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<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: 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 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: 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;

         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: 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 =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: 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<=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: 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 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: 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++){
        
        cout<<"O";
        
        
        if(n/2!=0){

        for ( int j=0;j<n-i-1;j++){
            cout<<"XO";
        }
    }
    else{
        for ( int j=0;j<n-i-1;j++){
            cout<<"XO";
    }
    cout<<"O";
        
        
    }
    for(int j=0;j<i;j++){
            cout<<" ";

        }
  
    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<iostream>
using namespace std;
int main(){
    int n;
    cin>>n;
    char c='O';
    for(int i=1;i<=n;i++){
        for(int j=1;j<i;j++){
            cout<<" ";
        }
        c='O';
        for(int j=i;j<=n;j++){
            if(c=='O'){
                cout<<'O';
                c='X';
            }
            else if(c=='X'){
                cout<<'X';
                c='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;
    int i;
    cin>>n;
    cout<<"Enter a number";
    cout<<"The computed answer is";
{for(int i <= n; i = 1; i--)
 for(int j <= n-i; j = 0; j--)
 int no. columns=m
if(m/2=0){
    cout<<"O";
}
 if 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: 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,space,x,o;
    cin>>n;
    for(int i=0;i<n;i++){
        space=i;
        repeat(space){cout<<" ";}
        for(int j=0;j<n-i;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, i=0, p=1;
    cin >> n;
    for(i=0;i<=n;i++){
    repeat(i){cout << " ";};
    repeat(n-i){if(p==1)cout << "O";
    else cout << "X";
    p=(-1)*p;};
    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: B
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==1)
            cout<<"O";
            else 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 i = n;
    cout << " print a pattern with with 'n' rows ";
    cin >> i = n;

     n = no.of rows to be printed;
     each row begins with an 'O',followed by alternating 'X' and 'O';
     nth row contains 1 character;
     (n-1)th row contains 2 characters;" no.of charaters in each row decreses by 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{

    cout << "Enter a integer valued from 1 to 50"<<endl;
    int n;
    cin >> n;

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

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