{"conversations": [{"from": "user", "value": "d' explorar(start, meta, graella, transited, h=False): start.g = 0 start.cost = start. hg = math.f munt = [] passos = 0 muntaq. heappsh(heap, (costa, start) mentre len(heap > 0: u =amp. ephap[ 0Op] meta=Op=Ool.row, objectiu. g. g. ex.] si s' ha visitat [u]. ex.: continua un cam\u00ed [u]. ex. [u]. ex. [u] = true=[ uol] = 1 (urow). ex., si aquest \u00e9s un objectiu. ex.: 1. ex.: = true=[ e.: xarp.: = True=[ e.: xarp.: xun.: xarpl=[ e.: xun.: xarpn] = True [gn] = [gn]. [gl]. g.: e.: xun"}, {"from": "assistant", "value": "Podries proporcionar m\u00e9s context sobre aquest retall de codi?"}]}