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boy, girl = (20 + 1, 10 + 1) map = [[0 for f in range(girl)] for m in range(boy)] map[0][0] = 1 for f in range(girl): for m in range(boy): left = 0 bottom = 0 if m > 0: left = map[m - 1][f] if f > 0: bottom = map[m][f - 1] # å é ã°ã«ã¼ããé£ãåãã±ã¼ã¹ã¯ã«ã¦ã³ãããªã # ãããã¯ãå¾åã°ã«ã¼ããé£ãåãã±ã¼ã¹ã§ãã«ã¦ã³ãããªã if m == f or (boy - m == girl - f): left = 0 bottom = 0 map[m][f] = map[m][f] + left + bottom # ã©ããããããã«ãªã£ã¦ããã®ãã®ç¢ºèªç¨ #for line in map: # print([format(v, "6d") for v in line]) print(map[19][10])
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