Compilare: user.cpp: In function ‘int main()’: user.cpp:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:69: warning: ‘lmin’ may be used uninitialized in this function user.cpp:69: warning: ‘cmin’ may be used uninitialized in this function