Language: C++

#include<bits/stdc++.h>
#define P pair<int,int>
#define rep(i,n) for(int i=0;i<n;i++)
#define INF 1<<28
#define mk make_pair
using namespace std;
int main(){
  int n,m,t;
  cin>>n>>m>>t;
  vector<pair<int,int> >a[n];
  rep(i,m){
    int q,w,e;
    cin>>q>>w>>e;
    a[q].push_back(mk(w,e));
  }
    priority_queue<P,vector<P>,greater<P> >q;
    int d[n];
    fill(d,d+n,INF);
    q.push(mk(0,t));
    d[t]=0;
    while(!q.empty()){
      P p=q.top();q.pop();
      int v=p.second;
      if(d[v]<p.first)continue;
      for(int i=0;i<a[v].size();i++){
        P ed=a[v][i];
        if(d[ed.first]>d[v]+ed.second){
          d[ed.first]=d[v]+ed.second;
          q.push(mk(d[ed.first],ed.first));
        }
      }
    }
  rep(i,n)cout<<d[i]==INF?"INF":d[i]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:21: error: no match for 'operator==' (operand types are 'std::basic_ostream<char>' and 'int')
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<endl;
      |           ~~~~~~~~~~^~
      |               |
      |               std::basic_ostream<char>
a.cc:33:21: note: candidate: 'operator==(int, int)' (built-in)
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<endl;
      |                     ^
a.cc:33:21: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'int'
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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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:4:16: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
    4 | #define INF 1<<28
      |                ^~
a.cc:33:23: note: in expansion of macro 'INF'
   33 |   rep(i,n)cout<<d[i]==INF?"INF":d[i]<<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