Compilare: main.cpp: In function 'void fil(int)': main.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<inv[nod].size();i++){ ~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, double, double)': main.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++){ ~^~~~~~~~~~~~~~