Eroare de compilare: user.cpp: In function ‘void Matrix_3D_Multiply(long long int (*)[3], long long int (*)[3])’: user.cpp:16:35: error: ‘memset’ was not declared in this scope memset(C, 0, 9 * sizeof(long long)); ^ user.cpp:25:35: error: ‘memcpy’ was not declared in this scope memcpy(A, C, 9 * sizeof(long long)); ^ user.cpp: In function ‘long long int Expo(long long int (*)[3], long long int)’: user.cpp:40:40: error: ‘memcpy’ was not declared in this scope memcpy(A, result, 9 * sizeof(long long)); ^ user.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:55:51: error: ‘memcpy’ was not declared in this scope memcpy(MatrixA, CopyOfA, 9 * sizeof(long long)); ^ user.cpp:51:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%lld", &T); ^ user.cpp:54:84: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%lld %lld %lld %lld %lld %lld %lld", &X, &Y, &Z, &A, &B, &C, &N); ^