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;
const int MAX=100;
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];
}
}
}

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

void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n,int ATA[][MAX]){
 int AT[MAX][MAX];
 transpose(A,AT,m,n);
 
 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;	
int A[MAX][MAX];
int ATA[MAX][MAX];
cin>>m>>n;
inputmatrix(A,m,n);

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: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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;

const int maxi=10;

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


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

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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<bits/stdc++.h>
#define MAX 100

using namespace std;

void get2Darray (int A[][MAX], int n1, int n2)
{
	for(int i=0;i<n1;i++)
	{
		for(int j=0;j<n2;j++)
			cin >> A[i][j];
	}
}

void matrix_multiply (int A[][MAX], int B[][MAX], int C[][MAX], int nr1, int nc1, int nr2, int nc2)
{
	for(int i=0;i<nr1;i++) 
	{
		for(int j=0;j<nc2;j++)
		{
			C[i][j] = 0;
			for(int k=0;k<nc1;k++)
				C[i][j] = C[i][j] + A[i][k]*B[k][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];
	}
	matrix_multiply(AT, A, ATA, n,m,m,n);
	
	return;
}

int main()
{
	int m,n;
	cin >>m>>n;
	int A[MAX][MAX];
	get2Darray(A,m,n);
	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;
	}
	return 0;
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 8
void inparr(int a[][maxsize],int m,int n)
	{
	for (int i=0;i<m;i++)
		{
		for (int j=0;j<n;j++)
			{
			cin>>a[i][j];
			}
		}
	}
	
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<<"\n";
		}
	}
	
void matrixmulti(int a[][maxsize],int m,int n,int c[][maxsize])
{
	int b[n][maxsize];
	for (int i=0;i<m;i++)
		{
		for (int j=0;j<n;j++)
			{
			b[j][i]=a[i][j];
			}
		}
	for(int p=0;p<n;p++)
		{
		for(int q=0;q<n;q++)
			{
			c[p][q]=0;
			for(int k=0;k<m;k++)
				{
				c[p][q]+=b[p][k]*a[k][q];
				}
			}
		}
	outarr(c,n,n);
}

main_program{
int m,n;
cin>>m>>n;
int a[m][maxsize];
int c[n][maxsize];
inparr(a,m,n);
matrixmulti(a,m,n,c);
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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;
const int 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<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++)
{
int x=0;
for(int k=0;k<m;k++)
{
x+=at[i][k]*a[k][j];
}ata[i][j]=x;
}}}
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);
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
cout<<ata[i][j]<<" ";
}
cout<<endl;
}}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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;
#define MAX 8

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

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

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

int main(){
int m,n; cin>>m>>n;
float A[MAX][MAX];
float ATA[MAX][MAX];
int p,q; p=q=0;
for(p=0; p<n; p++){
	for(q=0;q<n;q++) ATA[p][q] = 0;
	}
cin_matrix(A,m,n);
compute_matrixtranspose_matrix_product(A,m,n,ATA);
cout_matrix(ATA,n,n);
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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;

#define max 100

void transpose(int A[][max],int AT[][max],int m,int n){
    for(int j=0;j<n;j++){
        for(int i=0;i<m;i++){
            AT[j][i]=A[i][j];
        }
    }
}

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

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

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 81

using namespace std;
void compute_matrixtranspose_matrix_product (int A[][MAX], int B[][MAX], int n, int m);

void DISPLAYDATA(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]<<" ";
  }
 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<m;i++)
 {
   for (int j=0;j<n;j++) AT[j][i]=A[i][j];
 }
  compute_matrixtranspose_matrix_product(AT, A, n, m);
}

void compute_matrixtranspose_matrix_product(int A[][MAX], int B[][MAX], int n, int m)
{
int C[MAX][MAX];
 int nr1=n;
  int nc1=m;
 int nr2=m;
int nc2=n;
int i,j,k;
 for(i=0;i<nr1;i++) 
  {
   for(j=0;j<nc2;j++)
    {
     C[i][j] = 0;
     for(k=0;k<nc1;k++)
      {
       C[i][j] += A[i][k]*B[k][j];
      }
    }
   }
DISPLAYDATA(C,n,n);
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 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 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<<" ";
	}
      cout<<endl;
}
}

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

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

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

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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;
#define MAX 100 
void compute_matrixtranspose_matrix_product(int AB[][MAX], int m, int n, int ATA[][MAX]){
 int AT[MAX][MAX];
for(int i=0;i<m;i++){
for(int j=0;j<n;j++){
AT[j][i]=AB[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]*AB[k][j];
                        }
}
}
        for(int i=0;i<n;i++){
                for(int j=0; j<n; j++){
                        cout<<ATA[i][j]<<" ";
                } cout<<endl;
        }
}
int main(){
        int m; int n;  cin>>m>>n;
        int AB[MAX][MAX];int ATA[MAX][MAX];
        for(int i=0;i<m;i++){
                for(int j=0; j<n; j++){
                        cin>>AB[i][j];
                }
        }
        compute_matrixtranspose_matrix_product(AB,m,n,ATA);

        return 0;
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 R[][MAX]){
int B[n][m];
	for(int i=0; i<m; i++){
		for(int j=0; j<n; j++){
		B[j][i]=A[i][j];
		}
	}
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
		R[i][j]=0;
		for(int k=0; k<m; k++){
		R[i][j]=R[i][j]+B[i][k]*A[k][j];
		}
		}
	}
	return;
}
int main(){
int m,n;
cin>>m>>n;
int A[m][100];
int R[n][100];
	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, R);
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
		cout<<R[i][j]<<" ";
		}
	cout<<endl;
	}
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 input(int A[][MAX],int m, int n)
{
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
cin >> A[i][j];
}
}
}
void compute_matrixtranspose_matrix_product(int A[][MAX],int m, int n)
{
int At[MAX][MAX], AAt[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<m;j++)
{
AAt[i][j]=0;
for(int k=0;k<m;k++)
{
AAt[i][j]=AAt[i][j]+A[i][k]*At[k][j];
}
}
}
}
int main()
{
int n,m;
int A[MAX][MAX];
int At[MAX][MAX];
int AAt[MAX][MAX];
cin >> m >> n;
input( A, m,  n);
compute_matrixtranspose_matrix_product(A, m, n);
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
cout << AAt[i][j] << " ";
}
cout << '\n';
}
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 9
void compute_matrixtranspose_matrix_product(int A[][MAX],int m,int n,int ATA[][MAX]){
	//first we will find transpose
	int AT[n][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++){
				int x=AT[i][k]*A[k][j];
				ATA[i][j]=ATA[i][j]+x;
				}
			}
		}
	}
void input(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 output(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]<<' ';
                        }
		cout<<endl;
                }
	}
int main(){
int m,n;
cin>>m;cin>>n;
int A[m][MAX],ATA[n][MAX];
input(A,m,n);
compute_matrixtranspose_matrix_product(A,m,n,ATA);
output(ATA,n,n);
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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 8
using namespace std;

void input_matrix(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 print_matrix(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(!(i==m-1 && j==n-1)) cout<< " ";
		}
		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];
			}
		}
	}
}

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

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
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]){
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 k=0; k < n; k++){
for (int j=0; j < m; j++){
ATA[i][k] = ATA[i][k] + AT[i][j]*A[j][k];
}}}
for (int i=0; i <n; i++){
for (int j=0; j < n; j++){
cout << ATA[i][j] << " ";
}
cout << endl;
}
}
int main(){
int m,n;
cin >> m >> n;
int A[MAX][MAX];
for (int a=0; a<m; a++){
for (int b=0; b< n; b++){
cin >> A[a][b];
}}
int ATA[MAX][MAX];
for (int a=0; a<n; a++){
for (int b=0; b< n; b++){
ATA[a][b] = 0;
}}
compute_matrixtranspose_matrix_product(A, m, n, ATA);
}

Grading criterion: Overall calculation is in the function.
Rating A: Function written as per given signature
Rating B: Function written but not as per signature, or some other partially wrong
Rating C: Not done in function
Rating D: 0
Assigned grade: A