Compilare: main.cpp: In function 'bool verif(int)': main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:11: warning: unused variable 'ok' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^~ main.cpp:78:18: warning: unused variable 'j' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^ main.cpp:78:20: warning: unused variable 'cnt' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^~~ main.cpp:78:26: warning: unused variable 'h' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^ main.cpp:78:28: warning: unused variable 'l' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^ main.cpp:78:30: warning: unused variable 'r' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^ main.cpp:78:32: warning: unused variable 't' [-Wunused-variable] int m,ok=0,i,j,cnt=4,h,l,r,t; ^