Compilare: user.cpp: In function ‘void apm(int)’: user.cpp:82:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < g[start].size();i ++) ~~^~~~~~~~~~~~~~~~~ user.cpp:94:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < g[s.nod].size();i ++) ~~^~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:107:9: warning: unused variable ‘lel’ [-Wunused-variable] int lel = 0; ^~~