Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:26:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:69:9: warning: unused variable ‘ans’ [-Wunused-variable] int ans = 0, ways = 0, Max = max(DP[0][1], DP[1][1]); ^