20 lines
423 B
Rust
20 lines
423 B
Rust
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pub fn is_legitimate(pool: &[Vec<u8>]) -> Option<bool> {
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for row in pool {
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if *row.first()? == 1 || *row.last()? == 1 {
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return Some(false);
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}
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}
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for first_row in pool.first()? {
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if *first_row == 1 {
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return Some(false);
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}
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}
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for last_row in pool.last()? {
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if *last_row == 1 {
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return Some(false);
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}
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}
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Some(true)
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}
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