Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:38:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int)': main.cpp:90:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:162:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ;i < edges.size(); i++) { ~~^~~~~~~~~~~~~~ main.cpp:170:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < query.size(); i++){ ~~^~~~~~~~~~~~~~ main.cpp:172:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(edgep < edges.size() && edges[edgep].speed <= quer.speed){ ~~~~~~^~~~~~~~~~~~~~