18 lines
382 B
C++
18 lines
382 B
C++
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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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int n, x[10000], y[10000];
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cin>>n;
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for(int i=0; i < n; i++)
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cin>>x[i];
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for(int i=0; i < n; i++)
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cin>>y[i];
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sort(x, x + n);
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sort(y, y + n, greater<int>());
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long long sum = 0;
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for(int i=0; i < n; i++)
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sum += (long long)x[i] * y[i];
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cout<<sum<<'\n';
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return 0;
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}
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