Compilare: main.cpp: In function 'void dfs(int)': main.cpp:31:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v[vf].size(); i++) ~^~~~~~~~~~~~~ main.cpp: In function 'void dijkstra()': main.cpp:42:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v[1].size(); i++) ~^~~~~~~~~~~~ main.cpp:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v[minn].size(); i++) ~^~~~~~~~~~~~~~~ main.cpp:54:45: warning: value computed is not used [-Wunused-value] d[v[minn][i].second]+d[minn]+v[minn][i].first; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:59:45: warning: value computed is not used [-Wunused-value] d[v[minn][i].second]+d[minn]+v[minn][i].first; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~