Compilare: user.cpp: In function ‘int main()’: user.cpp:55:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int N; fscanf(fin, "%d", &N); ^ user.cpp:57:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int tip, x; fscanf (fin, "%d%d", &tip, &x); ^