Merge pull request #1652 from SAKSHI-CHANDEL/master

Adding Implementation of Two Dimensional array in C++

data_structures/ArraysTwoDimensional/Cpp/TwoDimensionalArray.cpp

@@ -0,0 +1,138 @@
+//Implementation of Two Dimensional array in C++
+
+#include<iostream>
+using namespace std;
+
+class twoDarray
+{
+	int a[50][50],i,j,n,r,c,s1 = 0, s2 = 0,old,ne,del;
+public:
+	void insert();
+	void display();
+	void search();
+	void update();
+	void dele();
+	void sumdiagonal();
+};
+
+void twoDarray::insert()
+{
+	cout<<"\nEnter the no. of rows and columns : ";
+	cin>>r>>c;
+	cout<<"\nEnter elements : ";
+	for(i = 0; i < r; i++)
+	{
+		for(j = 0; j < c; j++)
+			cin>>a[i][j];
+	}
+}
+
+void twoDarray::display()
+{
+	cout<<"\nThe matrix is :";
+	for(i = 0; i < r; i++)
+	{
+	    cout<<"\n";
+		for(j = 0; j < c; j++)
+			cout<<a[i][j]<<"\t";
+	}
+	cout<<endl;
+}
+
+void twoDarray::search()
+{
+	cout<<"\nEnter element you want to search : ";
+	cin>>n;
+	for(i = 0; i < r; i++)
+	{
+		for(j = 0; j < c; j++)
+		{
+			if(a[i][j] == n)
+			{
+				cout<<"\nElement found at position :"<<i << " : "<< j;
+				return;
+			}
+		}
+	}
+	cout<<"\nElement not found!";
+}
+
+void twoDarray::update()
+{
+    cout<<"\nEnter element to be updated : ";
+    cin>>old;
+    cout<<"\nEnter new value : ";
+    cin>>ne;
+    for(i = 0; i < r; i++)
+	{
+		for(j = 0; j < c; j++)
+		{
+			if(a[i][j] == old)
+			{
+			    a[i][j] = ne;
+			    return;
+			}
+		}
+	}
+}
+
+void twoDarray::dele()
+{
+    cout<<"\nEnter element you want to delete : ";
+    cin>>del;
+    for(i = 0; i < r; i++)
+	{
+		for(j = 0; j < c; j++)
+		{
+			if(a[i][j] ==del )
+			{
+				a[i][j++] = -1;
+				cout<<"Row : "<<i<<" , Column : "<<j;
+				return;
+			}
+		}
+	}
+}
+
+void twoDarray::sumdiagonal()
+{
+    if( r == c)
+    {
+	    for(i = 0; i < r; i++)
+	    {
+		    for(j = 0; j < c; j++)
+		    {
+			    if(i == j)
+			    {
+				    s1+= a[i][j];
+			    }
+			    if(i == c-(j+1))
+			    {
+				    s2+= a[i][j];			
+			    }
+
+		    }
+	    }
+    }
+    else
+    {
+        cout<<"\nMatrix is not sqaure. Sum of diagonal cannot be found!";
+        return;
+    }
+	cout<<"\nSum of Primary diagonal : "<<s1;
+	cout<<"\nSum of Secondary diagonal : "<<s2;
+}
+
+int main()
+{
+	twoDarray o;
+	o.insert();
+	o.display();
+	o.search();
+	o.update();
+	o.display();
+	o.dele();
+	o.display();
+	o.sumdiagonal();
+	return 0;
+}