Eroare de compilare: user.cpp: In function ‘void mul(int*, int*)’: user.cpp:45:27: error: ‘memset’ was not declared in this scope memset(C, 0, sizeof(C)); ^ user.cpp:52:27: error: ‘memcpy’ was not declared in this scope memcpy(A, C, sizeof(C)); ^ user.cpp: In function ‘int main()’: user.cpp:58:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algebra2.out", "w", stdout); ^