Mbpp/583

✅ 完美通过 Base: PASS Plus: PASS
测试评估
指标结果
Base 测试PASS
Plus 测试PASS
代码长度328 字符
模型生成的代码 (328 字符)
import math
def catalan_number(n: int) -> int:
    """
    Returns the nth Catalan number.
    C_0 = 1
    C_n = (2n)! / (n! * (n+1)!) for n >= 0
    """
    if n < 0:
        raise ValueError("n must be non-negative")
    # Compute binomial coefficient (2n choose n) divided by (n + 1)
    return math.comb(2 * n, n) // (n + 1)
Base 失败测试用例
  • 无失败测试
Plus 失败测试用例
  • 无失败测试