diff --git a/lab3/zad3/plots/comp.pdf b/lab3/zad3/plots/comp.pdf
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diff --git a/lab3/zad3/plots/comp_n.pdf b/lab3/zad3/plots/comp_n.pdf
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diff --git a/lab3/zad3/plots/swap.pdf b/lab3/zad3/plots/swap.pdf
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diff --git a/lab3/zad3/plots/swap_n.pdf b/lab3/zad3/plots/swap_n.pdf
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diff --git a/lab3/zad3/plots/time.pdf b/lab3/zad3/plots/time.pdf
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diff --git a/lab3/zad3/plots/time_n.pdf b/lab3/zad3/plots/time_n.pdf
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diff --git a/libselect/src/normal_select.rs b/libselect/src/normal_select.rs
index 3389cfd..428ffe3 100644
--- a/libselect/src/normal_select.rs
+++ b/libselect/src/normal_select.rs
@@ -28,7 +28,7 @@ impl NormalSelect {
     pub fn partition(&mut self, list: &mut Vec<u64>, lo: usize, hi: usize, pivot: u64) -> usize {
         use CompareResult::*;
 
-        let mut pivot_index = 0;
+        let mut pivot_index = lo;
 
         for i in lo..=hi {
             if self.compare(pivot, list[i]) == EQUAL {
@@ -73,12 +73,12 @@ impl NormalSelect {
         if self.should_print { println!("list: {:?}; lo: {lo}; hi: {hi}; ord_stat: {ord_stat}; k: {k}", list); }
 
         let n = hi - lo + 1;
-        let num_groups = if n % 5 == 0 { n / 5 } else { (n / 5) + 1 };
+        let num_groups = if n % k == 0 { n / k } else { (n / k) + 1 };
         let mut medians: Vec<u64> = vec![0; num_groups];
         let mut index = 0;
-        for i in (lo..=hi).step_by(5) {
-            if i + 4 <= hi {
-                self.insertion_sort(list, i, i + 4);
+        for i in (lo..=hi).step_by(k) {
+            if i + (k - 1) <= hi {
+                self.insertion_sort(list, i, i + (k - 1));
                 medians[index] = list[i + 2];
                 index += 1;
             } else {
@@ -94,18 +94,18 @@ impl NormalSelect {
             println!("pivot_index: {pivot_index}; pivot: {pivot}");
         }
         let r = self.partition(list, lo, hi, pivot);
-        let k = r - lo + 1;
+        let i = r - lo + 1;
         if self.should_print {
             println!("r: {r}");
-            println!("k: {k}");
+            println!("i: {i}");
         }
 
-        if k == ord_stat {
+        if i == ord_stat {
             if self.should_print { println!("k == ord_stat"); }
             return (r, list[r]);
-        } else if k < ord_stat {
+        } else if i < ord_stat {
             if self.should_print { println!("k < ord_stat"); }
-            return self._select(list, r + 1, hi, ord_stat - k, k);
+            return self._select(list, r + 1, hi, ord_stat - i, k);
         } else {
             if self.should_print { println!("k > ord_stat"); }
             return self._select(list, lo, r - 1, ord_stat, k);