def find_max_form(strs, m, n):
    dp = [[0] * (n + 1) for _ in range(m + 1)]
    for s in strs:
        z = s.count("0")
        o = len(s) - z
        for i in range(m, z - 1, -1):
            for j in range(n, o - 1, -1):
                dp[i][j] = max(dp[i][j], dp[i - z][j - o] + 1)
    return dp[m][n]


if __name__ == "__main__":
    print(find_max_form(["10", "0001", "111001", "1", "0"], 5, 3))
    print(find_max_form(["10", "0", "1"], 1, 1))