Compilare: main.cpp: In function 'int DFS1(int)': main.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i < graf1[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:32:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int DFS2(int)': main.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i < graf2[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void afisare()': main.cpp:45:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < componente[i].size(); j++) ~~^~~~~~~~~~~~~~~~~~~~~~