Add Javascript solution to Leetcode problem 2017 (https://leetcode.com/problems/grid-game/)

Author: jamesBaxtuh

javascript/2017-grid-game.js

@@ -0,0 +1,23 @@
+/**
+ * Submission Details: 
+ * https://leetcode.com/problems/grid-game/
+ * Time O(n), Space O(1)
+ * Runtime: 89ms (beats 79.31%) || 53.5mb (beats 89.66%)
+ */
+
+/**
+ * @param {number[][]} grid
+ * @return {number}
+ */
+
+var gridGame = function(grid) {
+    let one = grid[0].reduce((a,b)=>a+b) - grid[0][0];
+    let two = 0;
+    let res = one;
+    for(let i = 1; i < grid[0].length; i++){
+        one-=grid[0][i];
+        two+=grid[1][i-1];
+        res = Math.min(res, Math.max(one,two));
+    }
+    return res;
+};