1 files changed, 18 insertions(+), 1 deletions(-)

M src/days/day01.rs

@@ 11,8 11,25 @@ fn calc_solution1(input: &Vec<i32>) -> i32 {
     panic!("No solution");
 }
 
+fn calc_solution2(input: &Vec<i32>) -> i32 {
+    for i in 0..input.len() {
+        for j in (i + 1)..input.len() {
+            for k in (j + 1)..input.len() {
+                if (input[i] + input[j] + input[k]) == 2020 {
+                    return input[i] * input[j] * input[k];
+                }
+            }
+        }
+    }
+    panic!("No solution");
+}
+
 pub fn get_solution() {
     let contents = fs::read_to_string("data/day01.dat").expect("Could not read data");
     let input: Vec<i32> = contents.lines().flat_map(str::parse).collect();
-    println!("Day 1, part 1: {}", calc_solution1(&input));
+    println!(
+        "Day 1, part 1: {}, part 2: {}",
+        calc_solution1(&input),
+        calc_solution2(&input)
+    );
 }