Minimum Domino Rotations For Equal Row
<p>In a row of dominoes, <code>tops[i]</code> and <code>bottoms[i]</code> represent the top and bottom halves of the <code>i<sup>th</sup></code> domino. (A domino is a tile with two numbers from 1 to 6 - one on each half of the tile.)</p>

<p>We may rotate the <code>i<sup>th</sup></code> domino, so that <code>tops[i]</code> and <code>bottoms[i]</code> swap values.</p>

<p>Return the minimum number of rotations so that all the values in <code>tops</code> are the same, or all the values in <code>bottoms</code> are the same.</p>

<p>If it cannot be done, return <code>-1</code>.</p>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/05/14/domino.png" style="height: 300px; width: 421px;" />
<pre>
<strong>Input:</strong> tops = [2,1,2,4,2,2], bottoms = [5,2,6,2,3,2]
<strong>Output:</strong> 2
<strong>Explanation:</strong> 
The first figure represents the dominoes as given by tops and bottoms: before we do any rotations.
If we rotate the second and fourth dominoes, we can make every value in the top row equal to 2, as indicated by the second figure.
</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> tops = [3,5,1,2,3], bottoms = [3,6,3,3,4]
<strong>Output:</strong> -1
<strong>Explanation:</strong> 
In this case, it is not possible to rotate the dominoes to make one row of values equal.
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>2 &lt;= tops.length &lt;= 2 * 10<sup>4</sup></code></li>
	<li><code>bottoms.length == tops.length</code></li>
	<li><code>1 &lt;= tops[i], bottoms[i] &lt;= 6</code></li>
</ul>

[]
[]
[{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n    int minDominoRotations(vector<int>& tops, vector<int>& bottoms) {\n        \n    }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n    public int minDominoRotations(int[] tops, int[] bottoms) {\n        \n    }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n    def minDominoRotations(self, tops, bottoms):\n        \"\"\"\n        :type tops: List[int]\n        :type bottoms: List[int]\n        :rtype: int\n        \"\"\"\n        "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n    def minDominoRotations(self, tops: List[int], bottoms: List[int]) -> int:\n        "}, {"value": "c", "text": "C", "defaultCode": "int minDominoRotations(int* tops, int topsSize, int* bottoms, int bottomsSize) {\n    \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n    public int MinDominoRotations(int[] tops, int[] bottoms) {\n        \n    }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} tops\n * @param {number[]} bottoms\n * @return {number}\n */\nvar minDominoRotations = function(tops, bottoms) {\n    \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function minDominoRotations(tops: number[], bottoms: number[]): number {\n    \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n    /**\n     * @param Integer[] $tops\n     * @param Integer[] $bottoms\n     * @return Integer\n     */\n    function minDominoRotations($tops, $bottoms) {\n        \n    }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n    func minDominoRotations(_ tops: [Int], _ bottoms: [Int]) -> Int {\n        \n    }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n    fun minDominoRotations(tops: IntArray, bottoms: IntArray): Int {\n        \n    }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n  int minDominoRotations(List<int> tops, List<int> bottoms) {\n    \n  }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func minDominoRotations(tops []int, bottoms []int) int {\n    \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} tops\n# @param {Integer[]} bottoms\n# @return {Integer}\ndef min_domino_rotations(tops, bottoms)\n    \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n    def minDominoRotations(tops: Array[Int], bottoms: Array[Int]): Int = {\n        \n    }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n    pub fn min_domino_rotations(tops: Vec<i32>, bottoms: Vec<i32>) -> i32 {\n        \n    }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (min-domino-rotations tops bottoms)\n  (-> (listof exact-integer?) (listof exact-integer?) exact-integer?)\n  )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec min_domino_rotations(Tops :: [integer()], Bottoms :: [integer()]) -> integer().\nmin_domino_rotations(Tops, Bottoms) ->\n  ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n  @spec min_domino_rotations(tops :: [integer], bottoms :: [integer]) :: integer\n  def min_domino_rotations(tops, bottoms) do\n    \n  end\nend"}]
{
  "name": "minDominoRotations",
  "params": [
    {
      "name": "tops",
      "type": "integer[]"
    },
    {
      "name": "bottoms",
      "type": "integer[]"
    }
  ],
  "return": {
    "type": "integer"
  }
}
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['Array', 'Greedy']