Best students
In Germany, the grading system is very different. The best grade is 1 and the worst one is 6.
German Grade | Grade Description | US grade |
|---|---|---|
1 – 1.5 | Very Good | A |
1.6 – 2.5 | Good | B |
2.6 – 3.5 | Satisfying | C |
3.6 – 4.9 | Sufficient | D |
5.0 – 6.0 | Insufficient | F |
Given many student grades, you are asked to calculate how many students are the most hard-working and have a grade in range [1; 1.5].
The program should stop execution as soon as the grade is outside the range [1; 6].
The output should contain the number of students who are in the given range.
Input | Output |
|---|---|
4 | 3 |
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB