Compilare: main.cpp: In function 'void Dijkstra(int)': main.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < G[minim].size(); j++){ ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:11: warning: unused variable 'j' [-Wunused-variable] int i,j,a1,a2,c1,nrloc,urm,minim; ^ main.cpp:86:22: warning: 'urm' may be used uninitialized in this function [-Wmaybe-uninitialized] Dijkstra(urm); ^