Compilare: user.cpp: In function ‘int gasit(double, int&)’: user.cpp:25: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void read()’: user.cpp:55: warning: comparison between signed and unsigned integer expressions user.cpp:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result