Advent 2025 Day 1 Part 2, Day 6 Part 1

advent_of_code_2025/src/day6/part2.rs

@@ -0,0 +1,34 @@
+pub fn solve(input: &str) {
+    let lines = input.lines().collect::<Vec<_>>();
+
+    let rows = lines[..(lines.len() - 1)].iter().map(|line| {
+        line.split(" ").filter(|str| !str.is_empty()).map(|num| { num.parse::<u64>().unwrap() }).collect::<Vec<_>>()
+    }).collect::<Vec<_>>();
+
+    let operators = lines.last().unwrap().bytes().filter(|b| *b != b' ').collect::<Vec<_>>();
+    
+    // println!("rows: {rows:?}");
+    // println!("operators: {operators:?}");
+
+    let mut sum_of_operations = 0;
+
+    for (idx, operator) in operators.iter().enumerate() {
+        if *operator == b'*' {
+            let mut result = 1;
+            for row in rows.iter() {
+                result *= row[idx];
+            }
+            // println!("row {idx} (*): {result}");
+            sum_of_operations += result;
+        } else {
+            let mut result = 0;
+            for row in rows.iter() {
+                result += row[idx];
+            }
+            // println!("row {idx} (+): {result}");
+            sum_of_operations += result;
+        }
+    }
+
+    println!("sum of operations: {sum_of_operations}");
+}