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program for binary search added #3

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Merged
adarshbalu merged 1 commit into from
Oct 23, 2019
Merged

program for binary search added #3

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program for binary search added
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@Preethirkrish
Preethirkrish authored Oct 23, 2019
commit 581efac0f9837e7ba650801e10570d81bf5940ad
42 changes: 42 additions & 0 deletions BINARYSE.CPP
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Original file line number Diff line number Diff line change
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#include<conio.h>
#include<iostream.h>
void main()
{ clrscr();
int n,item,a[21], flag=1,first,last,middle;
cout<<"\nEnter no.of elements:";
cin>>n;
cout<<"\nEnter the elements:";
for(int i=0;i<n;i++)
{
cin>>a[i];
}
cout<<"\nenter element to be searched:";
cin>>item;
first=0;
last=n-1;
middle=(first+last)/2;
while(first<=last)
{
if(a[middle]<item)
{
first=middle+1;
}
else if(a[middle]==item)
{
cout<<"\n element found at pos:"<<middle+1;
flag=0;
break;

}
else
{
last=middle-1;
}
middle=(first+last)/2;
}
if(flag==1)
{
cout<<"\nelement not found" ;
}
getch();
}