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

Each row of the pattern must follow these rules:

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

Input:
An integer n representing the number of rows.

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

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

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

Student submission:
#include<simplecpp>
main_program{
    int n;
    cin>>n;
    if (n%2==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: 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
repeat (5){
for(i=1;i<=(n-1)\2;i++){
 cout<<" ":
}
for(i=1;i<=n;i++){
    cout<<"OX"
}
}
}

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 = 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: 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;
char ch O;
cin>>n;
for(int i=1;i<n;i++){
        for(int j=1;j<n-1;j--)
                cout<<" ";

for(int k=1;k<n;k++)
cout<<ch;
ch=ch+7}}

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

Each row of the pattern must follow these rules:

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

Input:
An integer n representing the number of rows.

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

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

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

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

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

Each row of the pattern must follow these rules:

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

Input:
An integer n representing the number of rows.

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

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

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

Student submission:
#include<simplecpp>

main_program{
    int n;
    cin>>n;

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

    for(i=0;i<n;i++){
        for(j=1;j<=n;j++){
            if(j>i){
            if((j+i)%2==1){
                cout<<"O";
            }
            else{
                cout<<"X";
                }
            }
            else{
                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: 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;
    int space=0;
    int ncopy=n;
    for(int i=0;i<n;i++){
        for (int k=0;k<space;k++) cout <<" ";
        for (int k=0;k<ncopy;k++){
            if (k%2==0) cout<< "O";
            else cout<< "X";
        }
        cout<<endl;
        space+=1;
        ncopy-=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;
    if(n%2!=0){
        for(int k=0;n>0;k++,n-=2){
        for(int i=0;i<k;i++)cout<<" ";
        cout<<"O";
        int m = ((n-1)/2 );
        for(int i=0;i<m;i++)cout<<"XO";
        cout<<endl;
        k++;
        for(int i=0;i<k;i++)cout<<" ";
        for(int i=0;i<m;i++)cout<<"OX";
        cout<<endl;
    }
    }
    else {
        for(int k=0;n>0;k++,n-=2){
        for(int i=0;i<k;i++)cout<<" ";
        int m = (n/2 );
        for(int i=0;i<m;i++)cout<<"OX";
        cout<<endl;
        k++;
        for(int i=0;i<k;i++)cout<<" ";
        for(int i=0;i<(m-1);i++)cout<<"OX";
        cout<<"O";
        cout<<endl;
        }
    }
}

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

Each row of the pattern must follow these rules:

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

Input:
An integer n representing the number of rows.

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

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

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

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

    for(int i=0; i<n; i++){
       repeat(i){
        cout<<" ";
       }
       for(int j=0;j<x;j++){
            if(j%2==0){
                cout<<"O";
            }
            else{
                cout<<"X";
            }
        } 
    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<iostream>
using namespace std;
int main(){
    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<<"X";
            else
            cout<<"O";
        }
        cout<<endl;
    }
    return 0;
}

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

Each row of the pattern must follow these rules:

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

Input:
An integer n representing the number of rows.

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

Example:

Input:
5

Output:
OXOXO
 OXOX
  OXO
   OX
    O

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

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

Grading criterion: Spaces
Rating A: Correctly prints the spaces before the pattern
Rating B: Some issue
Rating C: Major issue
Rating D: 0
Assigned grade: 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 = 0, spaces = 0;
	cin>>n;
	for(int i = 0; i < n; i++){
		spaces = i;
		for(int j = 0; j < spaces; j++)
			cout<<" ";

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