Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~ main.cpp:23:15: warning: overflow in implicit constant conversion [-Woverflow] dp[x][j] = -1e17; ^~~~ main.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~ main.cpp:31:14: warning: overflow in implicit constant conversion [-Woverflow] tmp[j] = -1e17; ^~~~ main.cpp:48:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < edges[x].size();++i) { ~~^~~~~~~~~~~~~~~~~