add 1957

fishercoder1534 · fishercoder1534 · commit 8079b88f3719 · 2021-08-10T06:47:48.000-07:00
diff --git a/README.md b/README.md
@@ -9,6 +9,7 @@ _If you like this project, please leave me a star._ &#9733;
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag                  
 |-----|----------------|---------------|--------|-------------|-------------
 |1961|[Check If String Is a Prefix of Array](https://leetcode.com/problems/check-if-string-is-a-prefix-of-array/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1961.java) ||Easy||
+|1957|[Delete Characters to Make Fancy String](https://leetcode.com/problems/delete-characters-to-make-fancy-string/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1957.java) ||Easy|String|
 |1952|[Three Divisors](https://leetcode.com/problems/three-divisors/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1952.java) ||Easy||
 |1945|[Sum of Digits of String After Convert](https://leetcode.com/problems/sum-of-digits-of-string-after-convert/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1945.java) ||Easy||
 |1941|[Check if All Characters Have Equal Number of Occurrences](https://leetcode.com/problems/check-if-all-characters-have-equal-number-of-occurrences/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1941.java) ||Easy||
diff --git a/src/main/java/com/fishercoder/solutions/_1957.java b/src/main/java/com/fishercoder/solutions/_1957.java
@@ -0,0 +1,26 @@
+package com.fishercoder.solutions;
+
+public class _1957 {
+    public static class Solution1 {
+        public String makeFancyString(String s) {
+            StringBuilder sb = new StringBuilder();
+            int freq = 0;
+            for (int i = 0; i < s.length(); i++) {
+                if (i > 0) {
+                    if (s.charAt(i) == s.charAt(i - 1)) {
+                        freq++;
+                    } else {
+                        freq = 1;
+                    }
+                } else {
+                    freq = 1;
+                    sb.append(s.charAt(i));
+                }
+                if (freq <= 2) {
+                    sb.append(s.charAt(i));
+                }
+            }
+            return sb.toString();
+        }
+    }
+}
