add 1869

fishercoder1534 · fishercoder1534 · commit 946078b342ce · 2021-05-23T07:49:52.000-07:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ &#9733;
 
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag                   
 |-----|----------------|---------------|--------|-------------|-------------
+|1869|[Longer Contiguous Segments of Ones than Zeros](https://leetcode.com/problems/longer-contiguous-segments-of-ones-than-zeros/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1869.java) ||Easy|Array, Two Pointers|
 |1863|[Sum of All Subset XOR Totals](https://leetcode.com/problems/sum-of-all-subset-xor-totals/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1863.java) ||Easy|Backtracking, Recursion|
 |1862|[Sum of Floored Pairs](https://leetcode.com/problems/sum-of-floored-pairs/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1862.java) ||Hard|Math|
 |1861|[Rotating the Box](https://leetcode.com/problems/rotating-the-box/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1861.java) |[:tv:](https://youtu.be/2LRnTMOiqSI)|Medium|Array, Two Pointers|
diff --git a/src/main/java/com/fishercoder/solutions/_1869.java b/src/main/java/com/fishercoder/solutions/_1869.java
@@ -0,0 +1,27 @@
+package com.fishercoder.solutions;
+
+public class _1869 {
+    public static class Solution1 {
+        public boolean checkZeroOnes(String s) {
+            int zeroes = 0;
+            int ones = 0;
+            for (int i = 0; i < s.length(); ) {
+                int start = i;
+                while (i < s.length() && s.charAt(i) == '0') {
+                    i++;
+                }
+                if (i > start) {
+                    zeroes = Math.max(zeroes, i - start);
+                }
+                start = i;
+                while (i < s.length() && s.charAt(i) == '1') {
+                    i++;
+                }
+                if (i > start) {
+                    ones = Math.max(ones, i - start);
+                }
+            }
+            return ones > zeroes;
+        }
+    }
+}
diff --git a/src/test/java/com/fishercoder/_1869Test.java b/src/test/java/com/fishercoder/_1869Test.java
@@ -0,0 +1,27 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._1869;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class _1869Test {
+    private static _1869.Solution1 solution1;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _1869.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(true, solution1.checkZeroOnes("1101"));
+    }
+
+    @Test
+    public void test2() {
+        assertEquals(false, solution1.checkZeroOnes("111000"));
+    }
+
+}
