snowball

int n = int.Parse(Console.ReadLine()!);

double biggestSBV = 0;

for (int i = 0; i < n; i++)
{
    int snowballSnow = int.Parse(Console.ReadLine()!);
    int snowballTime = int.Parse(Console.ReadLine()!);
    int snowballQuality = int.Parse(Console.ReadLine()!);

    double snowballValue = Math.Pow((snowballSnow / snowballTime), snowballQuality);

    if (snowballValue > biggestSBV)
    {
        biggestSBV = snowballValue;
    }
}

Console.WriteLine($"{biggestSBV:F2}");