[{"language":"C++","code":"class Solution {\n   unordered_map<int, int> price;\n   int n, discount, cnt = 0;\npublic:\n   Solution(int n, int discount, vector<int>& products, vector<int>& prices) {\n      this->n = n;\n      this->discount = discount;\n      for (int i = 0; i < products.size(); ++i)\n        price[products[i]] = prices[i];\n   }\n   double getBill(vector<int>& product, vector<int>& amount) {\n      ++cnt;\n      double ans = 0;\n      for (int i = 0; i < product.size(); ++i)\n        ans += price[product[i]] * amount[i];\n      if (cnt % n == 0)\n        ans = ans * (100 - discount) / 100.0;\n      return ans;\n   }\n};","lang":"cpp","html":"<pre class=\"shiki shiki-themes github-light github-dark\" style=\"background-color:#fff;--shiki-dark-bg:#24292e;color:#24292e;--shiki-dark:#e1e4e8\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">class</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\"> Solution</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> {</span></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">   unordered_map</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">&#x3C;int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">, </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int></span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> price;</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">   int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> n, discount, cnt </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> 0</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">;</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">public:</span></span>\n<span class=\"line\"><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">   Solution</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#E36209;--shiki-dark:#FFAB70\"> n</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">, </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#E36209;--shiki-dark:#FFAB70\"> discount</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">, </span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">vector</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">&#x3C;</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">></span><span style=\"color:#D73A49;--shiki-dark:#F97583\">&#x26;</span><span style=\"color:#E36209;--shiki-dark:#FFAB70\"> products</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">, </span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">vector</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">&#x3C;</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">></span><span style=\"color:#D73A49;--shiki-dark:#F97583\">&#x26;</span><span style=\"color:#E36209;--shiki-dark:#FFAB70\"> prices</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">) {</span></span>\n<span class=\"line\"><span style=\"color:#005CC5;--shiki-dark:#79B8FF\">      this</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">->n </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#24292E;--shiki-dar
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