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>
#define MAX 100
using namespace std;
void transpose(int A[][MAX], int A_T[][MAX], int n1, int n2){
    for (int i=0; i<n1;i++){
        for (int j=0;j<n2;j++){
            A_T[j][i]=A[i][j];
        }
    }
}
void matrix_multiply (int A[][MAX], int B[][MAX], int **C, int nr1, int nc1, int nr2, int nc2){
if (nc1 != nr2) { cout << "dimension mismatch"; return;}
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];
			} 
} 
}
}
void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]){
    transpose(A,ATA,m,n);
    int **C=new int*[n];
    for (int i=0;i<n;i++){
        C[i]=new int[n];
    }
    matrix_multiply(ATA,A,C,n,m,m,n);
    for (int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cout<<C[i][j]<<" ";
        }
        cout<<endl;
    }
    for (int i=0;i<n;i++){
        delete []C[i];
    }
    delete []C;
}
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: 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>
#include<cstring>
using namespace std;
void compute_matrixtranspose_matrix_product (int A[][100], int m, int n, int ATA[][100])
  {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][j]*A[k][i];}
        }
        }
        }
    
 
  int main()
  {int m,n;
 
    
    cin>>m>>n;
    int A[100][100];
    for(int i=0;i<m;i++){
    for(int j=0;j<n;j++){
    
    cin>>A[i][j];}
    }
    int ATA[100][100];
   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 100

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

void output (int A[][MAX], 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 matrix_multiply (int A[][MAX], int B[][MAX], int C[][MAX], int nr1, int nc1, int nr2, int nc2){
if (nc1 != nr2) { cout <<"dimension mismatch"; return;}
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];
			}
}
}
}

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

void compute_matrixtranspose_matrix_product (int A[][MAX], int m, int n, int ATA[][MAX]){
int B[MAX][MAX];
transpose(A,B,m,n);
matrix_multiply(B,A,ATA,n,m,m,n);
output(ATA,n,n);
}

int main(){
int m,n;
cin>>m>>n;
int A[MAX][MAX], ATA[MAX][MAX];
input(A,m,n);
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<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 opt (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;
 }
}
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 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 ATA[MAX][MAX];
 inp (A, m, n);
 compute_matrixtranspose_matrix_product (A, m, n, ATA);
 opt (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 b[n][m];
for(int i=0;i<m;i++){
for(int j=0;j<n;j++){
b[j][i]=A[i][j];}
}
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]+=b[i][k]*A[k][j];
}
}}
for(int s=0;s<n;s++){
for(int t=0;t<n;t++){
cout<<ATA[s][t]<<" ";}
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 ATA[max][max];
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<iostream>
using namespace std;


void compute_matrixtranspose_matrix_product (int a[][100], int m, int n, int ata[][100]){
int at[100][100],b;
b=0;
for(int y=0;y<m;y++){for(int j=0;j<n;j++){at[j][y]=a[y][j];}}
for(int i=0;i<n;i++){for(int j=0;j<n;j++){for(int k=0;k<m;k++){
					b=b+at[i][k]*a[k][j];
				}ata[i][j]=b;
				  b=0;
		}
	}

//for(int i=0;i<n;i++){for(int j=0;j<m;j++){cout<<at[i][j];
  //              }cout<<endl;}
}








int main (){

	int m,n;
	int a[100][100],ata[100][100];
	cin>>m>>n;
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<<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_array_values(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]+=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<<'\n';}
}
int main(){
int m,n;
cin>>m>>n;
int A[max][max],ATA[max][max];
input_array_values(A,m,n);
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 <iostream>
using namespace std;
const int maxim=8;
void compute_transposematrix_matrix_product(int A[maxim][maxim],int m,int n,int ata[maxim][maxim])
{
 int B[maxim][maxim];
 for(int i=0;i<n;i++)
 for(int j=0;j<m;j++)
 B[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]+=B[i][k]*A[k][j];
        }
    }
 }
}
void print_matrix(int ata[maxim][maxim],int n)
{
 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;
int A[maxim][maxim],B[maxim][maxim],ata[maxim][maxim];
cin>>m>>n;
for(int i=0;i<m;i++)
for(int j=0;j<n;j++)
cin>>A[i][j];
compute_transposematrix_matrix_product(A,m,n,ata);
print_matrix(ata,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 1000

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];
    }
  }
}
}

void f(){
int n,m;
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 ATA[n][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;
}
}

int main(){
f();
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>
using namespace std;
#define MAX 100

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 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];}
}

}

}

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++)
{if (i==m-1 && j==n-1) cout<<A[i][j];
else {cout<<A[i][j]<<" ";}}
cout<<endl;}
}

int main()
{
int m,n;
cin>>m>>n;

int A[MAX][MAX],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 8
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];
		}
	}
	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]; // dot product of i-th row of A and j-th column of B
			} // close innermost for loop (on k)
		} // close middle for loop (on j)
	} // close outer for loop (on i)
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<n;j++)
		{
			cout<<ATA[i][j];if(j-n+1)cout<<" ";
		}
		if(i-n+1)cout<<endl;
	}
}

int main()
{
	int m,n;
	cin>>m>>n;
	int input[MAX][MAX];
	for(int i=0;i<m;i++)
	{
		for(int j=0;j<n;j++)
		{
			cin>>input[i][j];
		}
	}
	int ATA[MAX][MAX];
	compute_matrixtranspose_matrix_product(input,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>
using namespace std;
#define MAX 8

void order(int &m, int &n){
	cin >> m >> n;
}

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 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] << " ";
		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++){
			int k = 0;
			for(int l=0; l<m; l++) k += A[l][i]*A[l][j];
			ATA [i][j] = k;
		}
	}
	print(ATA, n, n);
}

int main(){
	int m, n;
	order (m, n);
	int A[m][MAX], ATA[n][MAX];
	input(A, m , n);
	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<iostream>
using namespace std;
int  m,n;
cin>>m>>n;
int A[m][n];
for(int i=o;i<m;i++){
for(int j=0;j<n;j++)
cin>>A[i][j];
}
A[0][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: 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>
#include<cmath>

using namespace std;

int main(){
int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++)
	{
	cin>>a[i];
	}
int c[n];
for(int i=0;i<n;i++)
	{
	c[i]=1;
	}
for(int i=0;i<n;i++)
	{
	for(int j=(i+1);j<n;j++)
		{
		if(a[i]==a[j])
		{
		c[i]++;
		}
		}
	}
int max=0;
for(int i=1;i<n;i++)
	{
	if(c[max]<c[i]){max=i;}
	}

cout<<a[max]<<" "<<c[max];
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: 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 matrixmultiply(int ATA[][max],int A[][max],int C[][max],int n,int m){
  int i,j,k;
  for(i=0;i<n;i++){
    for(j=0;j<n;j++){
      C[i][j]=0;
      for(k=0;k<m;k++){
        C[i][j]+=ATA[i][k]*A[k][j];
        }
       }
      }
}        
void compute_matrixtranspose_matrix_product(int A[][max],int m,int n,int ATA[][max]){
  int C[n][max];
 for(int i=0;i<n;i++){
   for(int j=0;j<m;j++){
     ATA[i][j]=A[j][i];}}
  matrixmultiply(ATA,A,C,n,m);
  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[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);
   }

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 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 display_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] << ' ';
		cout <<'\n';
	}
}

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][j]*A[k][i];
		}
	}
}

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