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

    }
    
}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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<i;j++){
            cout<<" ";
        }
        for (int j=1;j<n-i+1;j++){
            if (j%2==0){
                cout<<"X";
            }
            else {
                cout<<"O";
            }
        }
        cout<<endl;
    }
}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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++)
        {   
            int a = 1;
            for(int j = 0;j < n; j++)
                {
                    if (j < i){cout<<" ";}
                    else{
                        if((a%2) == 1){cout<<"O";}
                        if((a%2) == 0){cout<<"X";}
                        a += 1;}
                    }
                    
                cout<<endl;
                
        }


}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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++){
    
if (n%2 != 0){
repeat(i-1){cout<<" ";}
repeat((n+1-i)/2){cout <<"OX";}
if (i%2 != 0){
    cout <<"O";
}
}

else{
repeat (i-1){cout << " ";}
repeat((n+1-i)/2){cout<<"OX";}
if(i %2 ==0){ cout<<"O";}



}


cout<<endl;
}


}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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++){
        
        repeat(i){cout<<" ";}
        for (int j=1; j<=n-i;j++){
            if(j%2==1){cout<<"O";}
            else if(j%2==0){cout<<"X";}
        }
        cout<<endl;
    }
}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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,i;
    cin>>n;
    for(i=0; i<=n; i++){
        if(n%2==0 && i%2!=0 && i!=n){
            repeat(i-1){
                cout<<" ";
            }
            repeat((n-i+1)/2){
                cout<<"OX"<<endl;
            }
        }
        if(n%2==0 && i%2==0 && i!=n){
            repeat(i-1){
                cout<<" ";
            }
            repeat((n-i)/2){
                cout<<"OX";
            }
            cout<<"O"<<endl;
        }
        if(n%2!=0 && i%2!=0 && i!=n){
            repeat(i-1){
                cout<<" ";
            }
            repeat((n-i)/2){
                cout<<"OX";
            }
            cout<<"O"<<endl;
        }
        if(n%2!=0 && i%2==0 && i!=n){
            repeat(i-1){
                cout<<" ";
            }
            repeat((n-i+1)/2){
                cout<<"OX"<<endl;
            } 
        }
    }
}

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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-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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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,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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
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++){

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

Grading criterion: Declaration of variables
Rating A: correctly declares the variable n and other variables as required
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: A