C++ Program to Find Sum of Diagonals of Matrix

Here is the C++ program to find the sum of diagonals of a matrix.

The matrix should be a square matrix.

 

Output

Enter size of the square matrix(max 5):

3

1 2 3

4 5 6

7 8 9

Sum of 1st diagonal is 15

Sum of 2nd diagonal is 15

12 thoughts on “C++ Program to Find Sum of Diagonals of Matrix

  1. sm sameer

    in 15 th line there is a extra bracket ……………….

    Reply
  2. Nitin Joshi

    Its but the size of page is small and not able to get whole program like in last 2 cout.

    Reply
  3. mr. Holmes

    Wow!!! I request you to join my school as CS teacher…………..that will be really a great help for me and my friends……………………….I just added you on FB..

    Reply
  4. silvia

    Hello! Can you please help me? I don’t know how to sort the principal diagonal elements of a matrix in ascending or descending order . I have used this code:
    #include
    #define N 3

    using namespace std;

    int main()
    {
    int i,j,Matric[N][N],tmp,k,a[N][N],min,w,q=0,z=0;

    cout<<"\nVendosni vlerat e matrices:\n";
    for(i=0 ; i<N ; i++)
    {
    for(j=0 ; j<N ; j++)
    {
    cout<<"Vendos ["<<i<<"]["<<j<>Matric[i][j];
    }
    }

    cout<<"\nMatrica e dhene:\n";
    for(i=0 ; i<N ; i++)
    {
    for(j=0 ; j<N ; j++)
    {
    cout<<Matric[i][j]<<" ";
    }
    cout<<endl;
    }

    cout<<"\nDiagonalja kryesore: ";
    for(i=0 ; i<N ; i++)
    for (j=0; j<N ; j++)
    { if (i==j)
    cout<<Matric[i][j]<<" ";
    }

    cout<<"\n Elementet e diagonales sipas rendit zbrites: \n" ;

    return 0;
    }
    could you please help me?
    thanks in advance.

    Reply

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