needle = require("./needle")

function multiple_path_backtrack_trace(matrix, seq1, seq2)
    local stack = {}
    local m=string.len(seq1)
    local n=string.len(seq2)
    local i=m
    local j=n
    table.insert(1, {i, j, nil})
    while #stack ~= 0 do
        local state = table.remove(stack, 1)
        local i=state[1]
        local j=state[2]
        local alignment = state[3]
    end
end

function main()
    local seq1 = "ATCTGAT"
    local seq2 = "TGCATA"
    local matrix = needle.needle_matrix(seq1, seq2)
end