Merge pull request #1947 from laitooo/0392-is-subsequence.dart

Create: 0392-Is-Subseqyence.dart

Author: tahsintunan

Diff for: dart/0392-is-subsequence.dart

@@ -0,0 +1,12 @@
+class Solution {
+  bool isSubsequence(String s, String t) {
+      int i = 0, j = 0;
+      while (i < t.length && j != s.length) {
+          if (t[i] == s[j]) {
+              j += 1;
+          }
+          i += 1;
+      }
+      return j == s.length;
+  }
+}