0_0_21488994_14499.cpp: In function 'int main()': 0_0_21488994_14499.cpp:113:21: error: cannot convert 'long long int (*)[20]' to 'int (*)[20]' for argument '1' to 'void UFWT(int (*)[20], int, int)' UFWT(numc,1<<m,m); ^