Create 1189-maximum-number-of-balloons.js

Author: everthis

1189-maximum-number-of-balloons.js

@@ -0,0 +1,12 @@
+/**
+ * @param {string} text
+ * @return {number}
+ */
+const maxNumberOfBalloons = function(text) {
+  const cnt = [...text].reduce((A, ch) => {
+    A[ch] = (A[ch] || 0) + 1;
+    return A;
+  }, {});
+  const ans = Math.min(cnt['b'], cnt['a'], cnt['l'] / 2, cnt['o'] / 2, cnt['n']);
+  return ans ? Math.floor(ans) : 0;
+};