ADDED THE README FILE

C++/Program 28/README.md

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+program for linear search using menu driven program 

C++/Program 28/menu driven linear search.cpp

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+#include<iostream>
+using namespace std;
+#define R 3
+#define C 3
+int enter(int arr[R][C], int r, int c)
+{
+
+	for(int i=0; i<r; i++)
+	{
+		for(int j=0; j<c; j++)
+		{
+			cout<<"enter the data ";
+			cin>>arr[i][j];
+		}
+	}
+}
+int display(int arr[R][C], int r, int c)
+{
+	cout<<".................the matrix is ................"<<endl;
+	for(int i=0; i<r; i++)
+	{
+		for(int j=0; j<c; j++)
+		{
+			cout<<arr[i][j]<<"\t";
+		}
+		cout<<endl;
+	}
+}
+int search(int arr[R][C], int r, int c)
+{
+	int item,flag=0;
+	cout<<"enter the item to be serached :";
+	cin>>item;
+
+	for(int i=0; i<r; i++)
+	{
+		for(int j=0; j<c; j++)
+		{
+			if(item==arr[i][j])
+				flag=1;
+		}
+	}
+	if(flag==1)
+	{
+		cout<<"item found";
+	}
+	else
+	cout<<"item not found";
+}
+int main()
+{   
+    int arr[R][C];
+	cout<<"press 1 for entering the matrix"<<endl;
+	cout<<"press 2 for dispalaying the matrix"<<endl;
+	cout<<"press 3 for linear search"<<endl;
+	int ch;
+do
+{   cout<<"enter the choice "<<endl;
+    cin>>ch;
+	switch(ch)
+	{
+	case 1 :
+		{
+			enter(arr,R,C);
+			break;
+		}
+	case 2:
+		{
+		    display(arr,R,C);
+			break;	
+		}
+	case 3:
+		{
+			search(arr,R,C);
+			break;
+		}
+	default:
+		{
+			cout<<"invalid choice";
+		}
+	}
+}
+	while(ch!=3);
+	return 0;
+}
+
+
+
+