CodeGraderBench/CodeGraderBench huggingface dataset:
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
using namespace std ;
# define MAX 8

void compute_matrixtranspose_matrix_product (int H[][MAX], int m, int n, int J[][MAX])
	{
	int c[n][n];
	for ( int  a=0 ;a< n ; a++ )
		{
		for (int b=0 ; b<n ; b++)
		{
		c[a][b]=0 ;
		for (int k=0 ; k<m ; k++ )
		{
	 	c[a][b]=c[a][b] + H[a][k]*J[k][b] ;
		}
		}
		}
	for (int q=0;q<n;q++) {
	for (int w=0;w<n;w++) {cout << c[q][w]<< " " ; }
	cout << endl ; }
	}
int main(){

int m,n  ;
cin >> m >> n ;
int  A[m][MAX] ;

for ( int i=0;i<m;i++ )
	{
	for (int j=0;j<n;j++)
		{
		cin >> A[i][j] ;
		}
	}

int B[n][MAX] ;

for ( int x=0 ; x<n;x++ )
{
for ( int y=0 ; y<m;y++ )
{
B[x][y] = A[y][x] ;
}
}

compute_matrixtranspose_matrix_product ( B , m , n , A ) ;

}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: C
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include <iostream>
#define MAX 100
using namespace std;
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int At[][MAX])
{
int C[n][n];

for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
C[i][j]=0;
for(int k=0;k<m;k++)
C[i][j]=C[i][j]+At[i][k]*A[k][j];
}
}
for(int i=0;i<n;i++){
for(int j=0;j<n;j++)cout<<C[i][j]<<" ";
cout<<endl;
}


}

int main(){
int m,n;
cin>>m>>n;
int A[MAX][MAX];
for(int i=0;i<m;i++){
for(int j=0;j<n;j++)cin>>A[i][j];
}
int At[MAX][MAX];
for(int i=0;i<n;i++){ 
for(int j=0;j<m;j++)At[i][j]=A[j][i];
}
compute_matrixtranspose_matrix_product (A,m,n,At);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: C
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
using namespace std;
#define M 100
void get (int A[][M], int n1, int n2){
int i,j;
for(i=0;i<n1;i++){
		for(j=0;j<n2;j++){
			cin >> A[i][j];
		}
}
}
void print (int A[][M], int n1, int n2){
int i,j;
for(i=0;i<n1;i++){
		for(j=0;j<n2;j++){
			cout << A[i][j] << " ";
		}
		cout << endl;
}
}
void transpose(int A[][M],int AT[][M],int m,int n){
int i,j;
for(i=0;i<m;i++){
		for(j=0;j<n;j++){
		AT[j][i]=A[i][j];
		}
		
}
}
void compute_matrixtranspose_matrix_product (int A[][M], int m, int n, int ATA[][M]){
int AT[n][M];
transpose(A,AT,m,n);
int i,j,k;
for(i=0;i<n;i++) {
for(j=0;j<n;j++){
			ATA[i][j] = 0;
	for(k=0;k<m;k++){
			ATA[i][j] += AT[i][k]*A[k][j];
			}
} 
} 
print(ATA,n,n); }

int main(){
int m,n;
cin>>m>>n;
int A[m][M];
get(A,m,n);
int ATA[n][M];
compute_matrixtranspose_matrix_product(A,m,n,ATA);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include <iostream>
using namespace std;
#define MAX 100

void compute_matrixtranspose_matrix_product(int a[][MAX], int m, int n, int ata[][MAX])
{int at[n][m];
for (int i=0; i<m; ++i) for (int j=0; j<n; ++j) at[j][i]=a[i][j];
for(int i=0;i<n;i++) {
for(int j=0;j<n;j++){
	ata[i][j] = 0;
	for(int k=0;k<m;k++){
		ata[i][j] += at[i][k]*a[k][j];
	}
}
}
}

int main()
{int m, n; cin>>m>>n;
int a[m][MAX], ata[n][MAX];
for (int i=0; i<m; ++i) for (int j=0; j<n; ++j) cin>>a[i][j];
compute_matrixtranspose_matrix_product(a, m, n, ata);
for (int i=0; i<n; ++i){ for (int j=0; j<n; ++j) cout<<ata[i][j]<<' '; cout<<'\n';}
return 0;
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
#define MAX 100
using namespace std;

void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]){
	for (int i = 0; i< n; i++){
		for (int j =0; j<n; j++){
			ATA[i][j]=0;
			for(int k = 0; k <m; k++){
				ATA[i][j]+= A[i][k]*A[j][k];
			}
		}
	}
}


void arrprint(int A[][MAX], int n, int m){
	for(int i=0; i<n; i++){
		for(int j =0; j<m; j++) cout << A[i][j] << " ";
		cout << endl;
	}
}

void arrinput(int A[][MAX], int n, int m){
	for(int i=0; i<n; i++){
		for(int j =0; j<m; j++) cin >>  A[j][i];
	}
}

int main(){
	int m,n;
	cin >> m >> n;
	int A[m][MAX],ATA[n][MAX];
	arrinput(A,m,n);
	compute_matrixtranspose_matrix_product(A,m,n,ATA);
	arrprint(ATA,n,n);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
#define MAX 100
using namespace std;
void compute_matrixtranspose_matrix_product(int A[][MAX],int m,int n,int ATA[][MAX]){
for(int i=0;i<m;i++){
     for(int j=0;j<n;j++){
            cin>>A[i][j];
               }
         }
int AT[MAX][MAX];
for(int i=0;i<m;i++){
   for(int j=0;j<n;j++){
         AT[j][i]=A[i][j];
                }
        }
for (int i=0;i<n;i++){
       for(int j=0;j<n;j++){
          ATA[i][j]=0;
          for(int k=0;k<m;k++){
         ATA[i][j]=ATA[i][j]+AT[i][k]*A[k][j];
                             }
                   }
 }

}
int main(){
int m,n;
cin>>m>>n;
int A[MAX][MAX];int ATA[MAX][MAX];
compute_matrixtranspose_matrix_product(A,m,n,ATA);
for(int i=0;i<n;i++){
      for(int j=0;j<n;j++){
    cout<<ATA[i][j]<<" ";
          }
cout<<endl;
}
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<simplecpp>
const int MAX=10;
void input(int m,int n,int A[][MAX]){
for(int i=0;i<m;i++){
for(int j=0;j<n;j++){
cin>>A[i][j];
}
}}
void display(int n,int A[][MAX]){
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
cout<<A[i][j]<<" ";}
cout<<endl;}
}
void compute_matrixtranspose_matrix_product(int A[][MAX], int m, int n, int ATA[][MAX]){
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
ATA[i][j]=0;
for(int k=0;k<m;k++){
ATA[i][j]=ATA[i][j]+((A[k][i])*(A[k][j]));
}
}
}
}
main_program{
int m,n;
cin>>m>>n;
int A[MAX][MAX];
int ATA[MAX][MAX];
for(int i=0;i<MAX;i++){
for(int j=0;j<MAX;j++){
A[i][j]=0;ATA[i][j]=0;
}
}
input(m,n,A);
compute_matrixtranspose_matrix_product(A,m,n,ATA);
display(n,ATA);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
#include<cmath>
#define MAX 500
using namespace std;
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX])
{
for(int i=0;i<m;i++)
{
for(int j=0;j<n;j++)
{
ATA[j][i]=A[i][j];
}
}
int Prod[MAX][MAX];
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
Prod[i][j]=0;
}
}
for(int i=0;i<m;i++)
{

for(int j=0;j<m;j++)
{
for(int k=0;k<m;k++)
{
Prod[i][j]=Prod[i][j]+A[k][j]*ATA[i][k];
}
}
}
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
cout<<Prod[i][j]<<" ";
}
cout<<endl;
}


}


int main()
{
int m,n;
cin>>m>>n;
int arr[MAX][MAX];
int arrt[MAX][MAX];
for(int i=0;i<m;i++)
{
for(int j=0;j<n;j++)
{
cin>>arr[i][j];
}
}
compute_matrixtranspose_matrix_product(arr,m,n,arrt);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: C
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
#define MAX 100
using namespace std;
void inp(int A[][MAX], int m, int n)
{
	for(int i = 0; i<m; i++)
	{
		for(int j = 0; j<n; j++)
		{
			cin>>A[i][j];
		}
	}
}

void compute_matrixtranspose_matrix_product(int A[][MAX], int m, int n, int ATA[][MAX])
{
	int AT[MAX][MAX];
	for(int i = 0; i<n; i++)
	{
		for(int j = 0; j < m; j++)
		{
			AT[i][j] = A[j][i];
		}
	}
	for(int i = 0; i<n; i++)
	{
		for(int j = 0; j< n; j++)
		{
			ATA[i][j] = 0;
			for(int k = 0; k<m; k++)
			{
				ATA[i][j] = ATA[i][j] + AT[i][k]*A[k][j];
			}
		}
	}
}

void printmatrix(int ATA[][MAX], int m, int n )
{
	for(int i = 0; i<m; i++)
	{
		for(int j = 0; j<n; j++)
		{
			cout << ATA[i][j] << " ";
		}
		cout << '\n';
	}
}
int main()
{
	int m, n;
	cin >> m >> n;
	int A[MAX][MAX]; int ATA[MAX][MAX];
	inp(A, m, n);
	compute_matrixtranspose_matrix_product(A,m,n,ATA);
	printmatrix(ATA, n, n);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
#include<cmath>
#include<cstdlib>
#include<cstring>
#define MAX 100
using namespace std;

void output(int A[MAX][MAX],int m,int n)
{
for(int i=0;i<m;i++) {
for(int j=0;j<n;j++){
cout << A[i][j] << " ";
}
cout << endl;}
}

void input(int A[MAX][MAX],int m,int n)
{
for(int i=0;i<m;i++) {
for(int j=0;j<n;j++){
cin >> A[i][j];
}}
}

void compute_matrixtranspose_matrix_product (int A[MAX][MAX], int m, int n, int ATA[MAX][MAX])
{
int AT[MAX][MAX];
for (int i=0;i<n;i++)
  {
  for(int j=0;j<m;j++)
   {
   AT[i][j]=A[j][i];
   }
  }
  
int i,j,k;
for(i=0;i<n;i++) {
for(j=0;j<n;j++){
	ATA[i][j] = 0;
	for(k=0;k<m;k++){
			ATA[i][j] += AT[i][k]*A[k][j]; 
			} 
} 
} 

}

int main(){
int m,n;
cin >>m >>n;
int A[MAX][MAX];
int ATA[MAX][MAX];
input(A,m,n);
compute_matrixtranspose_matrix_product(A,m,n,ATA);
output(ATA,n,n);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<simplecpp>
#define maxsize 100
void inparr(int a[][maxsize],int m, int n){
for (int i=0; i<m; i++){
for (int j=0; j<n; j++){
cout<<"enter row"<<i<<"enter coloumn"<<j<<"value";
cin>>a[i][j];
}
}cout<<endl;
}
void outarr(int a[][maxsize], int m,int n) {
for (int i=0; i<m;i++){
for (int j=0; j<n; j++){
cout<<a[i][j];
}cout<<endl;
}outarr(a,n,m);
}
void matrixmul (int a[][maxsize], int b[][maxsize], int m,int n){
int c[m][maxsize];
for(int i=0; i<m; i++){
for (int j=0; j<n; j++){
for (int k=0; k<n; k++){
 c[i][j] += a[i][k]*b[k][j];
}}cout<<endl;
}outarr (c,n,n);
}
main_program{
int m ;int n;
cin>>m>>n;
int a[m][maxsize], b[n][maxsize];
{
for (int i=0; i<m; i++){
for (int j=0; j<n; j++){
cin>>a[i][j];
b[j][i]=a[i][j];
}
}
outarr(b,n,m);
matrixmul (a,b,m,n);

}
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
# include <iostream>
using namespace std;
# define MAX 500
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]){
	int c[MAX][MAX];
	for (int i=0;i<m;i++){
		for(int j=0;j<n;j++){
			ATA[j][i]=A[i][j];
		}
	}
	for(int i=0; i<n;i++){
		for(int j=0; j<n; j++){
			c[i][j]=0;
			for (int k=0;k<m;k++){
				c[i][j]+=ATA[i][k]*A[k][j];
			}
		}
	}
	for (int i=0; i<n;i++){
		for (int j=0;j<n;j++){
			cout<<c[i][j];
			if (j<n-1) cout<<" ";
		}
		if (i<n-1) cout<<endl;
	}
}
void inputmatrix(int A[][MAX], int m, int n){
	for (int i=0;i<m;i++){
		for(int j=0;j<n;j++){
			cin>>A[i][j];
		}
	}
}
int main(){
	int m,n;
	cin>>m>>n;
	int A[MAX][MAX];
	int ATA[MAX][MAX];
	inputmatrix(A, m,n);
	compute_matrixtranspose_matrix_product(A, m, n, ATA);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include <iostream>
using namespace std;
int main(){
	int n;
	cin >> n;
	while (n!=0){
		if (n%10 != 0){
			cout << n%10;
		}
		n /= 10;
	}
	return 0;
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: C
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include<iostream>
using namespace std;
#define MAX 100
void print(int a[][MAX], int m, int n)
{
	for(int i=0;i<m;i++)
	{
		for(int j=0;j<n;j++)
		{
			cout<<a[i][j];
			if(j!=n-1) {cout<<" ";}
		}
		if(i!=m-1) {cout<<endl;}
	}
}
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX])
{
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<n;j++)
		{
			ATA[i][j]=0;
			for(int k=0;k<m;k++)
			{
				ATA[i][j]+=A[k][i]*A[k][j];
			}
		}
	}
	print(ATA,n,n);
}
int main()
{
	int m,n; cin>>m>>n;
	int A[MAX][MAX];
	for(int i=0;i<m;i++)
	{
		for(int j =0;j<n;j++)
		{
			cin>>A[i][j];
		}
	}
	int ATA[MAX][MAX];
	compute_matrixtranspose_matrix_product(A,m,n,ATA);

}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: A
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include <iostream>
using namespace std;

void input_2D(int a[][8], int m, int n){
    for(int i=0; i<m; i++){
        for(int j=0; j<n; j++) {
            int x;
            cin>>x;
            a[i][j]=x;
        }
    }
}

void display_2D(int a[][8], int m, int n){
    for(int i=0; i<m; i++){
        for(int j=0; j<n; j++) {
            cout<<a[i][j]<<" ";
        }
      cout<<endl;
    }
}
void transpose_matrix(int a[][8], int b[][8], int m, int n){
    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            b[i][j]=a[j][i];
        }
    }
}

void product_2D(int a[][8], int m, int n, int ata[][8]){
    int i,j,k;
    int b[n][8];
    transpose_matrix(a,b,m,n);
    for(i=0;i<n;i++) {
        for(j=0;j<n;j++){
			ata[i][j] = 0;
	          for(k=0;k<m;k++){
			    ata[i][j] += b[i][k]*a[k][j]; 
			} 
  } 
 }
 display_2D(ata,n,n);
}

int main(){
    int m,n;
    cin>>m>>n;
    int a[m][8];
    input_2D(a,m,n);
    int ata[m][8];
    product_2D(a,m,n,ata);
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B
Problem: Write a C++ program to take the dimensions of a matrix (m,n) as input from the user. The program should then take the matrix (let us call it A) itself as input from the user. Following this, the program should compute the product of the transpose of A with A (i.e. ATA of size n x n) and display the result. To accomplish this task, write a function of the form void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]).

Constraints
n is a positive integer, m,n <= 8

Student submission:
#include <iostream>
using namespace std;
#define MAX 100
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]){
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			ATA[j][i]=A[i][j];
		}
	}
	
}

int main(){
	int m,n;cin>>m>>n;
	int A[MAX][MAX],result[MAX][MAX],ATA[MAX][MAX];

	for(int i=0;i<m;i++){
		for(int j=0;j<n;j++){
			cin>>A[i][j];
		}
	}
	compute_matrixtranspose_matrix_product(A,n,m,ATA);
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			result[i][j]=0;
			for(int k=0;k<m;k++){
				result[i][j]+=A[k][j]*ATA[i][k];
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			cout<<result[i][j]<<' ';
		}cout<<endl;
	}
	return 0;
}

Grading criterion: quality of variable names
Rating A: good variable names
Rating B: ok variablenames
Rating C: poor naming of variables
Rating D: 0
Assigned grade: B