题解 | #[NOIP2013]记数问题#
[NOIP2013]记数问题
https://www.nowcoder.com/practice/28b2d9f2bf2c48de94a1297ed90e1732
n,x = input().split()
n = int(n)
count = 0
for i in range(1,n+1):
i = str(i)
for j in i:
if j == x:
count += 1
print(count)
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