| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 854958 | 2023-09-29T12:52:36 Z | thinknoexit | Traffic (IOI10_traffic) | C++17 | Compilation error |
0 ms | 0 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll INF = 1e18;
const int N = 1001000;
pair<ll, int> dp[2][N];
vector<int> adj[N];
int a[N], ans = -1;
ll mn = INF;
void dfs(int v, int p = -1) {
dp[0][i] = dp[1][i] = { 0, -1 };
for (auto& x : adj[v]) {
if (x == p) continue;
dfs(x, v);
pair<ll, int> now = { dp[0][x] + a[x], x };
dp[1][x] = max(dp[1][x], now);
if (dp[1][x] > dp[0][x]) swap(dp[1][x], dp[0][x]);
}
}
void dfs2(int v, int p = -1, ll w = 0) {
if (max(w, dp[0][v].first) < mn) {
mn = max(w, dp[0][v].first);
ans = v;
}
for (auto& x : adj[v]) {
if (x == p) continue;
if (dp[0][v].second == x) dfs2(x, v, dp[1][v].first + a[v]);
else dfs2(x, v, dp[0][v].first + a[v]);
}
}
int LocateCentre(int n, int p[], int s[], int d[]) {
for (int i = 0;i < n;i++) {
a[i] = p[i];
}
for (int i = 0;i < n - 1;i++) {
adj[s[i]].push_back(d[i]);
adj[d[i]].push_back(s[i]);
}
dfs(0);
dfs2(0);
return ans;
}
Compilation message
traffic.cpp: In function 'void dfs(int, int)':
traffic.cpp:11:11: error: 'i' was not declared in this scope
11 | dp[0][i] = dp[1][i] = { 0, -1 };
| ^
traffic.cpp:15:40: error: no match for 'operator+' (operand types are 'std::pair<long long int, int>' and 'int')
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ~~~~~~~~ ^ ~~~~
| | |
| | int
| std::pair<long long int, int>
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from traffic.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: candidate: 'template<class _Iterator> constexpr std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)'
508 | operator+(typename reverse_iterator<_Iterator>::difference_type __n,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from traffic.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: candidate: 'template<class _Iterator> constexpr std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)'
1540 | operator+(typename move_iterator<_Iterator>::difference_type __n,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6022:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6022 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6022:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:56,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
1160 | operator+(const _CharT* __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'const _CharT*' and 'std::pair<long long int, int>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:56,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(_CharT, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
1180 | operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Alloc>& __rhs)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6059:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
6059 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6059:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6075:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, _CharT)'
6075 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs)
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6075:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6087:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6087 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6087:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6093:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
6093 | operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6093:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6099:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
6099 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6099:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6121:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
6121 | operator+(const _CharT* __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6121:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'const _CharT*' and 'std::pair<long long int, int>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6127:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(_CharT, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
6127 | operator+(_CharT __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6127:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6133:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, const _CharT*)'
6133 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6133:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6139:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, _CharT)'
6139 | operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6139:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/complex:331:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const std::complex<_Tp>&, const std::complex<_Tp>&)'
331 | operator+(const complex<_Tp>& __x, const complex<_Tp>& __y)
| ^~~~~~~~
/usr/include/c++/10/complex:331:5: note: template argument deduction/substitution failed:
traffic.cpp:15:45: note: 'std::pair<long long int, int>' is not derived from 'const std::complex<_Tp>'
15 | pair<ll, int> now = { dp[0][x] + a[x], x };
| ^
In file included from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from traffic.cpp:1:
/usr/include/c++/10/complex:340:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const std::complex<_Tp>&, const _Tp&)'
340 | operator+(const complex<_Tp>& __x, const _Tp& __y)
| ^~~~~~~~
/usr/include/c++/10/complex:340:5: n