Compilare: main.cpp: In function 'void dfs(int, bool)': main.cpp:35:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < grafMuchii[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:136:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < events.size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:168:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= muchii.size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:180:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= muchii.size(); i++) ~~^~~~~~~~~~~~~~~~