2 files changed, 40 insertions, 0 deletions
diff --git a/check-if-a-string-contains-all-binary-codes-of-size-k/Cargo.toml b/check-if-a-string-contains-all-binary-codes-of-size-k/Cargo.toml
new file mode 100644
index 0000000..9086b45
--- /dev/null
+++ b/check-if-a-string-contains-all-binary-codes-of-size-k/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "check-if-a-string-contains-all-binary-codes-of-size-k"
+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/check-if-a-string-contains-all-binary-codes-of-size-k/src/main.rs b/check-if-a-string-contains-all-binary-codes-of-size-k/src/main.rs
new file mode 100644
index 0000000..028b32c
--- /dev/null
+++ b/check-if-a-string-contains-all-binary-codes-of-size-k/src/main.rs
@@ -0,0 +1,32 @@
+fn main() {
+    println!("Hello, world!");
+    let tests = [
+        ("00110110", 2, true),
+        ("0110", 1, true),
+        ("0110", 2, false),
+        ("00000000001011100", 3, true),
+        ("000011010111011001001111111001000100100100010100101100001101101101110001100100101111100111001001111001001010111010010101101001001110011100110101001001001000000110101001010011101100110110100010000", 7, false)
+    ];
+    for (s, k, o) in tests {
+        let result = Solution::has_all_codes(s.to_string(),k);
+        println!("{s:?} with {k} is {result} should be {o}");
+    }
+}
+
+struct Solution;
+
+impl Solution {
+    pub fn has_all_codes(s: String, k: i32) -> bool {
+        // (00..=2_i32.pow(k as u32) -1).all(|x| s.contains(&format!("{x:00$b}", k as usize)))j
+        let mut m: u128 = 0;
+        let mut m = (0..)
+        for w in s.chars().collect::<Vec<_>>().windows(k as usize) {
+            m |= 1 << i32::from_str_radix(&w.iter().collect::<String>(), 2).unwrap();
+            // println!("{m:b}");
+        }
+        // println!("{m:b}");
+        let h = 2_u128.pow(2_u32.pow(k as u32)) -1;
+        // println!("{h} {h:b}");
+        m == h
+    }
+}