Python题解 | #自守数#
自守数
https://www.nowcoder.com/practice/88ddd31618f04514ae3a689e83f3ab8e
import sys
while True:
try:
n = int(input())
ans = 1
for i in range(1, n + 1):
if i % 10 == 1 or i % 10 == 5 or i % 10 == 6:
a = str(i)
b = str(i * i)
if b[-len(a):] == a:
ans += 1
print(ans)
except:
break
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