23 lines
620 B
V
23 lines
620 B
V
fn main()
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{
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println(lcs("thisisatest", "testing123testing"))
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}
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fn lcs(a string, b string) string {
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mut lengths := map[int]int{}
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mut output :=''
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mut greatest_length := 0
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for i, x in a {
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for j, y in b {
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if x == y {
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if i == 0 || j == 0 {lengths[i * b.len + j] = 1} else {lengths[i * b.len + j] = lengths[(i-1) * b.len + j-1] + 1}
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if lengths[i * b.len + j] > greatest_length {
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greatest_length = lengths[i * b.len + j]
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output += x.ascii_str()
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}
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}
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}
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}
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return output
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}
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