C

C program to accept an integer find the sum of the digits in it

Posted on by Sandeepa Nadahalli
C program to accept an integer find the sum of the digits in it. In this program, we accept an integer and get the digits by using while() and % operator, after that we add that digits to the sum variable. Read more about C Programming Language .

/***********************************************************
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* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
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* and browse!
* 
*                                  Happy Coding
***********************************************************/

#include <stdio.h>

void main()
{
 long num, temp, digit, sum = 0;

 printf("Enter the numbern");
 scanf("%ld", &num);

 temp = num;

 while(num > 0)
 {
  digit = num % 10;
  sum  = sum + digit;
  num /= 10;
 }

 printf("Given number =%ldn", temp);
 printf("Sum of the digits %ld =%ldn", temp, sum);
}              /* End of main()*/
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C Program to interchange the main diagonal elements of the matrix

Posted on by Sandeepa Nadahalli
C Program to interchange the main diagonal elements of the matrix. This Program will accept a matrix of order M x N and store its elements and interchange the main diagonal elements of the matrix with that of the secondary diagonal elements .   Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/
void main ()
{

 static int ma[10][10];
 int i,j,m,n,a;

 printf ("Enetr the order of the matix n");
 scanf ("%d %d",&m,&n);

 if (m ==n )
 {
  printf ("Enter the co-efficients of the matrixn");
  for (i=0;i<m;++i)
  {
   for (j=0;j<n;++j)
   {
    scanf ("%dx%d",&ma[i][j]);
   }
  }

  printf ("The given matrix is n");
  for (i=0;i<m;++i)
  {
   for (j=0;j<n;++j)
   {
    printf (" %d",ma[i][j]);
   }
   printf ("n");
  }

  for (i=0;i<m;++i)
  {
   a = ma[i][i];
   ma[i][i]   = ma[i][m-i-1];
   ma[i][m-i-1] = a;
  }

  printf ("THe matrix after changing the n");
  printf ("main diagonal & secondary diagonaln");
  for (i=0;i<m;++i)
  {
   for (j=0;j<n;++j)
   {
    printf (" %d",ma[i][j]);
   }
   printf ("n");
  }
 }
 else
  printf ("The givan order is not square matrixn");

}    /* end of main() */
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C program to find the frequency of odd numbers and even numbers in the input of a matrix

Posted on by Sandeepa Nadahalli
C program to find the frequency of odd numbers and even numbers in the input of a matrix. Program will check the element type, if Matrix element is even, it ads 1 to even counter otherwise ad 1 to odd counter. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/

void main ()
{
 static int ma[10][10];
 int i,j,m,n,even=0,odd=0;

 printf ("Enter the order ofthe matrix n");
 scanf ("%d %d",&m,&n);

 printf ("Enter the coefficients if matrix n");
 for (i=0;i<m;++i)
 {
  for (j=0;j<n;++j)
  {
   scanf ("%d", &ma[i][j]);
   if ((ma[i][j]%2) == 0)
   {
    ++even;
   }
   else
    ++odd;
  }
 }
 printf ("The given matrix isn");
 for (i=0;i<m;++i)
 {
  for (j=0;j<n;++j)
  {
   printf (" %d",ma[i][j]);
  }
  printf ("n");
 }

 printf ("nThe frequency of occurance of odd number  = %dn",odd);
 printf ("The frequency of occurance of even number = %dn",even);

}   /* End of main() */
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C Program to find second largest and second smallest element in an array

Posted on by Sandeepa Nadahalli
Arrays in C,
C Program to find second largest and second smallest element in the array.  Program will accept a list of data items and find the second largest and second smallest elements in it. And also compute the average of both. And search for the average value whether it is present in the array or not. Display appropriate message on successful search.  Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
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* and browse!
* 
*                                  Happy Coding
***********************************************************/


#include <stdio.h>

void main ()
{
 int number[30];
 int i,j,a,n,counter,ave;

 printf ("Enter the value of Nn");
 scanf ("%d", &n);

 printf ("Enter the numbers n");
 for (i=0; i<n; ++i)
  scanf ("%d",&number[i]);

 for (i=0; i<n; ++i)
 {
  for (j=i+1; j<n; ++j)
  {
   if (number[i] < number[j])
   {
    a        = number[i];
    number[i] = number[j];
    number[j] = a;
   }
  }
 }

 printf ("The numbers arranged in descending order are given belown");
 for (i=0; i<n; ++i)
 {
  printf ("%dn",number[i]);
 }

 printf ("The 2nd largest number is  = %dn", number[1]);
 printf ("The 2nd smallest number is = %dn", number[n-2]);

 ave = (number[1] +number[n-2])/2;
 counter = 0;

 for (i=0; i<n; ++i)
 {
  if (ave == number[i])
  {
   ++counter;
  }
 }
 if (counter == 0 )
  printf ("The average of %d  and %d is = %d is not in the arrayn", number[1], number[n-2], ave);
 else
  printf ("The average of %d  and %d in the array is %d in numbersn",number[1], number[n-2], counter);
}           /* End of main() */
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C program to accept N numbers and arrange them in an descending order

Posted on by Sandeepa Nadahalli
C Sorting,
C program to accept N numbers and arrange them in an descending order. Program will accept the array of elements, and returns the elements in descending order. Program use the Bubble sort Technique to sort the Array. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/



#include <stdio.h>

void main ()
{
 int i,j,a,n,number[30];

 printf ("Enter the value of Nn");
 scanf ("%d", &n);

 printf ("Enter the numbers n");
 for (i=0; i<n; ++i)
  scanf ("%d",&number[i]);

 for (i=0; i<n; ++i)
 {
  for (j=i+1; j<n; ++j)
  {
   if (number[i] < number[j])
   {
    a= number[i];
    number[i] = number[j];
    number[j] = a;
   }
  }
 }

 printf ("The numbers arrenged in descending order are given belown");
 for (i=0; i<n; ++i)
  printf ("%dn",number[i]);
}                              /* End of main() */
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C Program to multiply given number by 4 using bitwise operators

Posted on by Sandeepa Nadahalli
C Program to multiply given number by 4 using bitwise operators. Bitwise operators allows to cahnge or edit the specific bits within an integer. Program will multiply a given number by 4 using left shift(<<) bitwise operator. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/

/*    c program to multiply given number by 4     *
 *    using bitwise operators                             */

#include <stdio.h>

void main()
{
 long number, tempnum;

 printf("Enter an integern");
 scanf("%ld",&number);
 tempnum = number;
 number = number << 2;   /*left shift by two bits*/

 printf("%ld x 4 = %ldn", tempnum,number);
}
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C Program to find the Multiplication of two matrices

Posted on by Sandeepa Nadahalli
C Program to find the Multiplication of two matrices. C Program Develop functions
a) To read a given matrix
b) To output a matrix
c) To compute the product of two matrices
Use the above functions to read in two matrices A (MxN) B (NxM), to compute the product of the two matrices, to output the given matrices and the computed matrix in a main function
Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/

#include <stdio.h>
#include <conio.h>
#define MAXROWS 10
#define MAXCOLS 10

void main()
{
 int A[MAXROWS][MAXCOLS], B[MAXROWS][MAXCOLS], C[MAXROWS][MAXCOLS];
 int M, N;

 /*Function declarations*/

 void readMatrix(int arr[][MAXCOLS], int M, int N);
 void printMatrix(int arr[][MAXCOLS], int M, int N);
 void productMatrix(int A[][MAXCOLS], int B[][MAXCOLS], int C[][MAXCOLS],
   int M, int N);

 clrscr();

 printf("Enter the value of M and Nn");
 scanf("%d %d",&M, &N);
 printf ("Enter matrix An");
 readMatrix(A,M,N);
 printf("Matrix An");
 printMatrix(A,M,N);

 printf ("Enter matrix Bn");
 readMatrix(B,M,N);
 printf("Matrix Bn");
 printMatrix(B,M,N);

 productMatrix(A,B,C, M,N);

 printf ("The product matrix isn");
 printMatrix(C,M,N);
}

/*Input matrix A*/
void readMatrix(int arr[][MAXCOLS], int M, int N)
{
 int i, j;
 for(i=0; i< M ; i++)
 {
  for ( j=0; j < N; j++)
  {
   scanf("%d",&arr[i][j]);
  }
 }
}
void printMatrix(int arr[][MAXCOLS], int M, int N)
{
 int i, j;
 for(i=0; i< M ; i++)
 {
  for ( j=0; j < N; j++)
  {
   printf("%3d",arr[i][j]);
  }
  printf("n");
 }
}

/* Multiplication of matrices */
void productMatrix(int A[][MAXCOLS], int B[][MAXCOLS], int C[][MAXCOLS],
  int M, int N)
{
 int i, j, k;
 for(i=0; i< M ; i++)
 {
  for ( j=0; j < N; j++)
  {
   C[i][j] = 0 ;
   for (k=0; k < N; k++)
   {
    C[i][j] = C[i][j] + A[i][k] * B[k][j];
   }
  }
 }
}
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C Program to read an English sentence and replace lowercase characters by uppercase and vice-versa.

Posted on by Sandeepa Nadahalli
Write a C program to read an English sentence and replace lowercase characters by uppercase and vice-verso. Output the given sentence as well as the case converted sentence on two different lines. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/


#include <stdio.h>
#include <ctype.h>
#include <conio.h>

void main()
{
 char sentence[100];
 int count, ch, i;

 clrscr();

 printf("Enter a sentencen");
 for(i=0; (sentence[i] = getchar())!='n'; i++)
 {
  ;
 }

 sentence[i]='';

 count = i; /*shows the number of chars accepted in a sentence*/

 printf("The given sentence is   : %s",sentence);

 printf("nCase changed sentence is: ");
 for(i=0; i < count; i++)
 {
  ch = islower(sentence[i]) ? toupper(sentence[i]) : tolower(sentence[i]);
  putchar(ch);
 }

} /*End of main()*/
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C program to check whether a given string is palindrome or not

Posted on by Sandeepa Nadahalli
Write a C program to read a string and check whether it is a palindrome or not (without using library functions). Output the given string along with suitable message.Palindrome is a word, sentence, group of characters, or number, that remains same, when reversed.
For example: GADAG, 9009… Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/

#include <stdio.h>
#include <conio.h>
#include <string.h>

void main()
{
 char string[25], revString[25]={''};
 int  i,length = 0, flag = 0;

 clrscr();

 fflush(stdin);

 printf("Enter a stringn");
 gets(string);

 for (i=0; string[i] != ''; i++) /*keep going through each */
 {                                 /*character of the string */
  length++;                     /*till its end */
 }

 for (i=length-1; i >= 0 ; i--)
 {
  revString[length-i-1] = string[i];
 }

 /*Compare the input string and its reverse. If both are equal
   then the input string is palindrome. Otherwise it is
   not a palindrome */

 for (i=0; i < length ; i++)
 {
  if (revString[i] == string[i])
   flag = 1;
  else
   flag = 0;
 }

 if (flag == 1)
  printf ("%s is a palindromen", string);
 else
  printf("%s is not a palindromen", string);

}   /*End of main()*/
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C program to find the transpose of a given Matrix.

Posted on by Sandeepa Nadahalli
Write a C program to read A (MxN), find the transpose of a given matrix and output both the input matrix and the transposed matrix.
Transpose of a matrix is the interchanging the rows and columns, If A is matrix of order(i*j), where i is the row and j is the column, then Transpose of A is A(j*i). Read more about C Programming Language .

/***********************************************************
* You can use all the programs on  www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact [email protected]
* To find more C programs, do visit www.c-program-example.com
* and browse!
* 
*                                  Happy Coding
***********************************************************/

    */

#include <stdio.h>
#include <conio.h>

void main()
{
 int i,j,M,N;
 int A[10][10], B[10][10];

 int transpose(int A[][10], int r, int c);  /*Function prototype*/

 clrscr();

 printf("Enter the order of matrix An");
 scanf("%d %d", &M, &N);

 printf("Enter the elements of matrixn");
 for(i=0;i<M;i++)
 {
  for(j=0;j<N;j++)
  {
   scanf("%d",&A[i][j]);
  }
 }

 printf("Matrix A isn");
 for(i=0;i<M;i++)
 {
  for(j=0;j<N;j++)
  {
   printf("%3d",A[i][j]);
  }
  printf("n");
 }

 /* Finding Transpose of matrix*/
 for(i=0;i<M;i++)
 {
  for(j=0;j<N;j++)
  {
   B[i][j] =  A[j][i];
  }
 }

 printf("Its Transpose isn");
 for(i=0;i<M;i++)
 {
  for(j=0;j<N;j++)
  {
   printf("%3d",B[i][j]);
  }
  printf("n");
 }

}  /*End of main()*/
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