Create 2062-count-vowel-substrings-of-a-string.js

Author: everthis

2062-count-vowel-substrings-of-a-string.js

@@ -0,0 +1,27 @@
+/**
+ * @param {string} word
+ * @return {number}
+ */
+const countVowelSubstrings = function(word) {
+  let res = 0, n= word.length
+  for(let i = 0; i < n - 1;i++) {
+    for(let j = i + 1;j < n; j++) {
+      if(valid(word, i, j)) res++
+    }
+  }
+  
+  return res
+  
+  function valid(s, i, j) {
+    const set = new Set(['a', 'e', 'i', 'o','u'])
+    const vis = new Set()
+    for(let idx = i; idx <= j; idx++) {
+      if(!set.has(s[idx])) return false
+      else {
+        vis.add(s[idx])
+      }
+    }
+    // console.log(vis)
+    return vis.size === 5
+  }
+};