不会写啊，这个东西对我来说，难度太大了

Question

Answer 1

def f(n):
    convertString = "01"
    if n < 2:
        return convertString[n]
    else:
        return f(n//2) + convertString[n%2]
if __name__ == '__main__':
    d=int(input())
    print(f(d))