Merge pull request gzc426#173 from MMzhe/patch-6

gzc426 · web-flow · commit 373999bcf0de · 2018-12-01T10:32:02.000+08:00
Create sourcema.md
diff --git a/2018.12.1-leetcode387/sourcema.md b/2018.12.1-leetcode387/sourcema.md
@@ -0,0 +1,18 @@
+# LeetCode 387
+    class Solution {
+    public int firstUniqChar(String s) {
+        if (s.length() == 0 || s == null) {
+            return -1;
+        }
+        int[] arr = new int[26];
+        for (int i = 0; i < s.length(); i++) {
+            arr[s.charAt(i) - 'a']++;
+        }
+        for (int i = 0; i < s.length(); i++) {
+            if (arr[s.charAt(i)-'a']==1) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
