Compilare: user.cpp: In function ‘int main()’: user.cpp:17:31: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(n + 1, MAXDIM + 3, fin); ^ user.cpp:18:31: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(m + 1, MAXDIM + 3, fin); ^