Compilare: user.cpp: In function ‘int main()’: user.cpp:30:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<lista[i].size(); j++){ ^ user.cpp:25:35: warning: unused variable ‘solind’ [-Wunused-variable] int maxx, aux, solter=200000, solind; ^ user.cpp: In function ‘void dfs(int)’: user.cpp:57:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<lista[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:12:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sediu.in","r",stdin); ^ user.cpp:13:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sediu.out","w",stdout); ^ user.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:18:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^