Compilare: user.cpp:121: warning: this decimal constant is unsigned only in ISO C90 user.cpp:121: warning: this decimal constant is unsigned only in ISO C90 user.cpp:124: warning: this decimal constant is unsigned only in ISO C90 user.cpp:124: warning: this decimal constant is unsigned only in ISO C90 user.cpp:135: warning: this decimal constant is unsigned only in ISO C90 user.cpp:135: warning: this decimal constant is unsigned only in ISO C90 user.cpp:135: warning: this decimal constant is unsigned only in ISO C90 user.cpp:135: warning: this decimal constant is unsigned only in ISO C90 user.cpp:135: warning: this decimal constant is unsigned only in ISO C90 user.cpp:140: warning: this decimal constant is unsigned only in ISO C90 user.cpp:140: warning: this decimal constant is unsigned only in ISO C90 user.cpp:140: warning: this decimal constant is unsigned only in ISO C90 user.cpp:140: warning: this decimal constant is unsigned only in ISO C90 user.cpp:140: warning: this decimal constant is unsigned only in ISO C90 user.cpp:143: warning: this decimal constant is unsigned only in ISO C90 user.cpp:143: warning: this decimal constant is unsigned only in ISO C90 user.cpp:143: warning: this decimal constant is unsigned only in ISO C90 user.cpp:143: warning: this decimal constant is unsigned only in ISO C90 user.cpp:143: warning: this decimal constant is unsigned only in ISO C90 user.cpp:147: warning: this decimal constant is unsigned only in ISO C90 user.cpp:147: warning: this decimal constant is unsigned only in ISO C90 user.cpp:147: warning: this decimal constant is unsigned only in ISO C90 user.cpp:152: warning: this decimal constant is unsigned only in ISO C90 user.cpp:152: warning: this decimal constant is unsigned only in ISO C90 user.cpp:152: warning: this decimal constant is unsigned only in ISO C90