Worst-case simplex method example generator

gistfile1.py

if __name__ == '__main__':

    d = 18
    c = [str(10**(d-i)) for i in range(1, d+1)]
    a = []
    b = []
    for row in range(d):
        a.append(['0'] * d)
        for j in range(0, row):
            a[-1][j] = str(2 * 10 ** (row - j))
        a[-1][row] = '1'
        b.append(str(10 ** (row)))
    f = open("C:\\temp\\input.txt", 'w')
    f.write(str(d))
    f.write("\n")
    f.write(' '.join(c))
    f.write("\n")
    f.write(str(d))
    f.write("\n")
    for line in a:
        f.write(' '.join(line))
        f.write("\n")
    f.write(' '.join(b))
    f.write("\n")
    f.close()