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Add files via upload #11

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40 changes: 40 additions & 0 deletions binary search.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
#include<iostream>

using namespace std;

int main()
{
int *arr;
int n;
cout<<"Enter size";
cin>>n;
arr=new int[n];
cout<<"Enter array";
for(int k=0;k<n;k++)
cin>>arr[k];
cout<<"Array is: ";
for(int k=0;k<n;k++)
cout<<arr[k]<<" ";
int value;
cout<<"Enter value to be searched :";
cin>>value;
bool flag=false;
int f=0,l=n-1,mid;
while(f<=l)
{
mid=(f+l)/2;
if(value==arr[mid])
{
cout<<"Value "<<value<<" found at "<<mid+1<<" position";
flag=true;
break;
}
else if(value<arr[mid])
l=mid-1;
else
f=mid+1;
}
if(flag==false)
cout<<value<<" is not in array";
delete arr;
}