#include "roads.h"
#include <iostream>
#include <vector>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_map>
#include <cmath>
#include <climits>
#include <algorithm>
#include <random>
#include <queue>
#include <deque>
#include <iomanip>
#include <string>
#include <tuple>
#include <bitset>
#include <chrono>
#include <ctime>
#include <fstream>
#include <stack>
#include <cstdio>
using namespace std;
using ll = long long;
vector<vector<pair<int, int>>> gp;
vector<vector<ll>> dp;
vector<ll> linear_w;
void dfs(int u, int p, int k) {
vector<ll> vec;
dp[u][0] = 0;
for (pair<int, int>& v : gp[u]) {
if (v.first == p) continue;
dfs(v.first, u, k);
dp[u][0] += dp[v.first][k];
vec.push_back(dp[v.first][k - 1] + v.second - dp[v.first][k]);
}
sort(vec.rbegin(), vec.rend());
int lsti = 0;
for (int i = 1, j = 0; i <= k && j < vec.size(); ++i, ++j) {
dp[u][i] = dp[u][i - 1];
dp[u][i] += max(0ll, vec[j]);
lsti = i;
}
if (lsti < k) dp[u][k] = dp[u][lsti];
if (lsti < k - 1) dp[u][k - 1] = dp[u][lsti];
}
void to_line(int u, int p) {
for (pair<int, int>& v : gp[u]) {
if (v.first == p) continue;
linear_w.push_back(v.second);
to_line(v.first, u);
}
}
vector<ll> minimum_closure_costs(int n, vector<int> U, vector<int> V, vector<int> W) {
gp = vector<vector<pair<int, int>>>(n);
ll sm = 0;
bool f = 1;
for (int i = 0; i < U.size(); ++i) {
gp[U[i]].push_back({ V[i], W[i] });
gp[V[i]].push_back({ U[i], W[i] });
if (U[i]) f = 0;
sm += W[i];
}
vector<ll> vec(n);
if (f) {
sort(W.rbegin(), W.rend());
ll cur = 0;
for (int i = 0; i < n; ++i) {
//cout << sm - cur << " ";
vec[i] = sm - cur;
if(i < n - 1) cur += W[i];
}
return vec;
}
if (n > 2000) {
int node = 0;
for (int i = 0; i < n; ++i) if (gp[i].size() == 1) node = i;
to_line(node, node);
vector<ll> DP(n - 1);
DP[0] = linear_w[0];
if (n > 2) DP[1] = linear_w[1];
if (n > 3) DP[2] = linear_w[0] + linear_w[2];
for(int i = 3; i < n - 1; ++i){
DP[i] = max(DP[i - 3] + linear_w[i], DP[i - 2] + linear_w[i]);
}
for (int i = 0; i < n - 1; ++i) DP[n - 2] = max(DP[n - 2], DP[i]);
vec[0] = sm;
vec[1] = sm - DP[n - 2];
return vec;
}
vec[0] = sm;
dp = vector<vector<ll>>(n, vector<ll>(n));
for (int i = 1; i < n; ++i) {
dfs(0, 0, i);
vec[i] = sm - dp[0][i];
}
return vec;
}
Compilation message
roads.cpp: In function 'void dfs(int, int, int)':
roads.cpp:41:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for (int i = 1, j = 0; i <= k && j < vec.size(); ++i, ++j) {
| ~~^~~~~~~~~~~~
roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:62:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
62 | for (int i = 0; i < U.size(); ++i) {
| ~~^~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
2 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
33 ms |
5860 KB |
Output is correct |
13 |
Correct |
50 ms |
9660 KB |
Output is correct |
14 |
Correct |
50 ms |
8860 KB |
Output is correct |
15 |
Correct |
55 ms |
9716 KB |
Output is correct |
16 |
Correct |
55 ms |
9896 KB |
Output is correct |
17 |
Correct |
52 ms |
9896 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
45 ms |
8784 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
52 ms |
14068 KB |
Output is correct |
3 |
Correct |
50 ms |
17760 KB |
Output is correct |
4 |
Correct |
52 ms |
18996 KB |
Output is correct |
5 |
Correct |
55 ms |
19020 KB |
Output is correct |
6 |
Correct |
223 ms |
24276 KB |
Output is correct |
7 |
Correct |
320 ms |
32156 KB |
Output is correct |
8 |
Correct |
250 ms |
26176 KB |
Output is correct |
9 |
Correct |
3 ms |
556 KB |
Output is correct |
10 |
Correct |
4 ms |
596 KB |
Output is correct |
11 |
Correct |
3 ms |
596 KB |
Output is correct |
12 |
Correct |
36 ms |
11016 KB |
Output is correct |
13 |
Correct |
54 ms |
18120 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
44 ms |
16416 KB |
Output is correct |
16 |
Correct |
48 ms |
18096 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
2 ms |
468 KB |
Output is correct |
5 |
Correct |
3 ms |
596 KB |
Output is correct |
6 |
Correct |
2 ms |
596 KB |
Output is correct |
7 |
Correct |
3 ms |
468 KB |
Output is correct |
8 |
Correct |
3 ms |
596 KB |
Output is correct |
9 |
Correct |
3 ms |
596 KB |
Output is correct |
10 |
Correct |
2 ms |
468 KB |
Output is correct |
11 |
Correct |
4 ms |
640 KB |
Output is correct |
12 |
Correct |
3 ms |
612 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
3 ms |
596 KB |
Output is correct |
18 |
Correct |
3 ms |
596 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
2 ms |
468 KB |
Output is correct |
5 |
Correct |
3 ms |
596 KB |
Output is correct |
6 |
Correct |
2 ms |
596 KB |
Output is correct |
7 |
Correct |
3 ms |
468 KB |
Output is correct |
8 |
Correct |
3 ms |
596 KB |
Output is correct |
9 |
Correct |
3 ms |
596 KB |
Output is correct |
10 |
Correct |
2 ms |
468 KB |
Output is correct |
11 |
Correct |
4 ms |
640 KB |
Output is correct |
12 |
Correct |
3 ms |
612 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
3 ms |
596 KB |
Output is correct |
18 |
Correct |
3 ms |
596 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
126 ms |
12196 KB |
Output is correct |
24 |
Correct |
369 ms |
31884 KB |
Output is correct |
25 |
Correct |
258 ms |
23360 KB |
Output is correct |
26 |
Correct |
284 ms |
31872 KB |
Output is correct |
27 |
Correct |
256 ms |
31828 KB |
Output is correct |
28 |
Correct |
184 ms |
31800 KB |
Output is correct |
29 |
Correct |
290 ms |
26964 KB |
Output is correct |
30 |
Correct |
264 ms |
31880 KB |
Output is correct |
31 |
Correct |
242 ms |
31880 KB |
Output is correct |
32 |
Correct |
202 ms |
31868 KB |
Output is correct |
33 |
Correct |
204 ms |
24148 KB |
Output is correct |
34 |
Correct |
285 ms |
32148 KB |
Output is correct |
35 |
Correct |
229 ms |
26144 KB |
Output is correct |
36 |
Correct |
1 ms |
468 KB |
Output is correct |
37 |
Correct |
1 ms |
468 KB |
Output is correct |
38 |
Correct |
2 ms |
468 KB |
Output is correct |
39 |
Correct |
0 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
212 KB |
Output is correct |
41 |
Correct |
2 ms |
468 KB |
Output is correct |
42 |
Correct |
3 ms |
596 KB |
Output is correct |
43 |
Correct |
2 ms |
596 KB |
Output is correct |
44 |
Correct |
3 ms |
468 KB |
Output is correct |
45 |
Correct |
3 ms |
596 KB |
Output is correct |
46 |
Correct |
3 ms |
596 KB |
Output is correct |
47 |
Correct |
2 ms |
468 KB |
Output is correct |
48 |
Correct |
2 ms |
596 KB |
Output is correct |
49 |
Correct |
3 ms |
596 KB |
Output is correct |
50 |
Correct |
0 ms |
212 KB |
Output is correct |
51 |
Correct |
0 ms |
212 KB |
Output is correct |
52 |
Correct |
1 ms |
212 KB |
Output is correct |
53 |
Correct |
209 ms |
19224 KB |
Output is correct |
54 |
Correct |
371 ms |
31896 KB |
Output is correct |
55 |
Correct |
234 ms |
31896 KB |
Output is correct |
56 |
Correct |
1 ms |
468 KB |
Output is correct |
57 |
Correct |
1 ms |
468 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
3 ms |
596 KB |
Output is correct |
60 |
Correct |
3 ms |
596 KB |
Output is correct |
61 |
Correct |
1 ms |
212 KB |
Output is correct |
62 |
Correct |
0 ms |
212 KB |
Output is correct |
63 |
Correct |
0 ms |
212 KB |
Output is correct |
64 |
Correct |
352 ms |
30940 KB |
Output is correct |
65 |
Correct |
366 ms |
31876 KB |
Output is correct |
66 |
Correct |
206 ms |
31876 KB |
Output is correct |
67 |
Correct |
176 ms |
31828 KB |
Output is correct |
68 |
Correct |
222 ms |
31880 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
75 ms |
10716 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
75 ms |
10716 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
2 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
33 ms |
5860 KB |
Output is correct |
13 |
Correct |
50 ms |
9660 KB |
Output is correct |
14 |
Correct |
50 ms |
8860 KB |
Output is correct |
15 |
Correct |
55 ms |
9716 KB |
Output is correct |
16 |
Correct |
55 ms |
9896 KB |
Output is correct |
17 |
Correct |
52 ms |
9896 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
45 ms |
8784 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
52 ms |
14068 KB |
Output is correct |
22 |
Correct |
50 ms |
17760 KB |
Output is correct |
23 |
Correct |
52 ms |
18996 KB |
Output is correct |
24 |
Correct |
55 ms |
19020 KB |
Output is correct |
25 |
Correct |
223 ms |
24276 KB |
Output is correct |
26 |
Correct |
320 ms |
32156 KB |
Output is correct |
27 |
Correct |
250 ms |
26176 KB |
Output is correct |
28 |
Correct |
3 ms |
556 KB |
Output is correct |
29 |
Correct |
4 ms |
596 KB |
Output is correct |
30 |
Correct |
3 ms |
596 KB |
Output is correct |
31 |
Correct |
36 ms |
11016 KB |
Output is correct |
32 |
Correct |
54 ms |
18120 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
44 ms |
16416 KB |
Output is correct |
35 |
Correct |
48 ms |
18096 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
2 ms |
468 KB |
Output is correct |
40 |
Correct |
3 ms |
596 KB |
Output is correct |
41 |
Correct |
2 ms |
596 KB |
Output is correct |
42 |
Correct |
3 ms |
468 KB |
Output is correct |
43 |
Correct |
3 ms |
596 KB |
Output is correct |
44 |
Correct |
3 ms |
596 KB |
Output is correct |
45 |
Correct |
2 ms |
468 KB |
Output is correct |
46 |
Correct |
4 ms |
640 KB |
Output is correct |
47 |
Correct |
3 ms |
612 KB |
Output is correct |
48 |
Correct |
1 ms |
212 KB |
Output is correct |
49 |
Correct |
0 ms |
212 KB |
Output is correct |
50 |
Correct |
1 ms |
212 KB |
Output is correct |
51 |
Correct |
1 ms |
340 KB |
Output is correct |
52 |
Correct |
3 ms |
596 KB |
Output is correct |
53 |
Correct |
3 ms |
596 KB |
Output is correct |
54 |
Correct |
0 ms |
212 KB |
Output is correct |
55 |
Correct |
0 ms |
212 KB |
Output is correct |
56 |
Correct |
1 ms |
212 KB |
Output is correct |
57 |
Correct |
0 ms |
212 KB |
Output is correct |
58 |
Correct |
126 ms |
12196 KB |
Output is correct |
59 |
Correct |
369 ms |
31884 KB |
Output is correct |
60 |
Correct |
258 ms |
23360 KB |
Output is correct |
61 |
Correct |
284 ms |
31872 KB |
Output is correct |
62 |
Correct |
256 ms |
31828 KB |
Output is correct |
63 |
Correct |
184 ms |
31800 KB |
Output is correct |
64 |
Correct |
290 ms |
26964 KB |
Output is correct |
65 |
Correct |
264 ms |
31880 KB |
Output is correct |
66 |
Correct |
242 ms |
31880 KB |
Output is correct |
67 |
Correct |
202 ms |
31868 KB |
Output is correct |
68 |
Correct |
204 ms |
24148 KB |
Output is correct |
69 |
Correct |
285 ms |
32148 KB |
Output is correct |
70 |
Correct |
229 ms |
26144 KB |
Output is correct |
71 |
Correct |
1 ms |
468 KB |
Output is correct |
72 |
Correct |
1 ms |
468 KB |
Output is correct |
73 |
Correct |
2 ms |
468 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
0 ms |
212 KB |
Output is correct |
76 |
Correct |
2 ms |
468 KB |
Output is correct |
77 |
Correct |
3 ms |
596 KB |
Output is correct |
78 |
Correct |
2 ms |
596 KB |
Output is correct |
79 |
Correct |
3 ms |
468 KB |
Output is correct |
80 |
Correct |
3 ms |
596 KB |
Output is correct |
81 |
Correct |
3 ms |
596 KB |
Output is correct |
82 |
Correct |
2 ms |
468 KB |
Output is correct |
83 |
Correct |
2 ms |
596 KB |
Output is correct |
84 |
Correct |
3 ms |
596 KB |
Output is correct |
85 |
Correct |
0 ms |
212 KB |
Output is correct |
86 |
Correct |
0 ms |
212 KB |
Output is correct |
87 |
Correct |
1 ms |
212 KB |
Output is correct |
88 |
Correct |
209 ms |
19224 KB |
Output is correct |
89 |
Correct |
371 ms |
31896 KB |
Output is correct |
90 |
Correct |
234 ms |
31896 KB |
Output is correct |
91 |
Correct |
1 ms |
468 KB |
Output is correct |
92 |
Correct |
1 ms |
468 KB |
Output is correct |
93 |
Correct |
1 ms |
340 KB |
Output is correct |
94 |
Correct |
3 ms |
596 KB |
Output is correct |
95 |
Correct |
3 ms |
596 KB |
Output is correct |
96 |
Correct |
1 ms |
212 KB |
Output is correct |
97 |
Correct |
0 ms |
212 KB |
Output is correct |
98 |
Correct |
0 ms |
212 KB |
Output is correct |
99 |
Correct |
352 ms |
30940 KB |
Output is correct |
100 |
Correct |
366 ms |
31876 KB |
Output is correct |
101 |
Correct |
206 ms |
31876 KB |
Output is correct |
102 |
Correct |
176 ms |
31828 KB |
Output is correct |
103 |
Correct |
222 ms |
31880 KB |
Output is correct |
104 |
Incorrect |
75 ms |
10716 KB |
Output isn't correct |
105 |
Halted |
0 ms |
0 KB |
- |