推荐一款不错的数据生成器：CYaRon，一个基于Python的测试数据生成库。能够生成一部分信息竞赛中需要的数据，操作简单，易入门。

项目地址

部署及基本语法

详见 luogu 官方文档。

常用模板

  1. 数据生成

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    from cyaron import *

    _n = ati([1, 7, 50, 1E4])
    _m = ati([1, 11, 100, 1E4])

    for i in range(1, 4):
        io = IO(file_prefix = "name", data_id = i)

        n = _n[i]
        m = _m[i]
        s = randint(1, n)
        t = randint(1, n)
        graph = Graph.graph(n, m, weight_limit = 5)

        io.input_writeln(n, m, s, t)
        io.input_writeln(graph)	
        io.output_gen("std")

  2. 对拍

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    from cyaron import *

    for i in range(1000):
        print("Case:{0}".format(i))
        iostd = IO("name.in", "name.stdout")
        iotest = IO("name.in", "name.testout")

        n = randint(1, 3)
        m = randint(n - 1, 5)
        s = randint(1, n)
        t = randint(1, n)
        graph = Graph.UDAG(n, m, weight_limit = 10)

        iostd.input_writeln(n, m, s, t)
        iostd.input_writeln(graph.to_str(shuffle = True))

        iostd.output_gen("./std")
        iotest.output_gen("./test")
        Compare.output("name.testout", std = "name.stdout")