add day 1 and 2

2023/day1p2/src/main.rs

@@ -0,0 +1,70 @@
+use std::io::{self, Read};
+use libc::{clock_gettime, timespec, CLOCK_PROCESS_CPUTIME_ID};
+
+fn main() {
+    let mut sum = 0;
+    let mut data = String::new();
+    io::stdin().read_to_string(&mut data).unwrap();
+    let mut begin = timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    };
+    unsafe {
+        clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &mut begin);
+    };
+    for line in data.lines() {
+        let mut vec = Vec::new();
+        let replacements = [
+            ("1", 1),
+            ("2", 2),
+            ("3", 3),
+            ("4", 4),
+            ("5", 5),
+            ("6", 6),
+            ("7", 7),
+            ("8", 8),
+            ("9", 9),
+            ("one", 1),
+            ("two", 2),
+            ("three", 3),
+            ("four", 4),
+            ("five", 5),
+            ("six", 6),
+            ("seven", 7),
+            ("eight", 8),
+            ("nine", 9),
+        ];
+
+        let serror = line.to_string();
+
+        for i in 0..serror.len() {
+            for &(word, num) in &replacements {
+                let mut end = i + word.len();
+                if end > serror.len() {
+                    end = serror.len();
+                }
+                let fisht = &serror[i..end];
+                if fisht == word {
+                    vec.push(num);
+                }
+            }
+        }
+
+        let mut sussy = vec.first().unwrap().to_owned();
+        sussy = sussy * 10 + vec.last().unwrap().to_owned();
+        sum += sussy;
+    }
+
+    println!("{sum:?}");
+    let mut end = timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    };
+    unsafe {
+        clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &mut end);
+    };
+    println!(
+        "time: {:.6}ms",
+        (end.tv_nsec - begin.tv_nsec) as f32 / 1000.0 / 1000.0
+    );
+}