| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 412701 | LastRonin | Beads and wires (APIO14_beads) | C++14 | 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>
#define speed ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define ll long long
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define pill pair<ll, ll>
using namespace std;
const ll N = 1e4 + 10;
const ll big = 1e18;
ll n;
vector<pill> g[N];
int dp[N][2], dp2[2][3], dp3[2][2];
int dfs(ll v, ll p, ll z) {
dp[v][0] = dp[v][1] = 0;
for(auto u : g[v]) {
if(u.f != p)
dfs(u.f, v, u.s);
}
dp2[0][0] = 0, dp2[0][1] = -big, dp2[0][2] = -big;
for(auto u : g[v]) {
if(u.f == p)continue;
dp2[1][0] = dp2[0][0] + max(dp[u.f][0], dp[u.f][1]);
dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
dp2[0][0] = dp2[1][0];
dp2[0][1] = dp2[1][1];
dp2[0][2] = dp2[1][2];
}
dp[v][0] = dp2[0][0];
dp[v][1] = dp2[0][1] + z;
return dp2[0][2];
}
int main() {
speed;
cin >> n;
for(int i = 1, a, b, c; i < n; i++)
cin >> a >> b >> c, g[a].pb(mp(b, c)), g[b].pb(mp(a, c));
ll ans = 0;
for(int i = 1; i <= n; i++)
ans = max(ans, dfs(i, 0, 0));
cout << ans;
}
/*
10
5 6 9
2 3 5
1 10 8
4 5 9
2 7 8
5 7 10
6 9 4
2 8 9
1 7 5
10
4 10 2
1 2 21
1 3 13
6 7 1
7 9 5
2 4 3
2 5 8
1 6 55
6 8 34
*/
Compilation message (stderr)
beads.cpp: In function 'int dfs(long long int, long long int, long long int)':
beads.cpp:23:29: warning: overflow in conversion from 'long long int' to 'int' changes value from '-1000000000000000000' to '1486618624' [-Woverflow]
23 | dp2[0][0] = 0, dp2[0][1] = -big, dp2[0][2] = -big;
| ^~~~
beads.cpp:23:47: warning: overflow in conversion from 'long long int' to 'int' changes value from '-1000000000000000000' to '1486618624' [-Woverflow]
23 | dp2[0][0] = 0, dp2[0][1] = -big, dp2[0][2] = -big;
| ^~~~
beads.cpp:27:88: error: no matching function for call to 'max(int, long long int)'
27 | dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
beads.cpp:27:88: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
27 | dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
beads.cpp:27:88: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
27 | dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
3480 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: template argument deduction/substitution failed:
beads.cpp:27:88: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
27 | dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
3486 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: template argument deduction/substitution failed:
beads.cpp:27:88: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
27 | dp2[1][1] = max(dp2[0][1] + max(dp[u.f][0], dp[u.f][1]), dp2[0][0] + dp[u.f][0] + u.s);
| ^
beads.cpp:28:88: error: no matching function for call to 'max(int, long long int)'
28 | dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
beads.cpp:28:88: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
28 | dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
beads.cpp:28:88: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
28 | dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
3480 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: template argument deduction/substitution failed:
beads.cpp:28:88: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
28 | dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
3486 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: template argument deduction/substitution failed:
beads.cpp:28:88: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
28 | dp2[1][2] = max(dp2[0][2] + max(dp[u.f][0], dp[u.f][1]), dp2[0][1] + dp[u.f][0] + u.s);
| ^
beads.cpp: In function 'int main()':
beads.cpp:45:30: error: no matching function for call to 'max(long long int&, int)'
45 | ans = max(ans, dfs(i, 0, 0));
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
beads.cpp:45:30: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
45 | ans = max(ans, dfs(i, 0, 0));
| ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
from /usr/include/c++/10/ios:40,
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 beads.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
beads.cpp:45:30: note: deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
45 | ans = max(ans, dfs(i, 0, 0));
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
3480 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: template argument deduction/substitution failed:
beads.cpp:45:30: note: mismatched types 'std::initializer_list<_Tp>' and 'long long int'
45 | ans = max(ans, dfs(i, 0, 0));
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from beads.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
3486 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: template argument deduction/substitution failed:
beads.cpp:45:30: note: mismatched types 'std::initializer_list<_Tp>' and 'long long int'
45 | ans = max(ans, dfs(i, 0, 0));
| ^