问编写算法的帮助

EN

foreach student S do
  foreach unassigned grade G do
    Add {G, S} to the solutions
    Compute the solution score
    If (this score > greater score so far) Then 
      Keep solution like this
      Mark G as assigned
    Else 
      Remove {G, S} from the solution
  Next
Next

// The number of grades and students
public static final int N = 10;

// The students and grades are just a suite of numubers
List<int> students = new ArrayList<int>(N);
List<int> grades = new ArrayList<int>(N);    
for (int i=0; i<N; ++i) {
  students.set(i, i);
  grades.set(i, i);
}

// Each score for a possible pair of grade student is stored in a matrix 
int[][] scores = new int[N][N];
for (int s=0; s<N; ++s) {
  for (int g=0; g<N; ++g) {
    scores[s][g] = students.get(s) * grades.get(g);
  }
}

// An association of student and grade
class Association {
  int student;
  int grade;
  int score;
  public Association(int student, int grade, int score) {
    this.student = student;
    this.grade = grade;
    this.score = score;
  }
}

// The solution
Stack<Association> solution = new Stack<Association>(N);