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:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int kivesz()’: user.cpp:44:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:51:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int hanyszor()’: user.cpp:57:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp: In function ‘int prefix()’: user.cpp:72:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s.length();i++) ~^~~~~~~~~~~ user.cpp:79:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i>=s.length()) ~^~~~~~~~~~~~ user.cpp:69:9: warning: unused variable ‘dbp’ [-Wunused-variable] int dbp=0; ^~~