Compilare: main.cpp: In function 'int main()': main.cpp:83:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[minpos].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp:89:30: warning: 'minpos' may be used uninitialized in this function [-Wmaybe-uninitialized] T[vecin] = minpos; ~~~~~~~~~^~~~~~~~