Here is the C++ program to find the sum of diagonals of a matrix.
The matrix should be a square matrix.
#include<iostream>
using namespace std;
int main()
{
int a[5][5],d1sum=0,d2sum=0,m,i,j;
cout<<"Enter size of the square matrix(max 5):";
cin>>m;
cout<<"\nEnter the Matrix row wise:\n";
for(i=0;i<m;i++)
for(j=0;j<m;++j)
cin>>a[i][j];
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<<"\nSum of 2nd diagonal is "<<d2sum;
return 0;
}
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
in 15 th line there is a extra bracket ……………….
no their is no extra bracket
Thanku you are awsome
Its but the size of page is small and not able to get whole program like in last 2 cout.
You are awesome
thanx dear
Awesome. It really helped 😉☺😇👏✌🎓
Thank you
thank you
Thnx
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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.
This work with vectors?