CodeGraderBench/CodeGraderBench huggingface dataset:
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include <simplecpp>
main_program {
        int n;
        cin>> n;
        for(int i=1; i<=n; i++) {
                for(int j=1;j<=i-1; j++) {
                        cout<<" ";
                }
                for(int j=1; j<=n-i+1; j++) {
                        if(j%2!=0) {
                                cout<< "O";
                        } else {
                                cout<<"X";
                        }
                }
                cout<<endl;
        }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
main_program {
        int n;
        cin >> n;
        int k = 1;

        for(int i=1; i<=n; i++){
                for(int j=1; j<=n; j++){
                        if(j>=i && k==1){
                                cout << "O";
                                k=0;
                        }
                        else if(j<i){
                                cout << " ";
                        }
                        else if(j>=i && k==0) {
                                cout << "X";
                                k=1;
                        }
                }
                cout << '\n';
                k=1;
        }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>

main_program{

    int n;
    cin>>n;
    int i,j;
    for(i=0;i<n;i++)
    {
        for(j=0;j<i;j++)
        cout<<" ";
        if((n-i)%2==1)
        {
            repeat((n-i-1)/2)
            cout<<"OX";
            cout<<"O";
        }
        else
        {
            repeat((n-i)/2)
            cout<<"OX";
        }
        cout<<endl;
    }

}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include <simplecpp>

main_program {
    int n;
    int i=0;
    cin >> n;
    if(n % 2 == 0  && n>=1 && n<=50){
        repeat(n/2){
            cout << "OX" <<endl;
        }
        repeat(i){
            cout << " " <<endl;
        }
                i=i+1;
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: C
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
main_program{
    int n,i,j;
    cin>>n;
    if((n%2)==0)
    {
        for(j=1;j<=n;j++)
        {
         if((j%2)==0)
         {
            for(i=1;i<=(j-1);i++)
            {
                cout<<" ";
            }
            for(i=1;i<=((n-j)/2);i++)
            {
             cout<<"OX";
            }
            cout<<"O"<<endl;
         }
         else
         {
            for(i=1;i<=(j-1);i++)
            {
                cout<<" ";
            }
            for(i=1;i<=((n-j+1)/2);i++)
            {
                cout<<"OX";
            }
            cout<<endl;
         }
        }
        
    }
    else
    {
        for(j=1;j<=n;j++)
        {
         if((j%2)!=0)
         {
            for(i=1;i<=(j-1);i++)
            {
                cout<<" ";
            }
            for(i=1;i<=((n-j)/2);i++)
            {
             cout<<"OX";
            }
            cout<<"O"<<endl;
         }
         else
         {
            for(i=1;i<=(j-1);i++)
            {
                cout<<" ";
            }
            for(i=1;i<=((n-j+1)/2);i++)
            {
                cout<<"OX";
            }
            cout<<endl;
         }

    }
}
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

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

int main(){
    int n;
    cin >> n;
    for (int i = 0; i <= n; i++){
        for (int j = 0; j < 5-i; j++){
            if (j%2 == 0){
                cout << "O";
            } else {
                cout << "X";
            }
            
        }
           cout << endl;
    }
    return 0;
 }

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: C
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
 
main_program{
 int n ;
 cin >> n ;

 for( int i=0 ; i<=n ; i++){

  cout <<"  " ;
  if (i!=n ){
  for (int k = n-i;k>0;k--){
    cout<<"OX";
  } 
  cout<<endl;}
  else { cout<< "O";
  cout<< endl;}
 }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: C
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
main_program{
    int n;
    cin >> n;
    for(int i=0;i<n;i++){
          repeat(i){cout << " ";}
          if((n-i)%2==0)  {repeat((n-i)/2){cout << "OX";}}
          else if((n-i)%2==1)  {
                    repeat((n-i-1)/2){cout << "OX";}
                    cout << "O";                  }
        
         cout << endl;
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
main_program{
	int n;
	cin>>n;
	
	for(int i=1;i<=n;i++){
		for(int j=1;j<=i;j++){
			cout<<" ";
		}
		
		if(i%2!=0) {
			for(int j=i;j<=n;j++){
		
				if(j%2!=0) cout<<"O";
				else cout<<"X";
						
			}
		}
		
		if(i%2==0) {
			for(int j=i;j<=n;j++) {
			
				if(j%2!=0) cout<<"X";
				else cout<<"O";
				
			}
		}
		
			
		cout<<endl;
		}	
		
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include <simplecpp>
main_program {
    int n;
    cin >> n;
    if (n%2==1) {
    for (int i=1; i<=n; i++) {
        repeat(i-1) {
            cout << " ";
        }
        if (i%2==1) {
            repeat((n-i)/2) {
                cout << "O";
                cout << "X";
            }
            cout << "O" << endl;
        }
        if (i%2==0) {
            repeat((n-i)/2 + 1) {
                cout << "O";
                cout << "X";
            }
            cout << " " << endl;
        }
    }
}
    if (n%2==0) {
    for (int i=1; i<=n; i++) {
        repeat(i-1) {
            cout << " ";
        }
        if (i%2==0) {
            repeat((n-i)/2) {
                cout << "O";
                cout << "X";
            }
            cout << "O" << endl;
        }
        if (i%2==1) {
            repeat((n-i)/2 + 1) {
                cout << "O";
                cout << "X";
            }
            cout << " " << endl;
        }
    }
}
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include <simplecpp>
main_program{
    int n;
    cin >>n;
    for(int i = 0; i<n; i++){
        bool isO = true;
        repeat(i) cout<<" ";
        repeat(n-i){
            if(isO){
                cout<<"O";
                isO =false;
            }   
            else{
                cout<<"X";
                isO =true;
            }
        }
        cout <<endl;
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>
char print_letters(int num_O , int num_X ,  int num_spaces) {
   if (num_O =='1') { cout<<"O";}
   if (num_X=='1') { cout<<"X"; }
   if (num_spaces=='1') { cout<<" "; }
   cout<<" "<<"O"<<"X";
}
main_program{
    int num_O=0;
    int num_X=0;
    int num_spaces=0;
    int n;
    cin>>n;
    for(int i=0;i<n;i++) {
        num_O = n-1-i;
        num_X = n-2-i;
        num_spaces = i-1;
        cout<< print_letters(num_O,num_X , num_spaces);
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: C
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include<simplecpp>

main_program{

    int n;
    cin>>n;

    for(int i=0;i<n;i++){
        for(int j=1;j<=i;j++)//spaces
        {
            cout<<" ";
        }
        for(int k=i;k<n;k++)//circles
        {
            if((k+i)%2==0){
            cout<<"O";
            }
            else if((k+i)%2!=0){
                cout<<"X";
            }
        }
    cout<<endl;
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A
Problem: You are required to write a C++ program that prints a right-aligned pattern using the uppercase characters O and X.

Each row of the pattern must follow these rules:

1. The pattern consists of n rows.
2. The first row contains n characters, and each next row contains one less character than the previous row.
3. Every row must start with the character O.
4. The characters must alternate between O and X (O X O X ...).
5. The pattern must be right-aligned, meaning each row is preceded by spaces so that the last characters line up vertically.
6. There must be no spaces between O and X characters.
7. Only print the pattern. Do not print any extra messages, prompts, or labels.

Input:
An integer n representing the number of rows.

Output:
Print the right-aligned alternating pattern of O and X.

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

Important Notes:
- Do not print messages like "Enter a number" or "The output is".
- Use cout only to print the pattern.
- Do not hard-code the output.
- Do not add extra spaces except those needed for right alignment.

Student submission:
#include <simplecpp>
main_program{
    int n;
    cin>>n;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
if (i>j){
    cout<<" ";
}
else if (i<=j && (i+j)%2==0){
    cout<<"O";
}
else {
    cout<<"X";
}
        }
        cout<<endl;
    }
}

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A