Compilare: main.cpp: In function 'void DFS(int)': main.cpp:27:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < graf[k].size(); i++) { ~~^~~~~~~~~~~~~~~~ main.cpp:26:12: warning: unused variable 'j' [-Wunused-variable] int i, j, newV; ^ main.cpp: In function 'int main()': main.cpp:90:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < SSC[i].size(); j++) { ~~^~~~~~~~~~~~~~~ main.cpp: In function 'bool Compare(std::pair<int, int>, std::pair<int, int>)': main.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type] } ^