first commit

Searching/binary search.cpp

@@ -0,0 +1,43 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int i,n,k,beg=0,end,mid,f=0,ar[100],ele;
+	cout<<"Enter Your no. of element";
+	cin>>n;
+	for(i=0;i<n;i++)
+	{
+		cin>>ar[i];
+	}
+	end=n-1;
+	cout<<"Enter element to find=";
+	cin>>ele;
+	while(beg<=end)
+	{
+		mid=(end+beg)/2;
+		if(ar[mid]==ele)
+		{
+			k=mid+1;
+			f=1;
+			break;
+		}
+		else if(ar[mid]<ele)
+		{
+			beg=mid+1;
+		}
+		else
+		{
+			end=mid-1;
+		}
+	}
+	if(f==1)
+	{
+		cout<<"Your Element is in "<<k<<" position";
+	}
+	else
+	{
+	cout<<"element not found";
+
+	}
+	return 0;
+}

Swap-without-third-variable/swap without using 3 variable.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int a,b;
+	cout<<"Enter value of a = ";
+	cin>>a;
+	cout<<"Enter value of b = ";
+	cin>>b;
+	a=a-b;
+	b=a+b;
+	a=b-a;
+	cout<<"After swaping  value of a = "<<a<<" and value of b = "<<b;
+
+}