add 2022 day1 (p1 and 2) and 2024 day1 (p1 and 2)

2022/day1p2/src/main.rs

@@ -0,0 +1,45 @@
+use std::io::{stdin, Read};
+use libc::{clock_gettime, timespec, CLOCK_PROCESS_CPUTIME_ID};
+
+fn main() {
+
+    let mut data = String::new();
+    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);
+    };
+
+    let calories = data.replace('\n', " ");
+    let lines = calories.split("  ");
+    let mut all_cals = vec![];
+    for line in lines {
+        let mut cal_count = vec![];
+        let nums = line.split_whitespace();
+        for num in nums {
+            let num: i32 = num.trim().parse().unwrap();
+            cal_count.push(num);
+        }
+        let total_sum: i32 = cal_count.iter().sum();
+        all_cals.push(total_sum);
+    }
+    all_cals.sort_unstable();
+    all_cals.reverse();
+    let sum = all_cals[0] + all_cals[1] + all_cals[2];
+
+    let mut end = timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    };
+    unsafe {
+        clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &mut end);
+    };
+    println!("{sum:?}");
+    println!(
+        "time: {:.6}ms",
+        (end.tv_nsec - begin.tv_nsec) as f32 / 1000.0 / 1000.0
+    );
+}