C++ Program To Binary Search

//BINARY SEARCH
#include<iostream.h>
#include<conio.h>

void main()
{
int a[50];
clrscr();
cout<<"enter no of elements:";
int n;
cin>>n;
cout<<"enter in asceding order::";
for(int i=0;i<n;i++)
{
cout<<"a["<<i<<"]:";
cin>>a[i];
}
for(i=0;i<n;i++)
{
cout<<"a["<<i<<"]:"<<a[i]<<endl;
}
cout<<"enter no which you want to saerch:";
int m;
cin>>m;
int fi=0;
int la=n-1;
for(;!(m>a[la]||m<a[fi]);)
{
int mid=(fi+la)/2;

if(m==a[mid])
{
     cout<<"your no at:"<<mid;
     break;
}
else if(m>a[mid])
{
fi=mid+1;
}
else
{
la=mid-1;
}
}

getch();
}

Example Of Dijkstra's algorithm

C Program to print Product of Digits of a given number

/*
eg. 212=2*1*2=4
eg. 313=3*1*3=9
*/

#include<stdio.h>

#include<conio.h>

void main()

{

 int no,r,pt=1;

 clrscr();

 printf("Enter a no:");

 scanf("%d",&no);

 while(no>0)

 {

  r=no%10;

  pt=pt*r;

  no=no/10;

 }

 printf("Product of Digits= %d",pt);

 getch();

}

C program to sort 10 Array elements in descending order Using Array

# include<stdio.h>
# include<conio.h>
void main()
{
int arr[10];
int i,j,temp;
clrscr();
for(i=0;i<10;i++)
scanf("%d",&arr[i]);
for(i=0;i<9;i++)
{
  for(j=i+1;j<10;j++)
  {
   if(arr[i]<arr[j])
   {
   temp=arr[i];
   arr[i]=arr[j];
   arr[j]=temp;
   }
}
}
printf("\nSorted array elements :\n");
for(i=0;i<10;i++)
printf("%d ",arr[i]) ;
getch();
}

C Program to Reverse print an array

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

void main()
{
int arr[10];
int i,j,temp;
clrscr();
for(i=0;i<10;i++)
scanf("%d",&arr[i]);
printf("\nPrinting an sorted array\n");
for(i=9;i>=0;i--)
printf("%d ",arr[i]) ;
getch();
}

C Program to Print Alternate Using Array

# include<stdio.h>
# include<conio.h>
void main()
{
 int arr[10];
 int i,j,temp;
 clrscr();
 for(i=0;i<10;i++)
 scanf("%d",&arr[i]);
 for(i=0;i<10;i+=2)
 printf("%d ",arr[i]) ;
 getch();
}

C Program print alternate element of an array

 /*C Program to print alternate element of an array*/
# include<stdio.h>
# include<conio.h>

void main()
{
int arr[10];
int i,j,temp;
clrscr();
for(i=0;i<10;i++)
scanf("%d",&arr[i]);
for(i=0;i<10;i+=2)
printf("%d ",arr[i]) ;
getch();
}