'commit'

TangDou/AcWing/Huffman/148.cpp

@@ -0,0 +1,27 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+// 升序队列，小顶堆
+priority_queue<int, vector<int>, greater<int>> q;
+int res;
+
+int main() {
+    int n;
+    cin >> n;
+    while (n--) {
+        int x;
+        cin >> x;
+        q.push(x);
+    }
+    while (q.size() > 1) {
+        int a = q.top();
+        q.pop();
+        int b = q.top();
+        q.pop();
+        res += a + b;
+        q.push(a + b);
+    }
+    cout << res << endl;
+    return 0;
+}