C program classes this semester, we have arranged eight programming tasks, every time out of ten; Plus a power explanation program scored 20 points, 100 points, 70 students grades, as the end of the course, the teacher to enter each of the students of various grades, and calculate the total scores of each student's grades, and according to the total score from high to low, finally, the number of statistical total outstanding (90 points) or higher and the number of failed the performance (& lt; 60 points), according to the above, please describe programming,

Requirements:

1) the scores of type integer;

2) enter the scores, calculation of each student's overall function; (10)

3) have the function of overall sort; 10)

4) have failed the statistical total outstanding and the number of features; (10)

5) program can be run correctly; (10)

6) program has characteristics, such as the algorithm has a characteristic, use function, pointer, etc. (10 points)