Wrote program for Day 32

README.md

@@ -78,7 +78,7 @@ We encourage you to share your progress and ask questions in the Discussions sec
 | Day #29       | [Traffic Light Checker](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-29_Traffic-Light-Checker)                 | :white_check_mark:      |
 | Day #30       | [The Maximum Value](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-30_The-Maximum-Value)                     | :white_check_mark:      |
 | Day #31       | [The Time In Words](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-31_The-Time-In-Words)                     | :white_check_mark:      |
-| Day #32       | [Climbing The Leaderboard](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-32_Climbing-The-Leaderboard)              | :white_large_square:      |
+| Day #32       | [Climbing The Leaderboard](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-32_Climbing-The-Leaderboard)              | :white_check_mark:      |
 | Day #33       | [WERTYU](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-33_WERTYU)                                | :white_large_square:      |
 | Day #34       | [Primary Arithmetic](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-34_Primary-Arithmetic)                    | :white_large_square:      |
 | Day #35       | [Dog And Gopher](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-05/Day-35_Dog-And-Gopher)                        | :white_large_square:      |

Week-05/Day-32_Climbing-The-Leaderboard/day32/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "day32"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

Week-05/Day-32_Climbing-The-Leaderboard/day32/src/lib.rs

@@ -0,0 +1,26 @@
+fn get_player_pos(leaderboard: &[usize], score: &usize) -> usize {
+    let mut position = 1;
+    for (i, lb_score) in leaderboard[1..].iter().enumerate() {
+        if score > &leaderboard[i] {
+            return position;
+        }
+        if &leaderboard[i] > lb_score {
+            position += 1;
+        }
+        if score == lb_score {
+            return position;
+        }
+    }
+    position + 1
+}
+
+pub fn climb_leaderboard(ranked_scores: &[usize], player_scores: &[usize]) -> Vec<usize> {
+    let mut result = Vec::new();
+
+    for score in player_scores.iter() {
+        let pos = get_player_pos(ranked_scores, score);
+        result.push(pos);
+    }
+
+    result
+}

Week-05/Day-32_Climbing-The-Leaderboard/day32/src/main.rs

@@ -0,0 +1,54 @@
+use std::{
+    io::{self, Write},
+    process::exit,
+};
+
+use day32::climb_leaderboard;
+
+fn read_usize_vector(request: &str) -> Result<Vec<usize>, String> {
+    let mut buffer = String::new();
+
+    print!("{}", request);
+    io::stdout().flush().expect("Failed to flush");
+
+    io::stdin()
+        .read_line(&mut buffer)
+        .expect("Failed to read line");
+
+    buffer
+        .split_whitespace()
+        .map(|x| {
+            x.parse()
+                .map_err(|_| "Text must be made of numbers separated by spaces".to_string())
+        })
+        .collect::<Result<Vec<_>, _>>()
+}
+
+fn main() {
+    let ranked_scores =
+        match read_usize_vector("Insert the leaderboard (space separated positive integers): ") {
+            Ok(x) => x,
+            Err(e) => {
+                eprintln!("{}", e);
+                exit(1);
+            }
+        };
+
+    if ranked_scores.windows(2).any(|x| x[0] < x[1]) {
+        eprintln!("The leaderboard must be sorted in descending order");
+        exit(1);
+    }
+
+    let player_scores =
+        match read_usize_vector("Insert the player's scores (space separated positive integers): ")
+        {
+            Ok(x) => x,
+            Err(e) => {
+                eprintln!("{}", e);
+                exit(1);
+            }
+        };
+
+    let result = climb_leaderboard(&ranked_scores, &player_scores);
+    println!("Result: {:?}", result);
+}

Week-05/Day-32_Climbing-The-Leaderboard/day32/tests/examples.rs

@@ -0,0 +1,20 @@
+#[cfg(test)]
+mod examples {
+    use day32::climb_leaderboard;
+
+    #[test]
+    fn example1() {
+        assert_eq!(
+            climb_leaderboard(&[100, 90, 90, 80], &[70, 80, 105]),
+            [4, 3, 1]
+        )
+    }
+
+    #[test]
+    fn example2() {
+        assert_eq!(
+            climb_leaderboard(&[100, 90, 90, 80], &[106, 107, 105]),
+            [1, 1, 1]
+        )
+    }
+}