27 lines
578 B
C++
27 lines
578 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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const int N = 3010;
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int a[N], b[N], f[N], n;
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int main() {
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cin >> n;
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for (int i = 1; i <= n; i++) cin >> a[i];
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for (int i = 1; i <= n; i++) cin >> b[i];
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for (int i = 1; i <= n; i++) {
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int maxv = 1;
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for (int j = 1; j <= n; j++) {
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if (a[i] == b[j]) f[j] = max(maxv, f[j]);
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if (a[i] > b[j]) maxv = max(f[j] + 1, maxv);
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}
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}
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int res = 0;
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for (int i = 1; i <= n; i++) res = max(res, f[i]);
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cout << res << endl;
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return 0;
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}
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