Compilare: user.cpp: In function ‘int main()’: user.cpp:30:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<kaydyt.size(); ++i) { ^ user.cpp:49:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<kaaret[w.first].size(); ++i) { ^ user.cpp:62:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<et.size(); ++i) { ^