diff --git a/src/main/java/review/leetcode1004.java b/src/main/java/review/leetcode1004.java
new file mode 100644
index 0000000..bf461d8
--- /dev/null
+++ b/src/main/java/review/leetcode1004.java
@@ -0,0 +1,24 @@
+package review;
+
+public class leetcode1004 {
+    public int longestOnes(int[] nums, int k) {
+        int lt = 0;
+        int rt = 0;
+        int max = -1;
+        int zeros = 0;
+        while (rt < nums.length) {
+            if (nums[rt] == 0) {
+                zeros++;
+            }
+            while (zeros > k) {
+                if (nums[lt] == 0) {
+                    zeros--;
+                }
+                lt++;
+            }
+            max = Math.max(max, rt - lt + 1);
+            rt++;
+        }
+        return max;
+    }
+}