660. 零食

https://www.acwing.com/problem/content/submission/code_detail/6829169/

AcWing/660/660.cpp

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+#include <bits/stdc++.h>
+
+using namespace std;
+
+double price[] = {0.00, 4.00, 4.50, 5.00, 2.00, 1.50};
+
+int main() {
+    int x, y;
+    cin >> x >> y;
+    cout << "Total: R$ " << fixed << setprecision(2) << price[x] * y << endl;
+    return 0;
+}