complete 2022.rs 1264.rs 1318.rs 3731.rs 4633.rs 7140.rs 7541.rs 14315.rs 17204.rs 25208.rs

storage/zeta/rs/completed/7541.rs

@@ -0,0 +1,54 @@
+use std::{io::stdin, u8};
+
+fn main() {
+    let mut line = String::new();
+    stdin().read_line(&mut line).unwrap();
+    let n = line.trim().parse::<usize>().unwrap();
+
+    (1..=n).for_each(|case| {
+        line.clear();
+        stdin().read_line(&mut line).unwrap();
+
+        let mut id = line
+            .trim()
+            .chars()
+            .map(|x| match x {
+                '?' => u8::MAX,
+                _ => x as u8 - '0' as u8,
+            })
+            .collect::<Vec<u8>>();
+
+        let mut idx = 0;
+        let mut k: u64 = 0;
+        let len = id.len();
+        let r_s: u64 = id
+            .iter()
+            .enumerate()
+            .map(|(i, &x)| {
+                if x == u8::MAX {
+                    idx = i;
+                    k = [9, 3, 7][(len - i - 1) % 3];
+                    0
+                } else {
+                    let t = x as u64 * [9, 3, 7][(len - i - 1) % 3] as u64;
+                    t
+                }
+            })
+            .sum();
+        let mut x = 0;
+        for i in 0..10 {
+            if (i * k + r_s) % 10 == 0 {
+                x = i;
+                break;
+            }
+        }
+        id[idx] = x as u8;
+        println!(
+            "Scenario #{}:\n{}\n",
+            case,
+            id.iter()
+                .map(|&x| ('0' as u8 + x as u8) as char)
+                .collect::<String>()
+        );
+    });
+}