Create 1523-count-odd-numbers-in-an-interval-range.js

Author: everthis

1523-count-odd-numbers-in-an-interval-range.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number} low
+ * @param {number} high
+ * @return {number}
+ */
+const countOdds = function(low, high) {
+  let res = 0
+  
+  const odd = num => num % 2 === 1
+  if(odd(low)) res++
+    
+  const num = Math.floor( (high - low) / 2 )
+  res += num
+  
+  if(high > low + 2 * num && odd(high)) res++
+  
+  return res
+};