Compilare: user.cpp: In function 'void write()': user.cpp:21: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int' user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:22: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int' user.cpp:23: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int' user.cpp: In function 'void dublu(int)': user.cpp:28: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void sterg()': user.cpp:53: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void read()': user.cpp:61: warning: format '%u' expects type 'unsigned int*', but argument 2 has type 'long unsigned int*' user.cpp:63: warning: comparison between signed and unsigned integer expressions user.cpp:64: warning: format '%u' expects type 'unsigned int*', but argument 2 has type 'long unsigned int*'