Submission #293975

#	Time	Username	Problem	Language	Result	Execution time	Memory
293975		Dovran	Highway Tolls (IOI18_highway)	C++11	Compilation error	0 ms	0 KiB

highway

#include <bits/stdc++.h>
#include "highway.h"
#define N 200009
#define pii pair <int, int>
#define ff first
#define ss second
#define sz size
#define pb push_back
#define ll long long

using namespace std;

int n, m, ln;
vector<int>e[N];
vector<int>asd;
map<int, int>c[N];
int ansS, ansT;

void find_pair(int NN, std::vector<int>u, std::vector<int>v, int a, int b){
	n=NN;
	m=u.size();
	for(int i=0; i<m; i++){
		e[u[i]].pb(v[i]);
		e[v[i]].pb(u[i]);
		
		c[v[i]][u[i]]=i;
		c[u[i]][v[i]]=i;
		
		
		asd.pb(0);
	}
	ln=ask(asd);
	int l=0, r=m-1;
	int x, in;
	while(r>=l){
		int md=(l+r)/2;
		for(int i = 0; i < m; i++) asd[i] = 0;
		for(int i=0; i<=md; i++) asd[i]=1;
		
		x=ask(asd);
		
		if(x==ln) l=md-1;
		else in = md, r=md+1;
	}
	queue<int> q;
	queue<int> q2;
	q.push(u[in]);
	q2.push(v[in]);
	int vis[N];
	vis[u[in]]=1, vis[v[in]]=1;
	
	vector<int> p, p2;
	int lft=0, rgt=0;
	while(!q.empty() and !q2.empty()){
		if(!lft){
			p.clear();
			int nd=q.front();
			q.pop();
			for(auto i:e[nd])
				if(!vis[i])
					vis[i]=vis[nd]+1, p.pb(i), q.push(i);
			
			sort(p.begin(), p.end());
			
			for(int i=0; i<m; i++)
				asd[i]=0;
			for(auto i:p)
				for(auto j:e[i]) asd[c[i][j]]=1;
			
			x=ask(asd);
			if(x!=ln){
				l=0, r=p.sz()-1;
				while(l>=r){
					int md=(l+r)/2;
					for(int i=0; i<m; i++)
						asd[i]=0;
					for(int i=0; i<=md; i++)
						for(auto j:e[p[i]]) asd[c[p[i]][j]]=1;
					x=ask(asd);
					if(x!=ln)
						in=md, r=md-1;
					else l=md+1;
					
				}
				ansS=p[in];
				lft=1;
			}
		}
		if(!rgt){
			p2.clear();
			int nd2=q2.front();
			q2.pop();
			for(auto i:e[nd2])
				if(!vis[i])
					vis[i]=vis[nd2]+1, p2.pb({vis[i], i}), q2.push(i);
			sort(p2.begin(), p2.end());
			
			for(int i=0; i<m; i++)
				asd[i]=0;
			for(auto i:p2)
				for(auto j:e[i.ss]) asd[c[i.ss][j]]=1;
			
			x=ask(asd);
			if(ask(asd)!=ln){
				l=0, r=p2.sz()-1;
				while(l>=r){
					int md=(l+r)/2;
					for(int i=0; i<m; i++)
						asd[i]=0;
					for(int i=0; i<=md; i++)
						for(auto j:e[p2[i].ss]) asd[c[p2[i].ss][j]]=1;
					x=ask(asd);
					if(x!=ln)
						in=md, r=md-1;
					else l=md+1;
					
				}
				ansT=p2[in];
				rgt=1;
			}
		}
	}
	answer(ansS, ansT);
}

Compilation message (stderr)

highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:95:42: error: no matching function for call to 'std::vector<int>::push_back(<brace-enclosed initializer list>)'
   95 |      vis[i]=vis[nd2]+1, p2.pb({vis[i], i}), q2.push(i);
      |                                          ^
In file included from /usr/include/c++/9/vector:67,
                 from /usr/include/c++/9/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:86,
                 from highway.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:1184:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1184 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/9/bits/stl_vector.h:1184:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const int&'}
 1184 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/9/bits/stl_vector.h:1200:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1200 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/9/bits/stl_vector.h:1200:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<int>::value_type&&' {aka 'int&&'}
 1200 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
highway.cpp:6:12: error: request for member 'second' in 'i', which is of non-class type 'int'
    6 | #define ss second
      |            ^~~~~~
highway.cpp:101:20: note: in expansion of macro 'ss'
  101 |     for(auto j:e[i.ss]) asd[c[i.ss][j]]=1;
      |                    ^~
highway.cpp:6:12: error: request for member 'second' in 'i', which is of non-class type 'int'
    6 | #define ss second
      |            ^~~~~~
highway.cpp:101:33: note: in expansion of macro 'ss'
  101 |     for(auto j:e[i.ss]) asd[c[i.ss][j]]=1;
      |                                 ^~
highway.cpp:6:12: error: request for member 'second' in 'p2.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
    6 | #define ss second
      |            ^~~~~~
highway.cpp:111:26: note: in expansion of macro 'ss'
  111 |       for(auto j:e[p2[i].ss]) asd[c[p2[i].ss][j]]=1;
      |                          ^~
highway.cpp:6:12: error: request for member 'second' in 'p2.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
    6 | #define ss second
      |            ^~~~~~
highway.cpp:111:43: note: in expansion of macro 'ss'
  111 |       for(auto j:e[p2[i].ss]) asd[c[p2[i].ss][j]]=1;
      |                                           ^~