Month: October 2011

C program to illustrate the concept of unions

Posted on by Sandeepa Nadahalli
C program to demonstrate unions. unions are like C structures, but every member occupies the same memory region. 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()
{
 union number
 {
  int  n1;
  float n2;
 };

 union number x;

 clrscr() ;

 printf("Enter the value of n1: ");
 scanf("%d", &x.n1);
 printf("Value of n1 =%d", x.n1);

 printf("nEnter the value of n2: ");
 scanf("%d", &x.n2);
 printf("Value of n2 = %dn",x.n2);

}  
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Union.

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C program to find size-of an array.

Posted on by Sandeepa Nadahalli
Example programs to solve the problems of Arrays in C. In This program we, find the size of the array using sizeof() 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
***********************************************************/

#include <stdio.h>
int main( )
{

 int i,num;
 printf("nEnter the hoe many elements you want?n");
 scanf("%d",&num);

 int a[num];
 printf("nEnter the %d elements:n",num);
 for(i=0;i<num;i++)
 {
  scanf("%d",&a[i]);
 }
 printf("Elements in array are:n");
 for(i=0;i<num;i++)
 {
  printf("%dn",a[i]);
 }
 printf(" The size of the array is: %d Bytes.",(int)sizeof(a));

 return 0 ;
}
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Array In C

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C Program to print Multiplication table.

Posted on by Sandeepa Nadahalli
C Program to print the multiplication table using while statement. 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>
int main() {
 int num, i = 1;
 printf("n Enter any Number:");
 scanf("%d", &num);
 printf("Multiplication table of %d: n", num);
 while (i <= 10) {
  printf("n %d x %d = %d", num, i, num * i);
  i++;
 }
 return 0;
}
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C Program to demonstrate Formatting of Integers, Real Numbers and Strings.

Posted on by Sandeepa Nadahalli
C Program to format the outputs of Integers, Floats and Strings. Here we gives the all the format specifiers example. 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>

main() {
 clrscr();
 int num1 = 12345;
 long num2 = 987654;
 float num3 = 98.7654;
 printf("%dnn", num1);
 printf("%10dnn", num1);
 printf("%010dnn", num1);
 printf("%-10dnn", num1);
 printf("%10ldnn", num2);
 printf("%10ldnn", -num2);
 printf("%7.4fnn", num3);
 printf("%fnn", num3);
 printf("%7.2fnn", num3);
 printf("%-7.2fnn", num3);
 printf("%07.2fnn", num3);
 printf("%*.*f", 7, 2, num3);
 printf("nn");
 printf("%10.2enn", num3);
 printf("%12.4enn", -num3);
 printf("%-10.2enn", num3);
 printf("%enn", num3);
 printf(":%s:n", "Hello, world!");
 printf(":%15s:n", "Hello, world!");
 printf(":%.10s:n", "Hello, world!");
 printf(":%-10s:n", "Hello, world!");
 printf(":%-15s:n", "Hello, world!");
 printf(":%.15s:n", "Hello, world!");
 printf(":%15.10s:n", "Hello, world!");
 printf(":%-15.10s:n", "Hello, world!");
 getch();
}
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C Program to find a minimum spanning tree using Prim’s algorithm

Posted on by Sandeepa Nadahalli
C Program to implement the Prim’s algorithm. Prims algorithm is a greedy algorithm that finds the minimum spanning tree of a graph. Graph should be weighted, connected, and undirected. 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>
int a,b,u,v,n,i,j,ne=1;
int visited[10]={0},min,mincost=0,cost[10][10];
void main()
{
 clrscr();
 printf("n Enter the number of nodes:");
 scanf("%d",&n);
 printf("n Enter the adjacency matrix:n");
 for(i=1;i<=n;i++)
  for(j=1;j<=n;j++)
  {
   scanf("%d",&cost[i][j]);
   if(cost[i][j]==0)
    cost[i][j]=999;
  }
 visited[1]=1;
 printf("n");
 while(ne<n)
 {
  for(i=1,min=999;i<=n;i++)
   for(j=1;j<=n;j++)
    if(cost[i][j]<min)
     if(visited[i]!=0)
     {
      min=cost[i][j];
      a=u=i;
      b=v=j;
     }
  if(visited[u]==0 || visited[v]==0)
  {
   printf("n Edge %d:(%d %d) cost:%d",ne++,a,b,min);
   mincost+=min;
   visited[b]=1;
  }
  cost[a][b]=cost[b][a]=999;
 }
 printf("n Minimun cost=%d",mincost);
 getch();
}
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Data Structures
Dijkstras Algorithm

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C Program to search the perticulur pattern in the string using Horspool method.

Posted on by Sandeepa Nadahalli
C Program to find the substring in a String using the Horspool method. This algorithm uses the Brute-Forse method which searches the text between 0 and n-m, and after each cycle it shifts the pattern by one position to the right. 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<string.h>
#include<conio.h>
#define MAX 500
int t[MAX];
void shifttable(char p[])
{
 int i,j,m;
 m=strlen(p);
 for(i=0;i<MAX;i++)
  t[i]=m;
 for(j=0;j<m-1;j++)
  t[p[j]]=m-1-j;
}
int horspool(char src[],char p[])
{
 int i,j,k,m,n;
 n=strlen(src);
 m=strlen(p);
 printf("nLength of text=%d",n);
 printf("n Length of pattern=%d",m);
 i=m-1;
 while(i<n)
 {
  k=0;
  while((k<m)&&(p[m-1-k]==src[i-k]))
   k++;
  if(k==m)
   return(i-m+1);
  else
   i+=t[src[i]];
 }
 return -1;
}
void main()
{
 char src[100],p[100];
 int pos;
 clrscr();
 printf("Enter the text in which pattern is to be searched:n");
 gets(src);
 printf("Enter the pattern to be searched:n");
 gets(p);
 shifttable(p);
 pos=horspool(src,p);
 if(pos>=0)
  printf("n The desired pattern was found starting from position %d",pos+1);
 else
  printf("n The pattern was not found in the given textn");
 getch();
}
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Data Strucures

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C Program to count the number of occurrences of particular word in a string

Posted on by Sandeepa Nadahalli
C Program that counts the particular word in the given string. For example in the string ” the string is the set of charterers” , Number of occurrences of “the” is:2. 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<string.h>

main()

{

 int strln,wordln,i,j,k,flag,count=0;

 char str[200],word[20];

 printf("Enter line of text:n");

 gets(str);

 printf("Enter the word to count:n");

 scanf("%s",word);

 strln=strlen(str);

 wordln=strlen(word);

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

 {

  if(str[i]==word[0]&&((str[i-1]==' '||i==0)&&(str[i+wordln]==' '||str[i+wordln]=='')))

  {

   for(flag=0,k=i+1,j=1;j<wordln;j++,k++)

   {

    if(str[k]==word[j])

    {

     flag++;

    }

   }

   if(flag==wordln-1)

   {

    count++;

   }

  }

 }

 printf("Number of occurence of '%s' = %dn",word,count);

}


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Searching in C

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C Program to print the pyramid pattern.

Posted on by Sandeepa Nadahalli
C program to print the pyramid pattern. This program prints pyramid of 5 rows using a for loop. 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>
int main()
{
 int r, c,t=5;

 for ( r = 1 ; r <= 5 ; r++ )
 {
  for ( c = 1 ; c < t ; c++ )
   printf(" ");

  t--;

  for ( c = 1 ; c <= 2*r - 1 ; c++ )
   printf("*");

  printf("n");
 }


 return 0;
}
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C Program to demonstrate Ternary condition.

Posted on by Sandeepa Nadahalli
C Program to demonstrate the Ternary conditional operator(?). Ternary operator is a short hand combination of the if-else statement. You can use the ternary operator in initialize lists. 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>
int main()
{
 int min,x,y;
 printf("Enter two numbersn");
 scanf("%d%d",&x,&y);
 min=x <= y ? x : y;
 /* 
The ternary operator (?) can be rewritten using the if-else  statement:
if(x<=y)
  {
    min=x;
  }
  else
  {
   min=y;
  }*/
 printf("n Small number is: %d",min);
 return 0;
} 
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C Program to find Binomial Coefficients

Posted on by Sandeepa Nadahalli

C Program to find Binomial Integers without using recursion.

Binomial coefficients are positive integers that are coefficient of any term in the expansion of (x + a) the number of combination’s of a specified size that can be drawn from a given set.

There are many ways to compute the Binomial coefficients. Like,

In this post we will be using a non-recursive, multiplicative formula.

The program is given below:

// C program to find the Binomial coefficient. Downloaded from www.c-program-example.com 
#include<stdio.h> 
void main() {
    int i, j, n, k, min, c[20][20]={0};
    printf("This program is brought to you by www.c-program-example.com\n" );     
    printf("\n Enter the value of n: ");     
    scanf("%d", &n);     
    printf("\n Enter the value of k: ");     
    scanf("%d", &k);
    if(n >= k) {         
        for(i=0; i<=n; i++) {             
            min = i<k? i:k;
            for(j = 0; j <= min; j++) {
                 if(j==0 || j == i) {
                     c[i][j] = 1;
                 } else {
                     c[i][j] = c[i-1][j-1] + c[i-1][j];
                 }
             }
         }
         printf("%d\t",c[n][k]);
         printf("\n");
     } else {
         printf("\n Invalid input \n Enter value n>=k \n");
     }
}

Sample output

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