Compilare: main.cpp: In function 'void dfs(int)': main.cpp:61:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<V[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:82:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:97:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<afis.size()-1;i++) ~^~~~~~~~~~~~~~ main.cpp:88:8: warning: unused variable 'j' [-Wunused-variable] {int i,j; ^ main.cpp: In function 'void dfs2(int)': main.cpp:104:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<V[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void bkt(int, int)': main.cpp:114:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for(i=0;i<G[afis[k-1]].size();i++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:130:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<G[node].size();j++) ~^~~~~~~~~~~~~~~