Compilare: user.cpp: In function ‘int betesz()’: user.cpp:25:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:37:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int kivesz()’: user.cpp:43:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:49:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int hanyszor()’: user.cpp:55:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:66:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int prefix()’: user.cpp:73:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:81:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^