initial commit

03-binary-diagnostic/src/main.rs

@@ -0,0 +1,62 @@
+#![allow(dead_code, unused_imports)]
+use std::fmt::Binary;
+use std::fs::File;
+use std::path::Path;
+use std::io::{self, BufRead};
+
+fn main() {
+  let mut data: Vec<Vec<u32>> = Vec::new();
+  if let Ok(lines) = read_lines("diagnostics.txt") {
+    let mut vecinit = false;
+    for line in lines {
+      if let Ok(l) = line {
+        if !vecinit {
+          for _ in l.chars() {
+            data.push(Vec::new());
+          }
+          vecinit = true;
+        }
+        //println!("{}", l);
+        let mut i = 0;
+        for c in l.chars() {
+          data[i].push(c as u32 - 48);
+          i += 1;
+        }
+      }
+    }
+  }
+  let mut gama = Vec::new();
+  for line in &data {
+    gama.push(
+      if line.iter().sum::<u32>() < data[0].len() as u32 / 2 {
+        0
+      } else {
+        1
+      }
+    );
+  }
+  let lifesupport = if data[0].iter().sum::<u32>() < data[0].len() as u32 / 2 {
+    0
+  } else {
+    1
+  };
+  let co2scrub = if data[0].iter().sum::<u32>() > data[0].len() as u32 / 2 {
+    0
+  } else {
+    1
+  };
+  println!("{}:{}", lifesupport,co2scrub);
+  let mut gamarate = 0;
+  let mut epsilonrate = 0;
+  for i in 0..gama.len() {
+    gamarate += (2_u32.pow(i.try_into().unwrap())) * gama[gama.len() - i - 1];
+    epsilonrate += (2_u32.pow(i.try_into().unwrap())) * if gama[gama.len() - i - 1] == 1 { 0 } else { 1 };
+  }
+  println!("power consumption: {}", gamarate * epsilonrate);
+}
+
+fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
+  where P: AsRef<Path> {
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}