30 lines
669 B
Rust
30 lines
669 B
Rust
fn main() {
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let country_city = [
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("UK", "London"),
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("US", "New York"),
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("US", "Birmingham"),
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("UK", "Birmingham"),
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];
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let mut city_sorted = country_city.clone();
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city_sorted.sort_by_key(|k| k.1);
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let mut country_sorted = country_city.clone();
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country_sorted.sort_by_key(|k| k.0);
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println!("Original:");
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for x in &country_city {
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println!("{} {}", x.0, x.1);
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}
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println!("\nWhen sorted by city:");
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for x in &city_sorted {
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println!("{} {}", x.0, x.1);
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}
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println!("\nWhen sorted by county:");
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for x in &country_sorted {
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println!("{} {}", x.0, x.1);
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}
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}
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