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    "https://leetcode.com/problems/fibonacci-number\n",
    "\n",
    "\n",
    "\n",
    "Runtime: 4 ms, faster than 36.65% of C++ online submissions for Fibonacci Number.\n",
    "Memory Usage: 5.8 MB, less than 94.10% of C++ online submissions for Fibonacci Number.\n",
    "\n",
    "\n",
    "\n",
    "```cpp\n",
    "#include <vector>\n",
    "#include <algorithm>\n",
    "#include <iostream>\n",
    "\n",
    "using namespace std;\n",
    "\n",
    "class Solution {\n",
    "public:\n",
    "    int fib(int n) {\n",
    "        //4:41\n",
    "        if (n == 0) {return 0;}\n",
    "        vector<int> arr = {0,1};\n",
    "        int i = 2;\n",
    "        while (i<n) {\n",
    "            int newValue = arr[arr.size()-2] + arr[arr.size()-1];\n",
    "            arr.push_back(newValue);\n",
    "            i += 1;\n",
    "        }\n",
    "        return arr[arr.size()-2] + arr[arr.size()-1];\n",
    "        //4:47\n",
    "    }\n",
    "};\n",
    "```"
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