>

/* Write a ‘C’ function to calculate xy. Use this function to calculate the sum of first n terms of the series x + x^3/3 + x^5/5 + ... */

#include<stdio.h>

int main()

{

int n,x,i,sum=0;

// defining function to compute x^y

int cal_pow(int x, int y)

{

if (y == 0)

return 1;

else if (y%2 == 0)

return cal_pow(x, y/2)*cal_pow(x, y/2);

else

return x*cal_pow(x, y/2)*cal_pow(x, y/2);

}

printf("\n Enter value of x : ");

scanf("%d",&x);

printf("\n Enter value of n : ");

scanf("%d",&n);

for(i=1;i<=n;i=i+2)

sum=sum+(cal_pow(x,i)/i);

printf("\n Sum of series = %d",sum);

return 0;

}

‘C’ program to accept real number x and integer n and calculate the sum of first n terms of the series x+ x/3!+ x/5!+ x/7!+…

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 19:20:00 +0530

C File =>

/* Write a ‘C’ program to accept real number x and integer n and calculate

the sum of first n terms of the series

x+ x/3!+ x/5!+ x/7!+… */

#include<stdio.h>

int main()

{

int x,n,i;

float sum=0;

printf("\n Enter value of x : ");

scanf("%d",&x);

printf("\n Enter value of n : ");

scanf("%d",&n);

printf("\n\n Sum of series x+x/3!+x/5!...\n");

// defining function to compute factorial

int fact(int n)

{

if(n==1)

return 1;

else

return (n*fact(n-1));

}

// computing sum of series

for(i=1;i<=n;i=i+3)

sum=sum+x/fact(i);

printf("\n %f",sum);

return 0;

}

‘C’ program to calculate the GCD of two numbers.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 16:17:00 +0530

C File =>

/* Write a ‘C’ program to calculate the GCD of two numbers. */

#include<stdio.h>

int main()

{

int m, n;

printf("Enter two positive integers: ");

scanf("%d %d",&m,&n);

while(m!=n)

{

if(m > n)

m = m - n;

else

n = n - m;

}

printf("GCD = %d",m);

return 0;

}

‘C’ program to display n lines of the pattern.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 16:13:00 +0530

C File =>

/* Write a ‘C’ program to display n lines of the following pattern.

2 3

4 5 6 */

#include<stdio.h>

int main()

{

int i,j,n=1;

for(i=1;i<4;i++)

{

for(j=1;j<=i;j++)

{

printf("%d\t",n);

n++;

}

printf("\n");

}

return 0;

}

‘C’ function to check if a number is prime.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 16:10:00 +0530

C File =>

/* Write a ‘C’ function to check if a number is prime. Use this function to

display all prime numbers between 100 and 500. */

#include<stdio.h>

int main()

{

int i;

// function to check if number is prime

int isprime(int n)

{

int flag=1,i;

for(i=2;i<n-1;i++)

{

if(n%i==0)

{

flag=0;

break;

}

return flag;

}

printf("\n Prime numbers between 100 and 500 :\n");

for(i=100;i<500;i++)

{

if(isprime(i)==1)

printf("%d\t",i);

}

return 0;

}

‘C’ program to display n terms of the Fibonacci series.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 16:03:00 +0530

C File =>

/* Write a ‘C’ program to display n terms of the Fibonacci series. */

#include<stdio.h>

int main()

{

int n,i,a=0,b=1,c;

printf("\n Enter value of n : ");

scanf("%d",&n);

if(n==1)

printf("\n %d",a);

else if(n==2)

printf("\n%d\t%d",a,b);

else if(n>2)

{

printf("\n%d\t%d\t",a,b);

for(i=3;i<=n;i++)

{

c=a+b;

printf("%d\t",c);

a=b;

b=c;

} //end for

}

return 0;

}

‘C’ to calculate sum of digits of an integer.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 15:58:00 +0530

C File =>

/* Write a function in ‘C’ to calculate sum of digits of an integer. Use this function in main */

#include<stdio.h>

int main()

{

int num;

// defining function

void sum_digits(int n)

{

int r,sum=0;

int num=n;

while(n>0)

{

r=n%10;

sum=sum+r;

n=n/10;

}

printf("\n Sum of digits in %d is %d",num,sum);

}

printf("\n Enter number : ");

scanf("%d",&num);

//calling function

sum_digits(num);

return 0;

}

‘C’ to reverse an integer.

noreply@blogger.com (Ms. Vijaya H. Pise) — Sat, 30 May 2020 15:53:00 +0530

C File =>

/* Write a function in ‘C’ to reverse an integer. Use this in main */

#include<stdio.h>

int main()

{

int num;

// function to compute reverse

void reverse_num(int n)

{

int r,sum=0;

printf("\n Reverse of %d is ",n);

while(n>0)

{

r=n%10;

printf("%d",r);

n=n/10;

}

printf("\n Enter number : ");

scanf("%d",&num);

//calling function

reverse_num(num);

return 0;

}