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20 lines
426 B
C++
20 lines
426 B
C++
#define _CRT_SECURE_NO_WARNINGS
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#define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING
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#include <bits/stdc++.h>
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using namespace std;
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int main()
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{
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int n, x, cnt = 0;
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cin >> n >> x, x += '0';
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char buf[40];
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for (int i = 1; i <= n; i++)
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{
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sprintf(buf, "%d", i);
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for (char *p = buf; *p; p++)
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if (*p == x)
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cnt++;
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}
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cout << cnt;
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return 0;
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}
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