Submission #254722

#	Time	Username	Problem	Language	Result	Execution time	Memory
254722		MrRobot_28	Lampice (COCI19_lampice)	C++17	Compilation error	0 ms	0 KiB

lampice

#include <bits/stdc++.h>
using namespace std;
#define int long long
int n;
string s;
vector <vector <int> > g;
vector <int> _sz, h;
vector <bool> used;
bool flag;
int len;
vector <int> hash1, hash2;
unordered_map <pair <int, int>, int> mp, mp1;
vector <int> power;
const int const1 = 1e9 + 7;
void dfs1(int v, int p = -1)
{
	_sz[v] = 1;
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(to != p && !used[to])
		{
			h[to] = h[v] + 1;
			dfs1(to, v);
			_sz[v] += _sz[to];
		}
	}
}
void build(int v, int p = -1)
{
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(to != p && !used[to])
		{
			h[to] = h[v] + 1;
			build(to, v);
		}
	}
}
int centroid(int v, int szall, int p = -1)
{
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(to == p || used[to])
		{
			continue;
		}
		if(_sz[to] * 2 > szall)
		{
			return centroid(to, szall, v);
		}
	}
	return v;
}
vector <pair <int, int> > mass0, mass1;
vector <int> vec;
void dfs2(int v, int p)
{
	int ourhash = hash1[v];
	bool fl = false;
	if(vec.size() >= len / 2)
	{
		ourhash -= hash1[vec[vec.size() - len / 2]] * power[len / 2] % const1;
		if(hash1[vec[vec.size() -  len / 2]] == hash2[vec[vec.size() - len / 2]])
		{
			fl = true;
		}
		if(ourhash < 0)
		{
			ourhash += const1;
		}
	}
	else
	{
		fl = true;
	}
	mass0.push_back({ourhash, len - h[v]});
	if(fl && mp[{ourhash, len - h[v]}])
	{
		flag = true;
	}
	vec.push_back(v);
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(!used[to] && to != p)
		{
			hash1[to] = hash1[v] * 27 % const1 + s[to] - 'a' + 1;
			if(hash1[to] >= const1)
			{
				hash1[to] -= const1;
			}
			hash2[to] = hash2[v] + power[h[v]] * (s[to] - 'a' + 1) % const1;
			if(hash2[to] >= const1)
			{
				hash2[to] -= const1;
			}
				dfs2(to, v);
		}
	}
	vec.pop_back();
}
vector <pair <int, int> > mass;
void dfs3(int v, int p)
{
	int ourhash = hash1[v];
	bool fl = false;
	if(vec.size() >= len / 2)
	{
		ourhash -= hash1[vec[vec.size() - len / 2]] * power[len / 2] % const1;
		if(ourhash < 0)
		{
			ourhash += const1;
		}
		if(hash1[vec[vec.size() - len / 2]] == hash2[vec[vec.size() - len / 2]])
		{
			fl = true;
		}
	}
	else
	{
		fl = true;
	}
	if(fl && mp1[{ourhash, len - (h[v] + 1)}])
	{
		flag = true;
	}
	if(fl)
	{
		mass.push_back({ourhash, h[v] + 1});
		mp[{ourhash, h[v] + 1}] = 1;
	}
	vec.push_back(v);
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(to != p && !used[to])
		{
			hash1[to] = hash1[v] * 27 % const1 + s[to] - 'a' + 1;
			if(hash1[to] >= const1)
			{
				hash1[to] -= const1;
			}
			hash2[to] = hash2[v] + power[h[to]] * (s[to] - 'a' + 1) % const1;
			if(hash2[to] >= const1)
			{
				hash2[to] -= const1;
			}
			dfs3(to, v);
		}
	}
	vec.pop_back();
}
void go_to(int v)
{
	dfs1(v);
	v = centroid(v, _sz[v]);
	h[v] = 0;
	build(v);
	used[v] = 1;
	hash1[v] = hash2[v] = s[v] - 'a' + 1;
	mp[{s[v] - 'a' + 1, 1}] = 1;
	mass.push_back({s[v] -'a' + 1, 1});
	for(int i = 0; i  <g[v].size(); i++)
	{
		int to = g[v][i];
		if(!used[to])
		{
			hash1[to] = hash2[to] = s[to] - 'a' + 1;
			dfs2(to, v);
			vec.clear();
			vec.push_back(v);
			hash1[to] = (s[v] - 'a' + 1) * 27 + (s[to] - 'a' + 1);
			hash2[to] = (s[v] - 'a' + 1) + 27 * (s[to] - 'a' + 1);
			dfs3(to, v);
			vec.clear();
			while(mass0.size() > 0)
			{
				mp1[mass0.back()] = 1;
				mass1.push_back(mass0.back());
				mass0.pop_back();
			}
		}
	}
	while(mass1.size() > 0)
	{
		mp1[mass1.back()] = 0;
		mass1.pop_back();
	}
	while(mass.size() > 0)
	{
		pair <int, int> v = mass.back();
		mp[v] = 0;
		mass.pop_back();
	}
	for(int i = 0; i < g[v].size(); i++)
	{
		int to = g[v][i];
		if(!used[to])
		{
			go_to(to);
		}
	}
}
signed main(){
//	ios_base::sync_with_stdio(false);
//	cin.tie(NULL);
//	cout.tie(NULL);
	cin >> n;
	used.resize(n);
	_sz.resize(n);
	cin >> s;
	power.resize(n + 1);
	power[0] = 1;
	for(int i = 1; i <= n; i++)
	{
		power[i] = power[i - 1] * 27 % const1;
	}
	h.resize(n);
	hash1.resize(n);
	hash2.resize(n);
	g.resize(n);
	for(int i = 0; i < n - 1; i++)
	{
		int a, b;
		cin >> a >> b;
		a--;
		b--;
		g[a].push_back(b);
		g[b].push_back(a);
	}
	int l = 0, r = n / 2 + 1;
	while(r - l > 1)
	{
		int midd = (r + l) / 2;
		len = midd * 2;
		for(int i = 0; i < n; i++)
		{
			used[i] = 0;
		}
		flag = false;
		go_to(0);
		if(flag)
		{
			l = midd;
		}
		else
		{
			r = midd;
		}
	}
	int l1 = 0, r1 = n / 2 + 1;
	while(r1 - l1 > 1)
	{
		int midd = (r1 + l1) / 2;
		len = midd * 2 + 1;
		for(int i = 0; i < n; i++)
		{
			used[i] = 0;
		}
		flag = false;
		go_to(0);
		if(flag)
		{
			l1 = midd;
		}
		else
		{
			r1 = midd;
		}
	}
	cout << max(l * 2, l1 * 2 + 1);
	return 0;
}

Compilation message (stderr)

In file included from /usr/include/c++/7/bits/hashtable.h:35:0,
                 from /usr/include/c++/7/unordered_map:47,
                 from /usr/include/c++/7/functional:60,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
                 from lampice.cpp:1:
/usr/include/c++/7/bits/hashtable_policy.h: In instantiation of 'struct std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > >':
/usr/include/c++/7/type_traits:143:12:   required from 'struct std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > >'
/usr/include/c++/7/type_traits:154:31:   required from 'struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
/usr/include/c++/7/bits/unordered_map.h:103:66:   required from 'class std::unordered_map<std::pair<long long int, long long int>, long long int>'
lampice.cpp:12:38:   required from here
/usr/include/c++/7/bits/hashtable_policy.h:87:34: error: no match for call to '(const std::hash<std::pair<long long int, long long int> >) (const std::pair<long long int, long long int>&)'
  noexcept(declval<const _Hash&>()(declval<const _Key&>()))>
           ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/7/bits/move.h:54:0,
                 from /usr/include/c++/7/bits/stl_pair.h:59,
                 from /usr/include/c++/7/bits/stl_algobase.h:64,
                 from /usr/include/c++/7/bits/specfun.h:45,
                 from /usr/include/c++/7/cmath:1914,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:41,
                 from lampice.cpp:1:
/usr/include/c++/7/type_traits: In instantiation of 'struct std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >':
/usr/include/c++/7/bits/unordered_map.h:103:66:   required from 'class std::unordered_map<std::pair<long long int, long long int>, long long int>'
lampice.cpp:12:38:   required from here
/usr/include/c++/7/type_traits:154:31: error: 'value' is not a member of 'std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > >'
     : public __bool_constant<!bool(_Pp::value)>
                               ^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/7/unordered_map:48:0,
                 from /usr/include/c++/7/functional:60,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:71,
                 from lampice.cpp:1:
/usr/include/c++/7/bits/unordered_map.h: In instantiation of 'class std::unordered_map<std::pair<long long int, long long int>, long long int>':
lampice.cpp:12:38:   required from here
/usr/include/c++/7/bits/unordered_map.h:103:66: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>  _Hashtable;
                                                                  ^~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:110:45: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::key_type key_type;
                                             ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:111:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::value_type value_type;
                                               ^~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:112:48: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::mapped_type mapped_type;
                                                ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:113:43: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::hasher hasher;
                                           ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:114:46: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::key_equal key_equal;
                                              ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:115:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::allocator_type allocator_type;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:120:45: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::pointer  pointer;
                                             ^~~~~~~
/usr/include/c++/7/bits/unordered_map.h:121:50: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::const_pointer const_pointer;
                                                  ^~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:122:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::reference  reference;
                                               ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:123:52: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::const_reference const_reference;
                                                    ^~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:124:46: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::iterator  iterator;
                                              ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:125:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::const_iterator const_iterator;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:126:51: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::local_iterator local_iterator;
                                                   ^~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:127:57: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::const_local_iterator const_local_iterator;
                                                         ^~~~~~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:128:47: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::size_type  size_type;
                                               ^~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:129:52: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       typedef typename _Hashtable::difference_type difference_type;
                                                    ^~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:133:55: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       using node_type = typename _Hashtable::node_type;
                                                       ^
/usr/include/c++/7/bits/unordered_map.h:134:73: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       using insert_return_type = typename _Hashtable::insert_return_type;
                                                                         ^
/usr/include/c++/7/bits/unordered_map.h:288:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       operator=(initializer_list<value_type> __l)
       ^~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:386:2: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
  emplace(_Args&&... __args)
  ^~~~~~~
/usr/include/c++/7/bits/unordered_map.h:469:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
         try_emplace(const key_type& __k, _Args&&... __args)
         ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:487:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
         try_emplace(key_type&& __k, _Args&&... __args)
         ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:578:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       insert(const value_type& __x)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:584:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       insert(value_type&& __x)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:591:2: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
  insert(_Pair&& __x)
  ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:657:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       insert(initializer_list<value_type> __l)
       ^~~~~~
/usr/include/c++/7/bits/unordered_map.h:685:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
         insert_or_assign(const key_type& __k, _Obj&& __obj)
         ^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:703:9: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
         insert_or_assign(key_type&& __k, _Obj&& __obj)
         ^~~~~~~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:953:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       equal_range(const key_type& __x)
       ^~~~~~~~~~~
/usr/include/c++/7/bits/unordered_map.h:957:7: error: 'value' is not a member of 'std::__not_<std::__and_<std::__is_fast_hash<std::hash<std::pair<long long int, long long int> > >, std::__detail::__is_noexcept_hash<std::pair<long long int, long long int>, std::hash<std::pair<long long int, long long int> > > > >'
       equal_range(const key_type& __x) const
       ^~~~~~~~~~~
lampice.cpp: In function 'void dfs1(long long int, long long int)':
lampice.cpp:18:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~
lampice.cpp: In function 'void build(long long int, long long int)':
lampice.cpp:31:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~
lampice.cpp: In function 'long long int centroid(long long int, long long int, long long int)':
lampice.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~
lampice.cpp: In function 'void dfs2(long long int, long long int)':
lampice.cpp:63:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(vec.size() >= len / 2)
     ~~~~~~~~~~~^~~~~~~~~~
lampice.cpp:80:13: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
  if(fl && mp[{ourhash, len - h[v]}])
             ^
lampice.cpp:85:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~
lampice.cpp: In function 'void dfs3(long long int, long long int)':
lampice.cpp:110:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(vec.size() >= len / 2)
     ~~~~~~~~~~~^~~~~~~~~~
lampice.cpp:126:14: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
  if(fl && mp1[{ourhash, len - (h[v] + 1)}])
              ^
lampice.cpp:133:5: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
   mp[{ourhash, h[v] + 1}] = 1;
     ^
lampice.cpp:136:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < g[v].size(); i++)
                 ~~^~~~~~~~~~~~~
lampice.cpp: In function 'void go_to(long long int)':
lampice.cpp:164:4: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<long long int, long long int>, long long int>' and '<brace-enclosed initializer list>')
  mp[{s[v] - 'a' + 1, 1}] = 1;
    ^
lampice.cpp:166:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i  <g[v].size(); i++)
                 ~~~^~~~~~~~~~~~
lampice.cpp:181:8: error: no match for 'operator[]' (operand types are 'std::unordered_map<std::pair<long long int, long long int>, long long int>' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> > >::value_type {aka std::pair<long long int, long long int>}')
     mp1[mass0.back()] = 1;
        ^
lampice.cpp:189:6