Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,N) for(int i=0,i##_max=(N);i<i##_max;++i)
#define repp(i,l,r) for(int i=(l),i##_max=(r);i<i##_max;++i)
#define per(i,N) for(int i=(N)-1;i>=0;--i)
#define perr(i,l,r) for(int i=r-1,i##_min(l);i>=i##_min;--i)
#define all(arr) (arr).begin(), (arr).end()
#define SP << " " <<
#define SPF << " "
#define SPEEDUP cin.tie(0);ios::sync_with_stdio(false);
#define MAX_I INT_MAX //1e9
#define MIN_I INT_MIN //-1e9
#define MAX_UI UINT_MAX //1e9
#define MAX_LL LLONG_MAX //1e18
#define MIN_LL LLONG_MIN //-1e18
#define MAX_ULL ULLONG_MAX //1e19
  typedef long long ll;
  typedef pair<int,int> PII;
  typedef pair<char,char> PCC;
  typedef pair<ll,ll> PLL;
  typedef pair<char,int> PCI;
  typedef pair<int,char> PIC;
  typedef pair<ll,int> PLI;
  typedef pair<int,ll> PIL; 
  typedef pair<ll,char> PLC; 
  typedef pair<char,ll> PCL; 

inline void YesNo(bool b){ cout << (b?"Yes" : "No") << endl;}
inline void YESNO(bool b){ cout << (b?"YES" : "NO") << endl;}
inline void Yay(bool b){ cout << (b?"Yay!" : ":(") << endl;}

const ll INF = 1e16;

struct edge{
  int f,t,c;
};

bool comp(const edge& l, const edge& r){
  if(l.t == r.t){
    if(l.c == r.c) return l.f < r.f;
    return l.c < r.c;
  }
  return l.t > r.t;
}

int main(void){
  SPEEDUP
  cout << setprecision(15);
  int N,M;cin >> N >> M;
  vector<edge> v(M);
  vector<edge> w(M);
  rep(i,M) cin >> v[i].f >> v[i].t >> v[i].c;
  sort(all(v),comp);
  vector<ll> cost(N+1,INF);
  cost[N] = 0;
  int index = 0;
  perr(x,1,N+1){
    if(cost[x] == INF)continue;
    while(index<N && v[index].t >= x){
      if(v[index].f > x) continue;
      cost[v[index].f] = min(cost[v[index].f],cost[x]+v[index].c);
      ++index;
    }
  }
  if(v[1] == INF) cout << -1 << endl;
  else cout << cost[1] << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:65:11: error: no match for 'operator==' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} and 'const ll' {aka 'const long long int'})
   65 |   if(v[1] == INF) cout << -1 << endl;
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:1:
/usr/include/c++/14/bits/regex.h:1103:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1103 |     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1103:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1199:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1199 |     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1199:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1274:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1274 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1274:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1366:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1366 |     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1366:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'const ll' {aka 'const long long int'}
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1441:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1441 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1441:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1534:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1534 |     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1534:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'const ll' {aka 'const long long int'}
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:1613:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1613 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1613:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/regex.h:2186:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const match_results<_BiIter, _Alloc>&, const match_results<_BiIter, _Alloc>&)'
 2186 |     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:2186:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_pair.h:1033:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1033 |     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1033:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::pair<_T1, _T2>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:441:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  441 |     operator==(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:441:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::reverse_iterator<_Iterator>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/stl_iterator.h:486:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  486 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:486:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::reverse_iterator<_Iterator>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1667 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::move_iterator<_IteratorL>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1737 |     operator==(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::move_iterator<_IteratorL>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
In file included from /usr/include/c++/14/bits/char_traits.h:42,
                 from /usr/include/c++/14/string:42,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/postypes.h:192:5: note: candidate: 'template<class _StateT> bool std::operator==(const fpos<_StateT>&, const fpos<_StateT>&)'
  192 |     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/postypes.h:192:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::fpos<_StateT>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
In file included from /usr/include/c++/14/string:43:
/usr/include/c++/14/bits/allocator.h:235:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const allocator<_CharT>&, const allocator<_T2>&)'
  235 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/14/bits/allocator.h:235:5: note:   template argument deduction/substitution failed:
a.cc:65:14: note:   '__gnu_cxx::__alloc_traits<std::allocator<edge>, edge>::value_type' {aka 'edge'} is not derived from 'const std::allocator<_CharT>'
   65 |   if(v[1] == INF) cout << -1 << endl;
      |              ^~~
In file included from /usr/i