void InitDFT(int);
void FreeDFT(int);
void CheckDFT(int,char**);
void DFTSimple(double *A, double *B);
void DFTFaster(double *A, double *B);
void DFTTable(double *A, double *B);
void DFTTukey2(double *A, double *B);
void DFTTukey2Table(double *A, double *B);
void DFTTukey2MultTable(double *A, double *B);
void DFTTukey4(double *A, double *B);
void DFTTukey4Mult(double *A, double *B);
void ClearCounters(void);
void PrintCounters(char*);