PVHOI 5 bài 4 - Vẽ cây trên vòng tròn (70 điểm)

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Points: 1.00 (partial)
Time limit: 0.5s
Memory limit: 512M
Input: drawatree.inp
Output: drawatree.out
Author:
skyvn97
Problem source:
PVHOI 5
Problem type
Allowed languages
C, C++, Go, Java, Kotlin, Pascal, PyPy, Python, Rust, Scratch

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Input

Output

Sample Input 1

4
YNY
YY
N

Sample Output 1

3

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  • 2
    ithero  commented on Dec. 23, 2024, 2:57 p.m.

    đếm số cách chọn ra n - 1 cặp điểm để nối n - 1 cạnh 💀