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#include <bits/stdc++.h>
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using namespace std;
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const int N = 100010;
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typedef long long LL;
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int a[N];
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LL res;
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int main() {
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int n;
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cin >> n;
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for (int i = 0; i < n; i++) cin >> a[i];
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sort(a, a + n);
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for (int i = 0; i < n; i++) res += a[i] * (n - i - 1);
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printf("%lld", res);
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return 0;
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} |
