题解 | 挑7
while True:
try:
n = int(input())
count = 0
for i in range(7,n+1):
if i % 7 == 0 or '7' in str(i):
count += 1
print(count)
except:
break
while True:
try:
n = int(input())
count = 0
for i in range(7,n+1):
if i % 7 == 0 or '7' in str(i):
count += 1
print(count)
except:
break
相关推荐