update 392

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/firstthousand/_392.java

@@ -4,22 +4,13 @@ public class _392 {
 
     public static class Solution1 {
         public boolean isSubsequence(String s, String t) {
-            int left = 0;
-            for (int i = 0; i < s.length(); i++) {
-                boolean foundI = false;
-                int j = left;
-                for (; j < t.length(); j++) {
-                    if (s.charAt(i) == t.charAt(j)) {
-                        left = j + 1;
-                        foundI = true;
-                        break;
-                    }
-                }
-                if (j == t.length() && !foundI) {
-                    return false;
+            int i = 0;
+            for (int j = 0; i < s.length() && j < t.length(); j++) {
+                if (s.charAt(i) == t.charAt(j)) {
+                    i++;
                 }
             }
-            return true;
+            return i == s.length();
         }
     }
 }