Language: C++

#include<iostream>
#include<vector>
#include<queue>
#include<algorithm>
#include<functional>
#include<cmath>
using namespace std;
#define P pair<int,int>
int V,E;
struct edge{int to,cost;};
vector<edge>G[110000];
int ans[110000];
const int INF=pow(2,30);
int main(){
	fill(ans,ans+100000,INF);
	int r;
	cin>>V>>E>>r;
	for(int i=0;i<E;i++){
	int s,t,d;
	cin>>s>>t>>d;
	edge tmp;
	tmp.to=t,tmp.cost=d;
	G[s].push_back(tmp);
	}
	ans[r]=0;
	priority_queue<P,vector<P>,greater<P>()>que;
	que.push(make_pair(0,r));//距離、番号
	while(true){
		if(que.size()==0)break;
		//for(int i=0;i<V;i++)cout<<ans[i]<<" ";cout<<" ";
		P tmp=que.top();//ここで使われていないものの中で最も距離が小さい頂点vの番号を求める
		que.pop();
		//cout<<tmp.first<<" "<<tmp.second<<endl;
		int v=tmp.second;
		for(int i=0;i<G[v].size();i++){
			if(ans[G[v][i].to]>ans[v]+G[v][i].cost){
			ans[G[v][i].to]=ans[v]+G[v][i].cost;
			que.push(make_pair(ans[i],G[v][i].to));
			}
		}
	}
	for(int i=0;i<V;i++){
	if(ans[i]==INF)cout<<"INF"<<endl;
	else cout<<ans[i]<<endl;
	}
	return 0;
}

Compiler output:
In file included from /usr/include/c++/14/queue:66,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_queue.h: In instantiation of 'class std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int> >, std::greater<std::pair<int, int> >()>':
a.cc:26:42:   required from here
   26 |         priority_queue<P,vector<P>,greater<P>()>que;
      |                                                 ^~~
/usr/include/c++/14/bits/stl_queue.h:538:18: error: data member 'std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int> >, std::greater<std::pair<int, int> >()>::comp' invalidly declared function type
  538 |       _Compare   comp;
      |                  ^~~~
a.cc: In function 'int main()':
a.cc:26:49: error: no matching function for call to 'std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int> >, std::greater<std::pair<int, int> >()>::priority_queue()'
   26 |         priority_queue<P,vector<P>,greater<P>()>que;
      |                                                 ^~~
/usr/include/c++/14/bits/stl_queue.h:691:9: note: candidate: 'template<class _InputIterator, class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&, _Sequence&&, const _Alloc&) [with _Alloc = _InputIterator; _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  691 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:691:9: note:   candidate expects 5 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:679:9: note: candidate: 'template<class _InputIterator, class _Alloc, class, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&, const _Sequence&, const _Alloc&) [with _Alloc = _InputIterator; <template-parameter-2-3> = _Alloc; _Requires = <template-parameter-1-3>; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  679 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:679:9: note:   candidate expects 5 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:671:9: note: candidate: 'template<class _InputIterator, class _Alloc, class, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&, const _Alloc&) [with _Alloc = _InputIterator; <template-parameter-2-3> = _Alloc; _Requires = <template-parameter-1-3>; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  671 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:671:9: note:   candidate expects 4 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:663:9: note: candidate: 'template<class _InputIterator, class _Alloc, class, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Alloc&) [with _Alloc = _InputIterator; <template-parameter-2-3> = _Alloc; _Requires = <template-parameter-1-3>; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  663 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:663:9: note:   candidate expects 3 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:649:9: note: candidate: 'template<class _InputIterator, class> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&, _Sequence&&) [with <template-parameter-2-2> = _InputIterator; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  649 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:649:9: note:   candidate expects 4 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:638:9: note: candidate: 'template<class _InputIterator, class> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&, const _Sequence&) [with <template-parameter-2-2> = _InputIterator; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  638 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:638:9: note:   candidate expects 4 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:629:9: note: candidate: 'template<class _InputIterator, class> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(_InputIterator, _InputIterator, const _Compare&) [with <template-parameter-2-2> = _InputIterator; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  629 |         priority_queue(_InputIterator __first, _InputIterator __last,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:629:9: note:   candidate expects 2 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:594:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(std::priority_queue<_Tp, _Sequence, _Compare>&&, const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  594 |         priority_queue(priority_queue&& __q, const _Alloc& __a)
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:594:9: note:   candidate expects 2 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:590:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const std::priority_queue<_Tp, _Sequence, _Compare>&, const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  590 |         priority_queue(const priority_queue& __q, const _Alloc& __a)
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:590:9: note:   candidate expects 2 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:585:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Compare&, _Sequence&&, const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  585 |         priority_queue(const _Compare& __x, _Sequence&& __c, const _Alloc& __a)
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:585:9: note:   candidate expects 3 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:579:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Compare&, const _Sequence&, const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  579 |         priority_queue(const _Compare& __x, const _Sequence& __c,
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:579:9: note:   candidate expects 3 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:573:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Compare&, const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  573 |         priority_queue(const _Compare& __x, const _Alloc& __a)
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:573:9: note:   candidate expects 2 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:569:9: note: candidate: 'template<class _Alloc, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Alloc&) [with _Requires = _Alloc; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  569 |         priority_queue(const _Alloc& __a)
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:569:9: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/stl_queue.h:554:9: note: candidate: 'template<class _Seq, class _Requires> std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue() [with _Requires = _Seq; _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  554 |         priority_queue()
      |         ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:554:9: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/stl_queue.h:551:43: error: no type named 'type' in 'struct std::enable_if<false, void>'
  551 |       template<typename _Seq = _Sequence, typename _Requires = typename
      |                                           ^~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:563:7: note: candidate: 'std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Compare&, _Sequence&&) [with _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = std::greater<std::pair<int, int> >()]'
  563 |       priority_queue(const _Compare& __x, _Sequence&& __s = _Sequence())
      |       ^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_queue.h:563:7: note:   candidate expects 2 arguments, 0 provided
/usr/include/c++/14/bits/stl_queue.h:558:7: note: candidate: 'std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue(const _Compare&, const _Se