Compilare: main.cpp: In function 'int Rezolva()': main.cpp:30:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<b.length(); i++) ~^~~~~~~~~~~ main.cpp:40:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (act == a.length()) ~~~~^~~~~~~~~~~~~ main.cpp:16:17: warning: unused variable 'rez' [-Wunused-variable] int act = 0,rez = 0,n = a.length(); ^~~ main.cpp:50:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^