Compilare: user.cpp: In function ‘void Dijkstra(int)’: user.cpp:38:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i < G[nod].size();i++) ^ user.cpp:24:15: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] int i,nod,val; ^ user.cpp: In function ‘int main()’: user.cpp:83:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,a,y,z; ^ user.cpp:84:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ubuntzei.in","r",stdin); ^ user.cpp:85:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ubuntzei.out","w",stdout); ^ user.cpp:87:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:88:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ user.cpp:92:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&c[i]); ^ user.cpp:97:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&a,&y,&z); ^