Create Vowels of All Substrings.java

Author: varunu28

Medium/Vowels of All Substrings.java

@@ -0,0 +1,12 @@
+class Solution {
+  public long countVowels(String word) {
+    long sum = 0;
+    long n = word.length();
+    for (int i = 0; i < n; i++) {
+      if ("aeiou".indexOf(word.charAt(i)) != -1) {
+        sum += (i + 1) * (n - i);
+      }
+    }
+    return sum;
+  }
+}