1. Description

Write your output in problem P0005 to a file called "triangle.txt"

1
1-1
1-2-1
1-3-3-1
...
1-9-...-9-1

2. Input & Output

Input: No input for this problem.

Output:

• Click “递交 / Submit” button on the right side
• First paste your code
• Compress your triangle.txt file to .zip format
• Click "Choose File" to upload your zip file