Compilare: user.cpp: In function ‘int dfs(int, int)’: user.cpp:16:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i < adia[nod].size(); i++) { ~~^~~~~~~~~~~~~~~~~~ user.cpp: In function ‘void dfs2(int, int, int)’: user.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i < adia[nod].size(); i++) { ~~^~~~~~~~~~~~~~~~~~ user.cpp:57:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i < adia[nod].size(); i++) { ~~^~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:106:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j(0); j < adia[i].size(); j++) ~~^~~~~~~~~~~~~~~~ user.cpp: In function ‘int dfs(int, int)’: user.cpp:29:53: warning: ‘poztata’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (int i((poztata + 1) % adia[nod].size()); i != poztata; i = (i + 1) % adia[nod].size()) { ~~^~~~~~~~~~