Create Solution.js

solution/0700-0799/0731.My Calendar II/Solution.js

@@ -0,0 +1,33 @@
+
+var MyCalendarTwo = function() {
+    this.events = [];
+    this.overlaps = [];
+};
+
+/** 
+ * @param {number} start 
+ * @param {number} end
+ * @return {boolean}
+ */
+MyCalendarTwo.prototype.book = function(start, end) {
+    for (let [s, e] of this.overlaps) {
+        if (Math.max(start, s) < Math.min(end, e)) {
+            return false;
+        }
+    }
+
+    for (let [s, e] of this.events) {
+        if (Math.max(start, s) < Math.min(end, e)) {
+            this.overlaps.push([Math.max(start, s), Math.min(end, e)]);
+        }
+    }
+
+    this.events.push([start, end]);
+    return true;
+};
+
+/** 
+ * Your MyCalendarTwo object will be instantiated and called as such:
+ * var obj = new MyCalendarTwo()
+ * var param_1 = obj.book(start,end)
+ */