I am little new here. I have few doubts

- What is meant by partially accepted solution? Is it like my code is correct but not optimal? please explain.
- Here are the subtasks given in the problem

### Constraints

```
* 1≤T≤10^5
* 1≤TS≤10^18
```

### Subtasks

```
**Subtask #1 (20 points):** T,TS≤100
**Subtask #2 (80 points):** original constraints
```

I am getting full points in subtask #1 but 0 in subtask #2. What is the reason for that??