Create Find Sum of Diagonals elements in a Matrix.cpp

Author: MonalikaKapoor

Find Sum of Diagonals elements in a Matrix.cpp

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+/*  C++ Program to Find Sum of Diagonals elements in a Matrix  */
+
+#include<iostream>
+
+using namespace std;
+
+int main()
+{
+    int a[10][10],d1sum=0,d2sum=0,m,i,j;
+    cout<<"Enter size of matrix :: ";
+    cin>>m;
+    cout<<"\nEnter Elements to Matrix Below :: \n";
+
+    for(i=0;i<m;i++)
+    {
+        for(j=0;j<m;++j)
+        {
+            cout<<"\nEnter a["<<i<<"]["<<j<<"] Element :: ";
+            cin>>a[i][j];
+        }
+
+    }
+
+    cout<<"\nThe given matrix is :: \n\n";
+        for (i = 0; i < m; ++i)
+        {
+            for (j = 0; j < m; ++j)
+            {
+                cout<<"\t"<<a[i][j];
+            }
+            printf("\n\n");
+        }
+
+
+
+    for(i=0;i<m;++i)
+        for(j=0;j<m;++j)
+        {
+            if(i==j)
+                d1sum+=a[i][j];
+            if(i+j==(m-1))
+                d2sum+=a[i][j];
+        }
+
+    cout<<"\nSum of 1st diagonal is :: "<<d1sum;
+    cout<<"\n\nSum of 2nd diagonal is :: "<<d2sum;
+
+    return 0;
+}