#include <bits/stdc++.h>
#define FOR(i,l,r) for(int i=(l); i<=(r); ++i)
#define REP(i,l,r) for(int i=(l); i<(r); ++i)
#define FORD(i,r,l) for(int i=(r); i>=(l); --i)
#define REPD(i,r,l) for(int i=(r)-1; i>=(l); --i)
#define pii pair<int, int>
using namespace std;
const int N = 1e5 + 5, Ns4 = 2005;
int n;
long long ans[N];
long long dpx[N], val[N];
int sz[Ns4];
long long dp[Ns4][Ns4], dd[Ns4][2];
vector<pii> S[N];
void sub1() {
sort(S[0].begin(), S[0].end());
REP(i, 0, n - 1) ans[n - i - 2] = ans[n - i - 1] + S[0][i].first;
}
void sub2() {
REP(i, 0, n - 1) {
for(auto [c, v] : S[i]) if (i + 1 == v)
val[i + 1] = c;
}
REP(i, 1, n) ans[0] += val[i];
REP(i, 2, n) {
dpx[i] = min(dpx[i - 1] + val[i], dpx[i - 2] + val[i - 1]);
}
ans[1] = dpx[n - 1];
}
void DFS(int u, int p, int max_sz) {
int now_sz = min(sz[u], max_sz);
vector<int> Q;
long long sum = 0, pre_sum = 0;
for(auto [c, v] : S[u]) if (v != p) {
DFS(v, u, max_sz);
long long xx = dd[v][1] + c;
long long yy = dd[v][0];
sum += xx;
Q.push_back(yy - xx);
}
sort(Q.begin(), Q.end());
pre_sum = 1e15;
REP(i, 0, now_sz) {
pre_sum = sum;
sum += min(0, Q[i]);
}
if (now_sz < max_sz) pre_sum = sum;
dd[u][0] = pre_sum;
dd[u][1] = sum;
}
void sub34() {
REP(i, 0, n) {
sz[i] = S[i].size() - 1;
if (i == 0) ++sz[i];
}
REP(i, 0, n) {
DFS(0, 0, i);
ans[i] = dd[0][1];
}
}
vector<long long> minimum_closure_costs(int N, vector<int> U, vector<int> V, vector<int> W) {
n = N;
REP(i, 0, n - 1) {
S[U[i]].emplace_back(W[i], V[i]);
S[V[i]].emplace_back(W[i], U[i]);
}
if (S[0].size() == n - 1) sub1();
else if (true) sub34();
else if (n > 2000) sub2();
else if (n <= 2000) sub34();
vector<long long> ret(n);
REP(i, 0, n) ret[i] = ans[i];
return ret;
}
Compilation message
roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:74:21: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
74 | if (S[0].size() == n - 1) sub1();
| ~~~~~~~~~~~~^~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
3 ms |
2772 KB |
Output is correct |
5 |
Correct |
1 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2772 KB |
Output is correct |
9 |
Correct |
3 ms |
2756 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
1 ms |
2644 KB |
Output is correct |
12 |
Correct |
34 ms |
7336 KB |
Output is correct |
13 |
Correct |
56 ms |
10480 KB |
Output is correct |
14 |
Correct |
53 ms |
9820 KB |
Output is correct |
15 |
Correct |
59 ms |
10608 KB |
Output is correct |
16 |
Correct |
59 ms |
10696 KB |
Output is correct |
17 |
Correct |
63 ms |
10700 KB |
Output is correct |
18 |
Correct |
1 ms |
2644 KB |
Output is correct |
19 |
Correct |
49 ms |
9688 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2644 KB |
Output is correct |
2 |
Execution timed out |
2074 ms |
19240 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2644 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
3 ms |
2644 KB |
Output is correct |
5 |
Correct |
4 ms |
2588 KB |
Output is correct |
6 |
Correct |
2 ms |
2660 KB |
Output is correct |
7 |
Correct |
3 ms |
2644 KB |
Output is correct |
8 |
Correct |
4 ms |
2644 KB |
Output is correct |
9 |
Correct |
4 ms |
2664 KB |
Output is correct |
10 |
Correct |
3 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2660 KB |
Output is correct |
12 |
Correct |
3 ms |
2644 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2644 KB |
Output is correct |
17 |
Correct |
3 ms |
2644 KB |
Output is correct |
18 |
Correct |
3 ms |
2644 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
2 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2664 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2644 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
3 ms |
2644 KB |
Output is correct |
5 |
Correct |
4 ms |
2588 KB |
Output is correct |
6 |
Correct |
2 ms |
2660 KB |
Output is correct |
7 |
Correct |
3 ms |
2644 KB |
Output is correct |
8 |
Correct |
4 ms |
2644 KB |
Output is correct |
9 |
Correct |
4 ms |
2664 KB |
Output is correct |
10 |
Correct |
3 ms |
2644 KB |
Output is correct |
11 |
Correct |
3 ms |
2660 KB |
Output is correct |
12 |
Correct |
3 ms |
2644 KB |
Output is correct |
13 |
Correct |
2 ms |
2644 KB |
Output is correct |
14 |
Correct |
2 ms |
2644 KB |
Output is correct |
15 |
Correct |
2 ms |
2644 KB |
Output is correct |
16 |
Correct |
2 ms |
2644 KB |
Output is correct |
17 |
Correct |
3 ms |
2644 KB |
Output is correct |
18 |
Correct |
3 ms |
2644 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
2 ms |
2644 KB |
Output is correct |
21 |
Correct |
2 ms |
2664 KB |
Output is correct |
22 |
Correct |
2 ms |
2644 KB |
Output is correct |
23 |
Correct |
88 ms |
2792 KB |
Output is correct |
24 |
Correct |
238 ms |
2868 KB |
Output is correct |
25 |
Correct |
175 ms |
2828 KB |
Output is correct |
26 |
Correct |
165 ms |
2860 KB |
Output is correct |
27 |
Correct |
147 ms |
2900 KB |
Output is correct |
28 |
Correct |
74 ms |
2884 KB |
Output is correct |
29 |
Correct |
190 ms |
2960 KB |
Output is correct |
30 |
Correct |
129 ms |
2884 KB |
Output is correct |
31 |
Correct |
120 ms |
2884 KB |
Output is correct |
32 |
Correct |
72 ms |
2888 KB |
Output is correct |
33 |
Correct |
103 ms |
3028 KB |
Output is correct |
34 |
Correct |
163 ms |
3220 KB |
Output is correct |
35 |
Correct |
110 ms |
3056 KB |
Output is correct |
36 |
Correct |
3 ms |
2772 KB |
Output is correct |
37 |
Correct |
3 ms |
2772 KB |
Output is correct |
38 |
Correct |
3 ms |
2772 KB |
Output is correct |
39 |
Correct |
2 ms |
2644 KB |
Output is correct |
40 |
Correct |
2 ms |
2664 KB |
Output is correct |
41 |
Correct |
3 ms |
2644 KB |
Output is correct |
42 |
Correct |
4 ms |
2644 KB |
Output is correct |
43 |
Correct |
4 ms |
2644 KB |
Output is correct |
44 |
Correct |
3 ms |
2644 KB |
Output is correct |
45 |
Correct |
4 ms |
2668 KB |
Output is correct |
46 |
Correct |
3 ms |
2644 KB |
Output is correct |
47 |
Correct |
3 ms |
2660 KB |
Output is correct |
48 |
Correct |
3 ms |
2664 KB |
Output is correct |
49 |
Correct |
3 ms |
2644 KB |
Output is correct |
50 |
Correct |
2 ms |
2644 KB |
Output is correct |
51 |
Correct |
3 ms |
2644 KB |
Output is correct |
52 |
Correct |
3 ms |
2644 KB |
Output is correct |
53 |
Correct |
149 ms |
2816 KB |
Output is correct |
54 |
Correct |
235 ms |
2860 KB |
Output is correct |
55 |
Correct |
107 ms |
2872 KB |
Output is correct |
56 |
Correct |
2 ms |
2772 KB |
Output is correct |
57 |
Correct |
3 ms |
2772 KB |
Output is correct |
58 |
Correct |
2 ms |
2644 KB |
Output is correct |
59 |
Correct |
4 ms |
2644 KB |
Output is correct |
60 |
Correct |
4 ms |
2644 KB |
Output is correct |
61 |
Correct |
2 ms |
2644 KB |
Output is correct |
62 |
Correct |
2 ms |
2644 KB |
Output is correct |
63 |
Correct |
2 ms |
2644 KB |
Output is correct |
64 |
Correct |
235 ms |
2972 KB |
Output is correct |
65 |
Correct |
228 ms |
2932 KB |
Output is correct |
66 |
Correct |
85 ms |
2900 KB |
Output is correct |
67 |
Correct |
71 ms |
2772 KB |
Output is correct |
68 |
Correct |
84 ms |
2864 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2075 ms |
10444 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2075 ms |
10444 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2772 KB |
Output is correct |
3 |
Correct |
2 ms |
2772 KB |
Output is correct |
4 |
Correct |
3 ms |
2772 KB |
Output is correct |
5 |
Correct |
1 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
2 ms |
2644 KB |
Output is correct |
8 |
Correct |
2 ms |
2772 KB |
Output is correct |
9 |
Correct |
3 ms |
2756 KB |
Output is correct |
10 |
Correct |
2 ms |
2644 KB |
Output is correct |
11 |
Correct |
1 ms |
2644 KB |
Output is correct |
12 |
Correct |
34 ms |
7336 KB |
Output is correct |
13 |
Correct |
56 ms |
10480 KB |
Output is correct |
14 |
Correct |
53 ms |
9820 KB |
Output is correct |
15 |
Correct |
59 ms |
10608 KB |
Output is correct |
16 |
Correct |
59 ms |
10696 KB |
Output is correct |
17 |
Correct |
63 ms |
10700 KB |
Output is correct |
18 |
Correct |
1 ms |
2644 KB |
Output is correct |
19 |
Correct |
49 ms |
9688 KB |
Output is correct |
20 |
Correct |
1 ms |
2644 KB |
Output is correct |
21 |
Execution timed out |
2074 ms |
19240 KB |
Time limit exceeded |
22 |
Halted |
0 ms |
0 KB |
- |