#include <stdio.h>


void saveMatrixToFile(FILE *outF, int studentMarks[30][11]) {
    for (int i = 0; i < 30; i++) {
        fprintf(outF, "Student #d", i + 1);
        for (int j = 0; j < 10; j++) {
            fprintf(outF,"%d ", studentMarks[i][j]);
        }
        fprintf(outF," : negative marks = %d", studentMarks[i][11]);
    }

}
void loadMatrixFromFile(FILE *inF, int studentMarks[30][11]) {
    for (int i = 0; i < 30;i++) {
        for (int j = 0; j < 10; j++) {
            fscanf(inF, "%d", &studentMarks[i][j]);
        }
    }
}

int countNegativeMarks(int *marks) {
    int count = 0;
    for(int i = 0; i < 10; i++){
        if (marks[i] < 4){
            count++;
        }
    }
    return count;
}
void main() {

    FILE *inF = fopen("D:\\University\\students_marks.txt", "r");
    FILE *outF = fopen("D:\\University\\output.txt", "w");
    int studentMarks[30][11];
    loadMatrixFromFile(inF, studentMarks);

     for (int i = 0; i < 30; i++ ){
         studentMarks[i][11] = countNegativeMarks(studentMarks[i]);
     }
     for (int i = 0; i < 30; i++) {
         printf("Student #%d: ", i + 1);
         for (int j = 0; j < 10; j++) {
             printf("%d, "
                    "", studentMarks[i][j]);
         }
         printf(" : negative marks = %d\n", studentMarks[i][11]);
     }
    saveMatrixToFile(outF, studentMarks);
      fclose(inF);
     fclose(outF);
}