Compilare: main.cpp: In function 'void Tarjan(int)': main.cpp:23:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < edge[node].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:82:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < ctc.size(); i++) ~~^~~~~~~~~~~~ main.cpp:85:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < ctc[i].size(); j++) ~~^~~~~~~~~~~~~~~