'commit'

TangDou/LuoGuBook/P1090.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+int n, x, ans;
+priority_queue<int, vector<int>, greater<int> > q;//从大到小
+
+int main() {
+    cin >> n;
+    for (int i = 1; i <= n; i++) cin >> x, q.push(x);
+    while (q.size() >= 2) {
+        int a = q.top();
+        q.pop();
+        int b = q.top();
+        q.pop();
+        ans += a + b;
+        q.push(a + b);
+    }
+    cout << ans << endl;
+    return 0;
+}