9 lines
271 B
Text
9 lines
271 B
Text
fn main() {
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let squares: Vec<_> = (1..10).map(|n| n*n).collect();
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let is_square = |num| squares.binary_search(&num).is_ok();
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for i in 1..100 {
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let state = if is_square(i) {"open"} else {"closed"};
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println!("Door {} is {}", i, state);
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}
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}
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