Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:71:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void precalcGG()’: user.cpp:116:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Bic[i].size(); j++) ^ user.cpp: In function ‘void precalcRoad(int, int, int)’: user.cpp:149:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Bic[bic].size(); i++) ^ user.cpp:166:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < G[Bic[bic][j]].size(); k++) ^ user.cpp:207:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < X.size(); i++) ^ user.cpp:209:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Bic[bic].size(); i++) ^ user.cpp: In function ‘void Path()’: user.cpp:233:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Bic[node].size(); j++) ^ user.cpp:238:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Bic[node].size(); j++) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:258:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < GG[node].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:298:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Solution.size(); i++) ^