diff --git a/lab2/src/algo/bit_vector.rs b/lab2/src/algo/bit_vector.rs
index 089f2e6..58d2057 100644
--- a/lab2/src/algo/bit_vector.rs
+++ b/lab2/src/algo/bit_vector.rs
@@ -1,7 +1,7 @@
 use std::cmp::min;
 use std::ops::{BitAnd, BitAndAssign, Index, IndexMut, Not, Shl};
 
-pub(super) struct BitVector {
+pub struct BitVector {
     len: usize,
     data: Box<[usize]>,
 }
@@ -27,7 +27,12 @@ impl BitVector {
 
         return counter;
     }
+
+    pub fn len(&self) -> usize {
+        return self.len;
+    }
 }
+
 impl Clone for BitVector {
     fn clone(&self) -> Self {
         return Self {
@@ -37,10 +42,10 @@ impl Clone for BitVector {
     }
 }
 
-impl BitAnd<&Self> for BitVector {
-    type Output = Self;
+impl BitAnd<Self> for &BitVector {
+    type Output = BitVector;
 
-    fn bitand(self, rhs: &Self) -> Self::Output {
+    fn bitand(self, rhs: Self) -> Self::Output {
         let mut intersected = self.clone();
         intersected &= rhs;
         return intersected;
diff --git a/lab2/src/algo/impl.rs b/lab2/src/algo/impl.rs
new file mode 100644
index 0000000..cc506f9
--- /dev/null
+++ b/lab2/src/algo/impl.rs
@@ -0,0 +1,35 @@
+use super::BitVector;
+use super::operations::attentivenessTest;
+use super::operations::similarityCheck;
+
+pub fn adaptiveResonanceTheoryImpl(
+    data: &[BitVector],
+    beta: usize,
+    attentiveness: f64,
+) -> Box<[usize]> {
+    let mut prototypes = Vec::<BitVector>::new();
+    let mut groups = vec![0usize, data.len()].into_boxed_slice();
+
+    match data.get(0) {
+        None => return groups,
+        Some(p) => prototypes.push(p.clone()),
+    }
+    prototypes.push(data[0].clone());
+
+    'elements: for i in 1..data.len() {
+        for j in 0..prototypes.len() {
+            if !similarityCheck(&prototypes[j], &data[i], beta) {
+                continue;
+            }
+            if !attentivenessTest(&prototypes[j], &data[i], attentiveness) {
+                continue;
+            }
+            groups[i] = j;
+            continue 'elements;
+        }
+
+        prototypes.push(data[i].clone());
+    }
+
+    return groups;
+}
diff --git a/lab2/src/algo/mod.rs b/lab2/src/algo/mod.rs
index c7f6a96..fc23934 100644
--- a/lab2/src/algo/mod.rs
+++ b/lab2/src/algo/mod.rs
@@ -1 +1,5 @@
 mod bit_vector;
+mod operations;
+mod r#impl;
+
+pub use bit_vector::BitVector;
\ No newline at end of file
diff --git a/lab2/src/algo/operations.rs b/lab2/src/algo/operations.rs
new file mode 100644
index 0000000..57ad7a6
--- /dev/null
+++ b/lab2/src/algo/operations.rs
@@ -0,0 +1,10 @@
+use super::BitVector;
+use eframe::emath::Numeric;
+
+pub(super) fn similarityCheck(prototype: &BitVector, vector: &BitVector, beta: usize) -> bool {
+    return ((prototype & vector).count1() / (beta + prototype.count1()))
+        > (vector.count1() / (beta + vector.len()));
+}
+pub(super) fn attentivenessTest(prototype: &BitVector, vector: &BitVector, p: f64) -> bool {
+    return ((prototype & vector).count1() / (vector.count1())).to_f64() < p;
+}