diff --git a/longest_ones_with_k_flips/Cargo.toml b/longest_ones_with_k_flips/Cargo.toml
new file mode 100644
index 0000000..9aa9d35
--- /dev/null
+++ b/longest_ones_with_k_flips/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "longest_ones_with_k_flips"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/longest_ones_with_k_flips/src/main.rs b/longest_ones_with_k_flips/src/main.rs
new file mode 100644
index 0000000..3e7990b
--- /dev/null
+++ b/longest_ones_with_k_flips/src/main.rs
@@ -0,0 +1,30 @@
+fn main() {
+    //dbg!(l(vec![1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0], 2));
+    dbg!(l(
+        vec![0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1],
+        3
+    ));
+}
+
+fn l(nums: Vec<i32>, k: i32) -> i32 {
+    let len = nums.len() as i32;
+    let mut k = k;
+    let mut start: i32 = -1;
+    let mut end: i32 = -1;
+    let nums = &nums;
+
+    while end < len - 1 {
+        end += 1;
+        if nums[end as usize] == 0 {
+            k -= 1;
+        }
+
+        if k < 0 {
+            start += 1;
+            if nums[start as usize] == 0 {
+                k += 1;
+            }
+        }
+    }
+    end - start
+}