Compilare: user.cpp: In function ‘int main()’: user.cpp:9:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:15:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^ user.cpp:23:49: warning: ‘dmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout, "%d %d %d", smax, stmax+1, dmax+1); ^ user.cpp:23:49: warning: ‘stmax’ may be used uninitialized in this function [-Wmaybe-uninitialized]