DeaDvey d3 optimisations & danmax

2025/3/danmax/Cargo.toml

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+[package]
+name = "danmax"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

2025/3/danmax/src/main.rs

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+fn main() {
+    let raw = std::fs::read_to_string("../large.txt").unwrap();
+    let start = std::time::Instant::now();
+    let mut banks = raw.split('\n').collect::<Vec<&str>>();
+    banks.pop();
+    let mut sol = 0;
+    for bank in banks {
+        let batteries = bank.chars().map(|x| (x as u8) - 48).collect::<Vec<u8>>();
+        let mut combos = vec![];
+        for i in 0..batteries.len() - 1 {
+            let num = (batteries[i] * 10) + batteries[(i + 1)..batteries.len()].iter().max().unwrap();
+            combos.push(num);
+        }
+        sol += *combos.iter().max().unwrap() as u64;
+    }
+    let end = start.elapsed();
+    dbg!(sol, end);
+}