Language: C++

 
#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using vi=vector<int>;
using vvi=vector<vi>;
using vs=vector<string>;
using msi=map<string,int>;
using mii=map<int,int>;
using psi=pair<string,int>;
using pii=pair<int,int>;
using vlai=valarray<int>;
#define rep(i,n) for(int i=0;i<n;i++)
#define range(i,s,n) for(int i=s;i<n;i++)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define fs first
#define sc second
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define INF 1e9
#define EPS 1e-9
#define MOD (1e9+7)
void get(){}template<class H,class...T>void get(H&h,T&...t){cin>>h;get(t...);}
template<class T>void geti(T&a){for(auto&_:a)cin>>_;}
template<class T>void getii(T&a){for(auto&_:a)geti(_);}
void put(string d){}template<class H,class...T>void put(string d,H&h,T&...t){cout<<h;if(sizeof...(t))cout<<d;put(d,t...);}
template<class T>void puti(T&a,string d=" "){bool f=1;for(auto&_:a)cout<<(exchange(f,0)?"":d)<<_;cout<<endl;}
template<class T>void putii(T&a,string d=" "){for(auto&_:a)puti(_,d);}
#define dcl(...) int __VA_ARGS__;get(__VA_ARGS__)
#define dclt(t,...) t __VA_ARGS__;get(__VA_ARGS__)

struct UnionFind{
    int n;
    vi p,r;
    UnionFind(int N):n(N){
        p.resize(n);
    	iota(all(p),0);
        r.resize(n);
        fill(all(r),0);
    }
    void unite(int a, int b){
        int c=root(a),d=root(b); 
        if(c!=d) {
            if(r[c]<r[d]){
                p[c]=d;
            }else{
                p[d]=c;
                if(r[c]==r[d])r[c]++;
            }
        }
    }
    int root(int a){return p[a]=(p[a]==a?a:root(p[a]));}
    bool same(int a, int b){return root(a)==root(b);}
};

struct Kruskal{
    using Edge=pair<int,pair<int,int>>;
    list<Edge> edge;
	int n;
	Kruskal(){}
	Kruskal(int N):n(N){}
    void add(int C,int S,int T){
		edge.eb(C,mp(S,T));
	}
    void remove(int C,int S,int T){
		edge.erase(find(all(edge),mp(C,mp(S,T))));
	}
	pair<int,vector<Edge>> calcMST(){
		int ans=0;
		vector<Edge> ret;
		sort(all(edge),[](Edge a,Edge b){return a.fs<b.fs;});

		UnionFind uf(n);		
		for(auto e:edge){
			if(!uf.same(e.sc.fs, e.sc.sc)){
				ret.pb(e);
				ans+=e.fs;
				uf.unite(e.sc.fs, e.sc.sc);
				if(ret.size()==n-1){
					break;
				}
			}
		}
		return mp(ans,ret);
	}

};

int main(){
	int n,m;
	while(cin>>n>>m){
		Kruskal kr(n);
		rep(i,m){
			dcl(s,d,c);
			kr.add(c,s-1,d-1);
		}
		auto mst=kr.calcMST();
		int cost=mst.fs;
		int ans=0,anscost=0;

		for(auto e:mst.sc){
			kr.remove(e.fs, e.sc.fs, e.sc.sc);
			int cur=kr.calcMST().fs;
			if(cur != cost || cur==-1){
				ans++;
				anscost+=e.fs;
			}
			kr.add(e.fs, e.sc.fs, e.sc.sc);
		}
		cout<<ans<<" "<<anscost<<endl;
	}
	return 0;
}



Compiler output:
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h: In instantiation of 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = _List_iterator<pair<int, pair<int, int> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<Kruskal::calcMST()::<lambda(Kruskal::Edge, Kruskal::Edge)> >]':
/usr/include/c++/14/bits/stl_algo.h:4805:18:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = _List_iterator<pair<int, pair<int, int> > >; _Compare = Kruskal::calcMST()::<lambda(Kruskal::Edge, Kruskal::Edge)>]'
 4805 |       std::__sort(__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp));
      |       ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:73:7:   required from here
   73 |                 sort(all(edge),[](Edge a,Edge b){return a.fs<b.fs;});
      |                 ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:1906:50: error: no match for 'operator-' (operand types are 'std::_List_iterator<std::pair<int, std::pair<int, int> > >' and 'std::_List_iterator<std::pair<int, std::pair<int, int> > >')
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:67,
                 from /usr/include/c++/14/algorithm:60:
/usr/include/c++/14/bits/stl_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::reverse_iterator<_Iterator>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1790 |     operator-(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::move_iterator<_IteratorL>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166:
/usr/include/c++/14/valarray:1197:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const typename valarray<_Tp>::value_type&, const valarray<_Tp>&)'
 1197 | _DEFINE_BINARY_OPERATOR(-, __minus)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1197:1: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::valarray<_Tp>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/valarray:1197:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__minus, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const valarray<_Tp>&, const typename valarray<_Tp>::value_type&)'
 1197 | _DEFINE_BINARY_OPERATOR(-, __minus)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1197:1: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::valarray<_Tp>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/valarray:1197:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__minus, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const valarray<_Tp>&, const valarray<_Tp>&)'
 1197 | _DEFINE_BINARY_OPERATOR(-, __minus)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1197:1: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::valarray<_Tp>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
In file included from /usr/include/c++/14/valarray:605:
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const valarray<typename _Dom::value_type>&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const _Expr<_Dom1, typename _Dom1::value_type>&, const valarray<typename _Dom::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const typename _Dom::value_type&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const _Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const _Expr<_Dom1, typename _Dom1::value_type>&, const _Expr<_Dom2, typename _Dom2::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_algo.h:1906:50: note:   'std::_List_iterator<std::pair<int, std::pair<int, int> > >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
 1906 |                                 std::__lg(__last - __first) * 2,
      |                                           ~~~~~~~^~~~~~~~~
In file included from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/complex:46