Solutions for Kelvin Climbs

    • @MatthewIdete
    • @alexander, submitted in Python 3, achived 100% score
    def solve(n):
        f1, f2, f3 = 1, 2, 4
        for i in range(n-1):
            f1, f2, f3 = f2, f3, f1 + f2 + f3
        return f1