Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:29:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i != L[node].size(); ++i) { ^ user.cpp: In function ‘void solve(int)’: user.cpp:49:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i != L[node].size(); ++i) { ^ user.cpp:65:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i != L[node].size(); ++i) { ^ user.cpp:76:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < curieri[fiu].size(); ++i) { ^ user.cpp:97:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < curieri[node].size() && dp1[config] != INF; ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:180:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < curieri[i].size(); ++j) { ^ user.cpp:182:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < curieri[Parent[i]].size(); ++k) { ^