Compilare: user.cpp: In function ‘int main()’: user.cpp:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:47: warning: ‘min_p’ may be used uninitialized in this function user.cpp:47: warning: ‘nmin_p’ may be used uninitialized in this function