Compilare: main.cpp: In function 'int main()': main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<a.size();++i) ~^~~~~~~~~ main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<b.size();++i) ~^~~~~~~~~ main.cpp:19:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i].size()<f[i]) ~~~~~~~~~~~^~~~~ main.cpp:26:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz<a.size() and avem>0) ~~~^~~~~~~~~ main.cpp:34:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(f[i]>0 and cnt[i]<v[i].size() and v[i][cnt[i]]<=minim) ~~~~~~^~~~~~~~~~~~ main.cpp:50:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(cnt[i]<v[i].size() and v[i][cnt[i]]<poz) ~~~~~~^~~~~~~~~~~~ main.cpp:48:12: warning: 'lst' may be used uninitialized in this function [-Wmaybe-uninitialized] poz=lst+1; ~~~^~~~~~