Compilare: user.cpp: In function ‘void dist(int, int*)’: user.cpp:27:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<graf[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:78:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<rasp.size(); i++) ^ user.cpp:50:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("graf.in","r",stdin); ^ user.cpp:51:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("graf.out","w",stdout); ^ user.cpp:52:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&m,&st,&dr); ^ user.cpp:58:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^