From 4dfc11d74ab02ac5765ae5d08fb750c91f4744b4 Mon Sep 17 00:00:00 2001 From: Hunter Kvalevog Date: Fri, 2 Oct 2026 21:53:51 -0500 Subject: rustlings: move to rust/ --- rustlings/solutions/11_hashmaps/hashmaps3.rs | 85 ---------------------------- 1 file changed, 85 deletions(-) delete mode 100644 rustlings/solutions/11_hashmaps/hashmaps3.rs (limited to 'rustlings/solutions/11_hashmaps/hashmaps3.rs') diff --git a/rustlings/solutions/11_hashmaps/hashmaps3.rs b/rustlings/solutions/11_hashmaps/hashmaps3.rs deleted file mode 100644 index 485bf83..0000000 --- a/rustlings/solutions/11_hashmaps/hashmaps3.rs +++ /dev/null @@ -1,85 +0,0 @@ -// A list of scores (one per line) of a soccer match is given. Each line is of -// the form ",,," -// Example: "England,France,4,2" (England scored 4 goals, France 2). -// -// You have to build a scores table containing the name of the team, the total -// number of goals the team scored, and the total number of goals the team -// conceded. - -use std::collections::HashMap; - -// A structure to store the goal details of a team. -#[derive(Default)] -struct TeamScores { - goals_scored: u8, - goals_conceded: u8, -} - -fn build_scores_table(results: &str) -> HashMap<&str, TeamScores> { - // The name of the team is the key and its associated struct is the value. - let mut scores = HashMap::<&str, TeamScores>::new(); - - for line in results.lines() { - let mut split_iterator = line.split(','); - // NOTE: We use `unwrap` because we didn't deal with error handling yet. - let team_1_name = split_iterator.next().unwrap(); - let team_2_name = split_iterator.next().unwrap(); - let team_1_score: u8 = split_iterator.next().unwrap().parse().unwrap(); - let team_2_score: u8 = split_iterator.next().unwrap().parse().unwrap(); - - // Insert the default with zeros if a team doesn't exist yet. - let team_1 = scores.entry(team_1_name).or_default(); - // Update the values. - team_1.goals_scored += team_1_score; - team_1.goals_conceded += team_2_score; - - // Similarly for the second team. - let team_2 = scores.entry(team_2_name).or_default(); - team_2.goals_scored += team_2_score; - team_2.goals_conceded += team_1_score; - } - - scores -} - -fn main() { - // You can optionally experiment here. -} - -#[cfg(test)] -mod tests { - use super::*; - - const RESULTS: &str = "England,France,4,2 -France,Italy,3,1 -Poland,Spain,2,0 -Germany,England,2,1 -England,Spain,1,0"; - - #[test] - fn build_scores() { - let scores = build_scores_table(RESULTS); - - assert!( - ["England", "France", "Germany", "Italy", "Poland", "Spain"] - .into_iter() - .all(|team_name| scores.contains_key(team_name)) - ); - } - - #[test] - fn validate_team_score_1() { - let scores = build_scores_table(RESULTS); - let team = scores.get("England").unwrap(); - assert_eq!(team.goals_scored, 6); - assert_eq!(team.goals_conceded, 4); - } - - #[test] - fn validate_team_score_2() { - let scores = build_scores_table(RESULTS); - let team = scores.get("Spain").unwrap(); - assert_eq!(team.goals_scored, 0); - assert_eq!(team.goals_conceded, 3); - } -} -- cgit v1.2.3