Compilare: user.cpp: In function ‘void tare_conex(int)’: user.cpp:29: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void fa_muchii()’: user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void read()’: user.cpp:81: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:84: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int df(int, int)’: user.cpp:103: warning: comparison between signed and unsigned integer expressions