debug

debug.cc

struct DDMY{ ostringstream o; template<class T>DDMY& operator,(const T &t){o<<t<<",";return *this;} string operator*(){ return o.str().substr(0,o.str().size()-1); } };
#define debug(args...) cout<<"("#args")=("<< *(DDMY(),args)<<") (L"<<__LINE__<<")"<<endl
template<class T> std::ostream &operator<<(std::ostream &o,const std::vector<T> &v)
{ o << "["; for(std::size_t i=0;i<v.size();i++) o << v[i] << (i < v.size()-1 ? ",":""); return o << "]"; }
template<class T,class U> std::ostream &operator<<(std::ostream &o,const std::pair<T,U> &v)
{ return o << v.first << ":" << v.second; }
template<class T,class U> std::ostream &operator<<(std::ostream &o,const std::map<T,U> &v)
{ o << "{"; typename std::map<T,U>::const_iterator i=v.begin(),j=i;++j;for(;i!=v.end();++i,++j) o << *i << (j!=v.end()? ",":""); return o << "}"; }
template<class T> std::ostream &operator<<(std::ostream &o,const std::set<T> &v)
{ o << "{"; typename std::set<T>::const_iterator i=v.begin(),j=i;++j;for(;i!=v.end();++i,++j) o << *i << (j!=v.end()? ",":""); return o << "}"; }