Compilare: main.cpp: In function 'void DFS(int, int)': main.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void get_lant(int)': main.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:42:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] bool ok=0; ^~ main.cpp: In function 'void solve_dp1(int, int, int)': main.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void solve_dp2(int, int, int)': main.cpp:76:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void solve_dp3(int, int, int)': main.cpp:90:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<V[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:212:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<v[nod].size();k++) ~^~~~~~~~~~~~~~