Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[k].size(); i++){ ~~^~~~~~~~~~~~~ main.cpp: In function 'void Dijkstra(int)': main.cpp:33:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[x].size(); i++){ ~~^~~~~~~~~~~~~