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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_scf_algorithm_and_iterations(self, algorithm="diis", iterations=50):
 """ Set algorithm used for converging SCF and max number of SCF iterations. Args: algorithm: The algorithm used for converging SCF. (str) iterations: The max number of SCF iterations. (Integer) """

        available_algorithms = {"diis", "dm", "diis_dm", "diis_gdm", "gdm",
                                "rca", "rca_diis", "roothaan"}
        if algorithm.lower() not in available_algorithms:
            raise ValueError("Algorithm " + algorithm +
                             " is not available in QChem")
        self.params["rem"]["scf_algorithm"] = algorithm.lower()
        self.params["rem"]["max_scf_cycles"] = iterations