Compilare: main.cpp: In function 'int main()': main.cpp:36:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for(j=0;j<afis[i].size();j++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:43:8: warning: unused variable 'j' [-Wunused-variable] {int i,j,x,y; ^ main.cpp: In function 'void dfs(int)': main.cpp:54:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs1(int)': main.cpp:63:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<gt[node].size();i++) ~^~~~~~~~~~~~~~~~