Compilare: main.cpp: In function 'int main()': main.cpp:18:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[ind].size();++i) ~^~~~~~~~~~~~~~ main.cpp:20:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==v[ind].size()) ~^~~~~~~~~~~~~~~ main.cpp:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[ind].size();++i) ~^~~~~~~~~~~~~~ main.cpp:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[ind].size();++i) ~^~~~~~~~~~~~~~ main.cpp:37:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==v[ind].size()) ~^~~~~~~~~~~~~~~