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

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

      for(j=1;j<=n;j++){
        if(j<i && i!=1){continue;}

        if(pow(-1,j+i)>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>

int main(){
    int i, j, n;
    cin>>n;
    for(int i=n; i>0; i--){
        for(int j=0; j<(n-i); j++){
            cout<<" ";
        }
        for(int j=1; j<=i; j++){
            cout<<((j%2==1)?"O":"X");
        }
        cout<<endl;
    }
}

//assumption: output font is monospace

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 ch;
        int i = 0;
        repeat(n) {
                ch = 'O';
                repeat(i) {
                        cout << " " ;
                }
                repeat(n) {
                        cout << ch;
                        if (ch == 'O') ch = 'X';
                        else if (ch=='X') ch = 'O';
                }
                n --;
                i ++;
                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<=i;j++){
            cout << " ";
        }
        for(int j =0;j<(n-i);j++){
            int a = j%2;
            if (a==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<iostream>
using namespace std;

void Pattern(int n) {
    for(int i=n;i>0;i--) {
        for(int b=0;b<(n-i);b++) {
            cout<<" ";
        }
        if(i%2==1) {
            cout<<"O";
            for(int a=1;a<=(i/2);a++) {
                cout<<"XO";
            }
            cout<<endl;
        }
        else if(i%2==0) {
            for(int t=1;t<=(i/2);t++) {
                cout<<"OX";
            }
            cout<<endl;
        }
    }
}

int main() {
    int n;
    cin>>n;
    Pattern(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<iostream>
int main(){
    int n;
    std::cin>>n;
    for(int i=0;i<n;i++){
        for(int a=1;a<=n;a++){
            if(a<=i){
                    std::cout<<" ";
                    continue;
            }
            if(i%2==0){
                if(a%2==0) std::cout<<"X";
                else std::cout<<"O";
            }
            else{
                if(a%2==0) std::cout<<"O";
                else std::cout<<"X";
            }
        }
        std::cout<<std::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 o=1;
    int s=1;
    cin >> n;
    for (int r=n; r>=1; r--) {
        for (int c=1; c<=r; c++) {
            
            if (o==1 || o==3 || o==5 || o==7 ) {
            cout << "O";
        }
        else {
            cout << "X";
        }
        o=o+1;
        }
        cout << endl;
        repeat(s) {
            cout << " ";
        }
        s=s+1; 
        o=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;

         while (n%2==0){
                 for (int i=1; i<=n; i++){
                         for (int j=n;j>0;j--){
                                 if (j%2==0) cout<<"o";
                                 else cout<<"x";
                                }cout<<endl;
                                n--;

                 }

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

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