7^2=49 4^2+9^2=97 9^2+7^2=130 1^2+3^2+0^2=10 1^2+0^2=1
16
17
18
19
def abc(a): b = str(a) new = 0 for num in b: num = int(num) new += num ** 2 return new #测试 c = abc(16) flag = 1 while c != 1 and flag < 20: c =abc(c) flag += 1 print(c,flag)
我发现这种试答案的题就应该从D开始试 一般试答案的都在D C项
这道题你会答吗?花几分钟告诉大家答案吧!
扫描二维码,关注牛客网
下载牛客APP,随时随地刷题