diff --git a/2020/src/day06.rs b/2020/src/day06.rs
index 19d5b41..06ae2a8 100644
--- a/2020/src/day06.rs
+++ b/2020/src/day06.rs
@@ -10,23 +10,18 @@ fn count(answers: Answers) -> u32 {
 }
 
 fn compute_answers(group: &str) -> Answers {
-    let mut questions = 0;
-
-    for question in group.chars().filter(char::is_ascii_lowercase) {
-        questions |= 1 << (question as usize - 'a' as usize);
-    }
-
-    questions
+    group
+        .chars()
+        .filter(char::is_ascii_lowercase)
+        .map(|q| 1 << (q as usize - 'a' as usize))
+        .fold(0, |a, b| a | b)
 }
 
 fn count_answers_all(group: &str) -> u32 {
-    let mut combined = 0xffff_ffff;
-
-    for line in group.split('\n') {
-        let single = compute_answers(line);
-
-        combined &= single;
-    }
+    let combined = group
+        .split('\n')
+        .map(compute_answers)
+        .fold(0xffff_ffff, |a, b| a & b);
 
     count(combined)
 }
@@ -38,7 +33,7 @@ impl Solution for Day06 {
     fn part1(&mut self, input: &mut dyn Read) -> String {
         let input: String = read_single_input(input);
 
-        let total: u32 = input.split("\n\n").map(compute_answers).map(count).sum();
+        let total: u32 = input.split("\n\n").map(|g| count(compute_answers(g))).sum();
 
         total.to_string()
     }