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=0;i<n;i++){
        for(int j=0;j<i;j++){
            cout<<" ";
        }
        for(int k=1;k<= n-i;k++){
            if(k%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;
    int k=n-1;
    for(int i=0;i<n;i++) {
        repeat(i){
            cout<<" ";
        }
        cout<<"O";
        if(k%2==1) {
            repeat((k-1)/2) {
                cout<<"XO";
            } cout<<"X"<<endl;
        } else {
            repeat(k/2) {
                cout<<"XO";
            } cout<<endl;
        }
        k=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 ; 
  char a = 'O' ; 
  char b = 'X' ;
  for(int i = 0 ; i < n ; i++) {
     repeat(i) {cout << " " ;}
     for(int j = 0 ; j < n-i ; j++) {
        if(j % 2 == 0) {
            cout << a ; 
        }
        else { cout << b;}
     }
       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 j=0;j<n;j+=1){
        for(int m=0;m<j;m+=1){
                cout<<" ";
            }
        for(int i=0;i<n-j;i+=1){
            
            if(i%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;
    for(int i=n;i>0;i--){
        if(i%2==0){
            repeat(n-i){
                cout<<" ";
            }
            repeat(i/2){
                cout<<"OX";
            }
            cout<<endl;

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

    
}

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 j=0;
        for(int i=n;i>0;i=i-1) {
                repeat(j) {
                        cout << " ";
                }
                j=j+1;
                if(i%2==0) {
                        for(int k=0;k<i/2;k++) {
                                cout << "OX";
                        }
                }
                 if(i%2==1) {
                        cout << "O";
                        for(int l=0;l<(i-1)/2;l++) {
                                cout << "XO";
                        }
                }
                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-1;j++){
            cout<<" " ;
        }
        if((n-i)%2==0){
            for(int j=0;j<((n-i)/2);j++){
                cout<<"OX";
            }
        }
        else {
                for(int j=0;j<(n-i)/2;j++){
                    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;
        cout << "Enter number of rows n:";
cin >> n;
repeat(n){
int m;
{
if(m%2 == 0){
        cout << "X";
}
else{
        cout << "O";

}
n-=n;
}
}

}

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;
    if (n%2==1){
    for(int i=1; i<=n; i++){
        char a=' ', b='O', c='X';
        for (int j=0; j<i; j++) cout << a;
        if (i%2!=0){
            for (int j=1; j<=(n-i)/2; j++) cout << b << c;
            cout << b<< endl;
        }
        else {
            for (int j=1; j<=(n-i)/2 + 1; j++) cout << b << c;
            cout<< endl;
        }
    }
    }
    else{
        for(int i=1; i<=n; i++){
            char a=' ', b='O', c='X';
            for (int j=0; j<i; j++) cout << a;
            if (i%2==0) {
                for (int j=1; j<=(n-i)/2; j++) cout << b << c;
                cout << b<< endl;
            }
            else{
                for (int j=1; j<=(n-i)/2 + 1; j++) cout << b << c;
                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;
    if (n%2==0) {
        for(int i=1;i<=n/2;i++)
{   repeat(i-1){
    cout<<" ";
}

    repeat((n/2)-i+1){
        cout<<"OX";
    }
    endl;
    repeat((n/2)-i) {
        cout<<" "<<"O";
    }
    repeat((n-1)/2) {
    cout<<"XO";
    }
    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
repeat (5){
for(i=1;i<=(n-1)\2;i++){
 cout<<" ":
}
for(i=1;i<=n;i++){
    cout<<"OX"
}
}
}

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 = 0;
    cin >> n;

    for(int i = 0; i < n; i++){
        repeat(i){
            cout << " ";
        }
        for(int k = n; k > i; k--){
            if(n%2 == 0){
                if(k%2 == 0){
                    cout << "O";
                }else{
                    cout << "X";
                }
            }else{
                if(k%2 == 1){
                    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