Add your introductory comments here include using namespace

/* Add your introductory comments here.*/

#include <iostream>

using namespace std;
int main(){int magicsquare[20][20];

int rowsandcolumns;cout << \"What size of a magic square would you like to test?\"

<< \"\ (Because it is a square the number of rows equals the number

of columns.) \";

cin >> rowsandcolumns;

//assume the user enters a value <= 20

cout << \"Enter the values for the square one value at a time.\";//assume the user enters correct values
for (int r = 0; r < rowsandcolumns; r++){

for (int c = 0; c < rowsandcolumns; c++){

cout << \"Enter the value for row \" << r + 1 << \" column \" << c

+ 1 << \". \";

cin >> magicsquare[r][c];

}

}

//Print out their input array here as a table
//test if it is a Lo Shu Magic Square, Magic Square (not Lo Shu),// or not a magic square and output the result
return 0;

}

4 9 2 B 3 5 7 A 4 9 2 C4 5 6 8 1 6

Solution

#include <iostream>
using namespace std;

int main()
{
   int magicsquare[20][20];
   int rows;

int columns;

   cout << \"What size of a magic square would you like to test?\"
       << \"\ (Because it is a square the number of rows equals the number of columns.) \";

   cin >> rows;

cin>>columns;
//assume the user enters a value <= 20

   cout << \"Enter the values for the square one value at a time.\";
   //assume the user enters correct values

   for (int r = 0; r < rows; r++)
   {
       for (int c = 0; c < columns; c++)
       {
           cout << \"Enter the value for row \" << r + 1 << \" column \" << c + 1 << \". \";
           cin >> magicsquare[r][c];
       }
   }

   //Print out their input array here as a table

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

cout<<magicsquare[i][j];

}

cout<<\"\ \";

checkType(magicsquare,rows,columns);

   return 0;
}

void checkType(int mat[][],int r,int c)

{

int rsc,csc;

int dc;

rsc=csc=dc=0;

int sum=mat[0][0]+mat[0][1]+mat[0][2];

for(int i=0;i<r;i++)

{

int sum1=0;

for(int j=0;j<c;j++)

{

sum1=sum1+mat[i][j];

}

if(sum1==sum)

rsc++;

sum1=0;

}

for(int i=0;i<c;i++)

{

int sum2=0;

for(int j=0;j<r;j++)

{

sum2=sum2+mat[i][j];

}

if(sum2==sum)csc++;

sum2=0;

}

sum1=0;

sum2=0;

int a=0;

int b=c;

for(int i=0;i<r;i++)

{

for(int j=0;j<c;j++)

{

sum1=sum1+mat[i][a];

sum2=sum2+mat[i][b];

a++;

b--;

}

}

if(sum1==sum2&&sum2==sum)dc=2;

if(rsc==r&&csc==c&&dc==2)

cout<<\"\ Lo Shu magic square\";

else if(rsc==r&&csc==c&&dc!=2)

cout<<\"\ magic square\";

else cout<<\"\ not a magic square\";

}