# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
521553 |
2022-02-02T11:39:40 Z |
Cyanmond |
Race (IOI11_race) |
C++17 |
|
350 ms |
85276 KB |
#line 1 "paper.cpp"
#include <bits/stdc++.h>
#line 3 "library2/utility/infty.hpp"
template <typename T, T Div = 2> constexpr T infty = std::numeric_limits<T>::max() / Div;
#line 3 "library2/utility/len.hpp"
template <class Container> int len(const Container&c){
return static_cast<int>(std::size(c));
}
#line 2 "library2/utility/rec_lambda.hpp"
template <class F> class RecursiveLambda {
F f;
public:
explicit constexpr RecursiveLambda(F &&f_) : f(std::forward<F>(f_)) {}
template <class... Args> constexpr auto operator()(Args &&...args) const {
return f(*this, std::forward<Args>(args)...);
}
};
template <class F> constexpr decltype(auto) rec_lambda(F &&f) {
return RecursiveLambda<F>(std::forward<F>(f));
}
#line 3 "library2/utility/rep.hpp"
class Range {
struct Iterator {
int itr;
constexpr Iterator(const int pos) noexcept : itr(pos) {}
constexpr void operator++() noexcept {
++itr;
}
constexpr bool operator!=(const Iterator &other) const noexcept {
return itr != other.itr;
}
constexpr int operator*() const noexcept {
return itr;
}
};
const Iterator first, last;
public:
explicit constexpr Range(const int f, const int l) noexcept
: first(f), last(std::max(f, l)) {}
constexpr Iterator begin() const noexcept {
return first;
}
constexpr Iterator end() const noexcept {
return last;
}
};
constexpr Range rep(const int l, const int r) noexcept {
return Range(l, r);
}
constexpr Range rep(const int n) noexcept {
return Range(0, n);
}
#line 2 "library2/utility/setmax.hpp"
template <typename T> bool setmax(T &lhs, const T &rhs) {
if (lhs < rhs) {
lhs = rhs;
return true;
}
return false;
}
#line 2 "library2/utility/setmin.hpp"
template <typename T> bool setmin(T& lhs, const T& rhs) {
if (lhs > rhs) {
lhs = rhs;
return true;
}
return false;
}
#line 9 "paper.cpp"
#include "race.h"
int N;
int K;
struct Edge {
int to;
int cost;
};
std::vector<std::vector<Edge>> Tree;
struct DpData {
std::map<int, int> d;
int adj;
int depth;
// real key : d.key + adj
// real value : depth - d.value
int size() const {
return len(d);
}
};
void merge(DpData &a, DpData &b) {
assert(a.size() >= b.size());
for (const auto &[key, value] : b.d) {
const int r = key + b.adj - a.adj;
if (a.d.find(r) == a.d.end()) {
a.d[r] = a.depth - (b.depth - value);
} else {
setmax(a.d[r], a.depth - (b.depth - value));
}
}
}
int calc_dp() {
int answer = infty<int>;
auto dfs = rec_lambda([&](auto &&f, const int v, const int p) -> DpData {
if (v != 0 and len(Tree[v]) == 1) {
DpData ret;
ret.adj = 0;
ret.depth = 0;
ret.d[0] = 0;
return ret;
}
const int c = len(Tree[v]);
std::vector<DpData> children(c);
auto collect = [&]() {
int count = 0;
for (const auto [to, cost] : Tree[v]) {
if (to == p) {
children[count].adj = -1;
} else {
children[count] = f(to, v);
children[count].adj += cost;
++children[count].depth;
}
++count;
}
int base = (int)(std::max_element(children.begin(), children.end(),
[](const DpData &a, const DpData &b) {
return a.size() < b.size();
}) -
children.begin());
return base;
};
int base = collect();
for (const int i : rep(c)) {
if (i == base) {
continue;
}
if (children[i].adj == -1) {
continue;
}
for (const auto &[key, value] : children[i].d) {
const int r = K - (key + children[i].adj + children[base].adj);
if (children[base].d.find(r) != children[base].d.end()) {
setmin(answer, (children[i].depth - value) +
(children[base].depth - children[base].d[r]));
}
}
merge(children[base], children[i]);
}
children[base].d[-children[base].adj] = children[base].depth;
const int r = K - children[base].adj;
if (children[base].d.find(r) != children[base].d.end()) {
setmin(answer, children[base].depth - children[base].d[r]);
}
return std::move(children[base]);
});
dfs(0, N);
return answer == infty<int> ? -1 : answer;
}
int best_path(int n, int k, int H[][2], int L[]) {
N = n;
K = k;
Tree.resize(N);
for (const int i : rep(N - 1)) {
Tree[H[i][0]].push_back({H[i][1], L[i]});
Tree[H[i][1]].push_back({H[i][0], L[i]});
}
return calc_dp();
}
/*
int main() {
int n, k;
std::cin >> n >> k;
int H[20][2];
int L[20];
for (const int i : rep(n - 1)) {
int a, b, l;
std::cin >> a >> b >> l;
H[i][0] = a, H[i][1] = b;
L[i] = l;
}
std::cout << best_path(n, k, H, L) << std::endl;
}
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
2 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
2 ms |
332 KB |
Output is correct |
34 |
Correct |
1 ms |
460 KB |
Output is correct |
35 |
Correct |
1 ms |
460 KB |
Output is correct |
36 |
Correct |
1 ms |
460 KB |
Output is correct |
37 |
Correct |
1 ms |
460 KB |
Output is correct |
38 |
Correct |
1 ms |
460 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
19 |
Correct |
81 ms |
7556 KB |
Output is correct |
20 |
Correct |
74 ms |
7548 KB |
Output is correct |
21 |
Correct |
73 ms |
7492 KB |
Output is correct |
22 |
Correct |
80 ms |
7668 KB |
Output is correct |
23 |
Correct |
102 ms |
7844 KB |
Output is correct |
24 |
Correct |
80 ms |
7740 KB |
Output is correct |
25 |
Correct |
76 ms |
25376 KB |
Output is correct |
26 |
Correct |
57 ms |
42716 KB |
Output is correct |
27 |
Correct |
159 ms |
22976 KB |
Output is correct |
28 |
Correct |
200 ms |
85276 KB |
Output is correct |
29 |
Correct |
207 ms |
81036 KB |
Output is correct |
30 |
Correct |
157 ms |
22908 KB |
Output is correct |
31 |
Correct |
154 ms |
22808 KB |
Output is correct |
32 |
Correct |
165 ms |
22980 KB |
Output is correct |
33 |
Correct |
154 ms |
17720 KB |
Output is correct |
34 |
Correct |
253 ms |
28020 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
0 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
0 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
2 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
2 ms |
332 KB |
Output is correct |
34 |
Correct |
1 ms |
460 KB |
Output is correct |
35 |
Correct |
1 ms |
460 KB |
Output is correct |
36 |
Correct |
1 ms |
460 KB |
Output is correct |
37 |
Correct |
1 ms |
460 KB |
Output is correct |
38 |
Correct |
1 ms |
460 KB |
Output is correct |
39 |
Correct |
81 ms |
7556 KB |
Output is correct |
40 |
Correct |
74 ms |
7548 KB |
Output is correct |
41 |
Correct |
73 ms |
7492 KB |
Output is correct |
42 |
Correct |
80 ms |
7668 KB |
Output is correct |
43 |
Correct |
102 ms |
7844 KB |
Output is correct |
44 |
Correct |
80 ms |
7740 KB |
Output is correct |
45 |
Correct |
76 ms |
25376 KB |
Output is correct |
46 |
Correct |
57 ms |
42716 KB |
Output is correct |
47 |
Correct |
159 ms |
22976 KB |
Output is correct |
48 |
Correct |
200 ms |
85276 KB |
Output is correct |
49 |
Correct |
207 ms |
81036 KB |
Output is correct |
50 |
Correct |
157 ms |
22908 KB |
Output is correct |
51 |
Correct |
154 ms |
22808 KB |
Output is correct |
52 |
Correct |
165 ms |
22980 KB |
Output is correct |
53 |
Correct |
154 ms |
17720 KB |
Output is correct |
54 |
Correct |
253 ms |
28020 KB |
Output is correct |
55 |
Correct |
12 ms |
1476 KB |
Output is correct |
56 |
Correct |
6 ms |
1076 KB |
Output is correct |
57 |
Correct |
49 ms |
9084 KB |
Output is correct |
58 |
Correct |
49 ms |
18976 KB |
Output is correct |
59 |
Correct |
72 ms |
42692 KB |
Output is correct |
60 |
Correct |
187 ms |
82528 KB |
Output is correct |
61 |
Correct |
179 ms |
25488 KB |
Output is correct |
62 |
Correct |
150 ms |
22820 KB |
Output is correct |
63 |
Correct |
218 ms |
22952 KB |
Output is correct |
64 |
Correct |
340 ms |
24656 KB |
Output is correct |
65 |
Correct |
350 ms |
28920 KB |
Output is correct |
66 |
Correct |
209 ms |
71244 KB |
Output is correct |
67 |
Correct |
135 ms |
38704 KB |
Output is correct |
68 |
Correct |
240 ms |
31400 KB |
Output is correct |
69 |
Correct |
244 ms |
31676 KB |
Output is correct |
70 |
Correct |
227 ms |
30148 KB |
Output is correct |