| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 733621 | bin9638 | Duathlon (APIO18_duathlon) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define N 200010
#define ll long long
#define fs first
#define sc second
#define ii pair<int,int>
#define pb push_back
#define int ll
int ans=0,times,num[N],low[N],n,m,ktr[N],dem,sz[N],child[N];
vector<int>g[N],edge[N];
stack<int>st;
void visit(int u,int p)
{
num[u]=low[u]=++times;
for(auto v:g[u])
if(v!=p)
{
if(num[v]!=0)
{
low[u]=min(low[u],num[v]);
}else
{
st.push(u);
visit(v,u);
low[u]=min(low[u],low[v]);
if(low[v]>=num[u])
{
int k;
dem++;
do{
k=st.top();
st.pop();
if(ktr[k]!=dem)
{
sz[dem]++;
ktr[k]=dem;
edge[dem].pb(k);
edge[k].pb(dem);
}
}while(k!=u);
}
}
}
st.push(u);
}
void build(int u,int p)
{
child[u]=(u<=n);
//cout<<u<<" "<<child[u]<<endl;
for(auto v:edge[u])
if(v!=p)
{
build(v,u);
child[u]+=child[v];
}
}
void DFS(int u,int p)
{
if(u<=n)
{
int sum=n-1;
for(auto v:edge[u])
if(v!=p)
{
sum-=child[v];
ans+=sum*child[v];
// cout<<sum<<" "<<child[v]<<endl;
}
}else
{
int sum=n;
for(auto v:edge[u])
if(v!=p)
{
sum-=child[v];
ans+=sum*child[v]*(sz[u]-2);
// cout<<u<<" "<<sum<<" "<<child[v]<<" "<<sz[u]<<endl;
}
}
//cout<<u<<" "<<ans*2<<endl;
for(auto v:edge[u])
if(v!=p)
DFS(v,u);
}
int32_t main()
{
freopen("A.inp","r",stdin);
freopen("A.out","w",stdout);
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
cin>>n>>m;
for(int i=1;i<=m;i++)
{
int u,v;
cin>>u>>v;
g[u].pb(v);
g[v].pb(u);
}
dem=n;
for(int i=1;i<=n;i++)
if(num[i]==0)
visit(i,0);
//cout<<dem<<endl;
build(1,0);
// cout<<child[1]<<endl;
DFS(1,0);
cout<<ans*2;
return 0;
}
Compilation message (stderr)
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant: In instantiation of 'constexpr decltype(auto) std::visit(_Visitor&&, _Variants&& ...) [with _Visitor = long long int&; _Variants = {int}]':
count_triplets.cpp:112:22: required from here
/usr/include/c++/10/variant:1702:23: error: request for member 'valueless_by_exception' in '__variants#0', which is of non-class type 'int'
1702 | if ((__variants.valueless_by_exception() || ...))
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/variant:1706:22: error: no matching function for call to 'get<0>(int)'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:60,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/utility:223:5: note: candidate: 'template<long unsigned int _Int, class _Tp1, class _Tp2> constexpr typename std::tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type& std::get(std::pair<_Tp1, _Tp2>&)'
223 | get(std::pair<_Tp1, _Tp2>& __in) noexcept
| ^~~
/usr/include/c++/10/utility:223:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::pair<_Tp1, _Tp2>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:60,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/utility:228:5: note: candidate: 'template<long unsigned int _Int, class _Tp1, class _Tp2> constexpr typename std::tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type&& std::get(std::pair<_Tp1, _Tp2>&&)'
228 | get(std::pair<_Tp1, _Tp2>&& __in) noexcept
| ^~~
/usr/include/c++/10/utility:228:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::pair<_Tp1, _Tp2>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:60,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/utility:233:5: note: candidate: 'template<long unsigned int _Int, class _Tp1, class _Tp2> constexpr const typename std::tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type& std::get(const std::pair<_Tp1, _Tp2>&)'
233 | get(const std::pair<_Tp1, _Tp2>& __in) noexcept
| ^~~
/usr/include/c++/10/utility:233:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::pair<_Tp1, _Tp2>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:60,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/utility:238:5: note: candidate: 'template<long unsigned int _Int, class _Tp1, class _Tp2> constexpr const typename std::tuple_element<_Int, std::pair<_Tp1, _Tp2> >::type&& std::get(const std::pair<_Tp1, _Tp2>&&)'
238 | get(const std::pair<_Tp1, _Tp2>&& __in) noexcept
| ^~~
/usr/include/c++/10/utility:238:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::pair<_Tp1, _Tp2>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/algorithm:60,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/utility:247:5: note: candidate: 'template<class _Tp, class _Up> constexpr _Tp& std::get(std::pair<_T1, _T2>&)'
247 | get(pair<_Tp, _Up>& __p) noexcept
| ^~~
/usr/include/c++/10/utility:247:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:252:5: note: candidate: 'template<class _Tp, class _Up> constexpr const _Tp& std::get(const std::pair<_T1, _T2>&)'
252 | get(const pair<_Tp, _Up>& __p) noexcept
| ^~~
/usr/include/c++/10/utility:252:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:257:5: note: candidate: 'template<class _Tp, class _Up> constexpr _Tp&& std::get(std::pair<_T1, _T2>&&)'
257 | get(pair<_Tp, _Up>&& __p) noexcept
| ^~~
/usr/include/c++/10/utility:257:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:262:5: note: candidate: 'template<class _Tp, class _Up> constexpr const _Tp&& std::get(const std::pair<_T1, _T2>&&)'
262 | get(const pair<_Tp, _Up>&& __p) noexcept
| ^~~
/usr/include/c++/10/utility:262:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:267:5: note: candidate: 'template<class _Tp, class _Up> constexpr _Tp& std::get(std::pair<_Up, _Tp>&)'
267 | get(pair<_Up, _Tp>& __p) noexcept
| ^~~
/usr/include/c++/10/utility:267:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:272:5: note: candidate: 'template<class _Tp, class _Up> constexpr const _Tp& std::get(const std::pair<_Up, _Tp>&)'
272 | get(const pair<_Up, _Tp>& __p) noexcept
| ^~~
/usr/include/c++/10/utility:272:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:277:5: note: candidate: 'template<class _Tp, class _Up> constexpr _Tp&& std::get(std::pair<_Up, _Tp>&&)'
277 | get(pair<_Up, _Tp>&& __p) noexcept
| ^~~
/usr/include/c++/10/utility:277:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/utility:282:5: note: candidate: 'template<class _Tp, class _Up> constexpr const _Tp&& std::get(const std::pair<_Up, _Tp>&&)'
282 | get(const pair<_Up, _Tp>&& __p) noexcept
| ^~~
/usr/include/c++/10/utility:282:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/tuple:39,
from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/array:334:5: note: candidate: 'template<long unsigned int _Int, class _Tp, long unsigned int _Nm> constexpr _Tp& std::get(std::array<_Tp, _Nm>&)'
334 | get(array<_Tp, _Nm>& __arr) noexcept
| ^~~
/usr/include/c++/10/array:334:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::array<_Tp, _Nm>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/tuple:39,
from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/array:343:5: note: candidate: 'template<long unsigned int _Int, class _Tp, long unsigned int _Nm> constexpr _Tp&& std::get(std::array<_Tp, _Nm>&&)'
343 | get(array<_Tp, _Nm>&& __arr) noexcept
| ^~~
/usr/include/c++/10/array:343:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::array<_Tp, _Nm>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/tuple:39,
from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/array:351:5: note: candidate: 'template<long unsigned int _Int, class _Tp, long unsigned int _Nm> constexpr const _Tp& std::get(const std::array<_Tp, _Nm>&)'
351 | get(const array<_Tp, _Nm>& __arr) noexcept
| ^~~
/usr/include/c++/10/array:351:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::array<_Tp, _Nm>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/tuple:39,
from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/array:360:5: note: candidate: 'template<long unsigned int _Int, class _Tp, long unsigned int _Nm> constexpr const _Tp&& std::get(const std::array<_Tp, _Nm>&&)'
360 | get(const array<_Tp, _Nm>&& __arr) noexcept
| ^~~
/usr/include/c++/10/array:360:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::array<_Tp, _Nm>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/tuple:1294:5: note: candidate: 'template<long unsigned int __i, class ... _Elements> constexpr std::__tuple_element_t<__i, std::tuple<_UTypes ...> >& std::get(std::tuple<_UTypes ...>&)'
1294 | get(tuple<_Elements...>& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1294:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::tuple<_UTypes ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/tuple:1300:5: note: candidate: 'template<long unsigned int __i, class ... _Elements> constexpr std::__tuple_element_t<__i, std::tuple<_UTypes ...> >& std::get(const std::tuple<_UTypes ...>&)'
1300 | get(const tuple<_Elements...>& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1300:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::tuple<_UTypes ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/tuple:1306:5: note: candidate: 'template<long unsigned int __i, class ... _Elements> constexpr std::__tuple_element_t<__i, std::tuple<_UTypes ...> >&& std::get(std::tuple<_UTypes ...>&&)'
1306 | get(tuple<_Elements...>&& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1306:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::tuple<_UTypes ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/tuple:1315:5: note: candidate: 'template<long unsigned int __i, class ... _Elements> constexpr std::__tuple_element_t<__i, std::tuple<_UTypes ...> >&& std::get(const std::tuple<_UTypes ...>&&)'
1315 | get(const tuple<_Elements...>&& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1315:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::tuple<_UTypes ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from count_triplets.cpp:1:
/usr/include/c++/10/tuple:1338:5: note: candidate: 'template<class _Tp, class ... _Types> constexpr _Tp& std::get(std::tuple<_UTypes ...>&)'
1338 | get(tuple<_Types...>& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1338:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/tuple:1344:5: note: candidate: 'template<class _Tp, class ... _Types> constexpr _Tp&& std::get(std::tuple<_UTypes ...>&&)'
1344 | get(tuple<_Types...>&& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1344:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/tuple:1350:5: note: candidate: 'template<class _Tp, class ... _Types> constexpr const _Tp& std::get(const std::tuple<_UTypes ...>&)'
1350 | get(const tuple<_Types...>& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1350:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/tuple:1357:5: note: candidate: 'template<class _Tp, class ... _Types> constexpr const _Tp&& std::get(const std::tuple<_UTypes ...>&&)'
1357 | get(const tuple<_Types...>&& __t) noexcept
| ^~~
/usr/include/c++/10/tuple:1357:5: note: template argument deduction/substitution failed:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
from count_triplets.cpp:1:
/usr/include/c++/10/variant:1644:5: note: candidate: 'template<long unsigned int _Np, class ... _Types> constexpr std::variant_alternative_t<_Np, std::variant<_Types ...> >& std::get(std::variant<_Types ...>&)'
1644 | get(variant<_Types...>& __v)
| ^~~
/usr/include/c++/10/variant:1644:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::variant<_Types ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/variant:1655:5: note: candidate: 'template<long unsigned int _Np, class ... _Types> constexpr std::variant_alternative_t<_Np, std::variant<_Types ...> >&& std::get(std::variant<_Types ...>&&)'
1655 | get(variant<_Types...>&& __v)
| ^~~
/usr/include/c++/10/variant:1655:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'std::variant<_Types ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/variant:1666:5: note: candidate: 'template<long unsigned int _Np, class ... _Types> constexpr std::variant_alternative_t<_Np, std::variant<_Types ...> >& std::get(const std::variant<_Types ...>&)'
1666 | get(const variant<_Types...>& __v)
| ^~~
/usr/include/c++/10/variant:1666:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::variant<_Types ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/variant:1677:5: note: candidate: 'template<long unsigned int _Np, class ... _Types> constexpr std::variant_alternative_t<_Np, std::variant<_Types ...> >&& std::get(const std::variant<_Types ...>&&)'
1677 | get(const variant<_Types...>&& __v)
| ^~~
/usr/include/c++/10/variant:1677:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/variant:1706:22: note: mismatched types 'const std::variant<_Types ...>' and 'int'
1706 | decltype(std::get<0>(std::declval<_Variants>()))...>;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/variant:1071:20: note: candidate: 'template<class _Tp, class ... _Types> constexpr _Tp& std::get(std::variant<_Types ...>&)'
1071