Create 3021-alice-and-bob-playing-flower-game.js

Author: everthis

3021-alice-and-bob-playing-flower-game.js

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+/**
+ * @param {number} n
+ * @param {number} m
+ * @return {number}
+ */
+var flowerGame = function(n, m) {
+  let res = 0
+  let oddNum = 0, evenNum = 0
+  let oddNum1 = 0, evenNum1 = 0
+  for(let i = 1; i <= n; i++) {
+    if(i % 2 === 1) oddNum++
+    else evenNum++
+  }
+  for(let i = 1; i <= m; i++) {
+    if(i % 2 === 1) oddNum1++
+    else evenNum1++
+  }
+  res += oddNum * evenNum1
+  res += evenNum * oddNum1
+  
+  return res
+};