| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 62073 |
2018-07-27T11:54:13 Z |
aome |
Race (IOI11_race) |
C++17 |
|
1357 ms |
85548 KB |
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
const int M = 1000005;
const int INF = 0x3f3f3f3f;
int K;
int res = INF;
int sz[N], h[N];
int f[M];
long long d[N];
bool del[N];
vector<int> buf;
vector< pair<int, int> > G[N];
void add(int u, int v, int w) {
G[u].push_back({v, w});
G[v].push_back({u, w});
}
void dfs(int u, int p) {
sz[u] = 1;
buf.push_back(u);
for (auto v : G[u]) {
if (p == v.first || del[v.first]) continue;
dfs(v.first, u), sz[u] += sz[v.first];
}
}
int find(int u, int p, int r) {
for (auto v : G[u]) {
if (p == v.first || del[v.first]) continue;
if (2 * sz[v.first] >= sz[r]) return find(v.first, u, r);
}
return u;
}
void query(int u, int p) {
if (d[u] <= K) res = min(res, h[u] + f[K - d[u]]);
for (auto v : G[u]) {
if (p == v.first || del[v.first]) continue;
h[v.first] = h[u] + 1, d[v.first] = d[u] + v.second;
query(v.first, u);
}
}
void add(int u, int p) {
if (d[u] <= K) f[d[u]] = min(f[d[u]], h[u]);
for (auto v : G[u]) {
if (p == v.first || del[v.first]) continue;
add(v.first, u);
}
}
void solve(int u) {
buf.clear(), dfs(u, u);
u = find(u, u, u), del[u] = 1;
d[u] = h[u] = f[0] = 0;
for (auto v : G[u]) {
if (del[v.first]) continue;
d[v.first] = v.second, h[v.first] = 1;
query(v.first, u), add(v.first, u);
}
for (auto i : buf) {
if (d[i] <= K) f[d[i]] = INF;
}
for (auto v : G[u]) {
if (del[v.first]) continue; solve(v.first);
}
}
int best_path(int n, int _K, int H[][2], int L[]) {
K = _K;
for (int i = 0; i < (n - 1); ++i) {
add(H[i][0], H[i][1], L[i]);
}
memset(f, INF, sizeof f);
solve(0);
return res == INF ? -1 : res;
}
Compilation message
race.cpp: In function 'void solve(int)':
race.cpp:72:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (del[v.first]) continue; solve(v.first);
^~
race.cpp:72:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
if (del[v.first]) continue; solve(v.first);
^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
8952 KB |
Output is correct |
| 2 |
Correct |
11 ms |
9060 KB |
Output is correct |
| 3 |
Correct |
9 ms |
9060 KB |
Output is correct |
| 4 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 5 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 6 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 7 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 8 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 9 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 10 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 11 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 12 |
Correct |
11 ms |
9272 KB |
Output is correct |
| 13 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 14 |
Correct |
14 ms |
9272 KB |
Output is correct |
| 15 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 16 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 17 |
Correct |
12 ms |
9272 KB |
Output is correct |
| 18 |
Correct |
10 ms |
9272 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
8952 KB |
Output is correct |
| 2 |
Correct |
11 ms |
9060 KB |
Output is correct |
| 3 |
Correct |
9 ms |
9060 KB |
Output is correct |
| 4 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 5 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 6 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 7 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 8 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 9 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 10 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 11 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 12 |
Correct |
11 ms |
9272 KB |
Output is correct |
| 13 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 14 |
Correct |
14 ms |
9272 KB |
Output is correct |
| 15 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 16 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 17 |
Correct |
12 ms |
9272 KB |
Output is correct |
| 18 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 19 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 20 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 21 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 22 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 23 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 24 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 25 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 26 |
Correct |
10 ms |
9296 KB |
Output is correct |
| 27 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 28 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 29 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 30 |
Correct |
15 ms |
9324 KB |
Output is correct |
| 31 |
Correct |
12 ms |
9324 KB |
Output is correct |
| 32 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 33 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 34 |
Correct |
12 ms |
9324 KB |
Output is correct |
| 35 |
Correct |
11 ms |
9324 KB |
Output is correct |
| 36 |
Correct |
12 ms |
9328 KB |
Output is correct |
| 37 |
Correct |
12 ms |
9328 KB |
Output is correct |
| 38 |
Correct |
11 ms |
9328 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
8952 KB |
Output is correct |
| 2 |
Correct |
11 ms |
9060 KB |
Output is correct |
| 3 |
Correct |
9 ms |
9060 KB |
Output is correct |
| 4 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 5 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 6 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 7 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 8 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 9 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 10 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 11 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 12 |
Correct |
11 ms |
9272 KB |
Output is correct |
| 13 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 14 |
Correct |
14 ms |
9272 KB |
Output is correct |
| 15 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 16 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 17 |
Correct |
12 ms |
9272 KB |
Output is correct |
| 18 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 19 |
Correct |
383 ms |
16232 KB |
Output is correct |
| 20 |
Correct |
409 ms |
16232 KB |
Output is correct |
| 21 |
Correct |
409 ms |
16232 KB |
Output is correct |
| 22 |
Correct |
241 ms |
16356 KB |
Output is correct |
| 23 |
Correct |
317 ms |
16476 KB |
Output is correct |
| 24 |
Correct |
159 ms |
16476 KB |
Output is correct |
| 25 |
Correct |
442 ms |
19048 KB |
Output is correct |
| 26 |
Correct |
123 ms |
21992 KB |
Output is correct |
| 27 |
Correct |
318 ms |
23268 KB |
Output is correct |
| 28 |
Correct |
1219 ms |
37884 KB |
Output is correct |
| 29 |
Correct |
1004 ms |
39988 KB |
Output is correct |
| 30 |
Correct |
330 ms |
39988 KB |
Output is correct |
| 31 |
Correct |
353 ms |
39988 KB |
Output is correct |
| 32 |
Correct |
532 ms |
39988 KB |
Output is correct |
| 33 |
Correct |
851 ms |
40388 KB |
Output is correct |
| 34 |
Correct |
779 ms |
44084 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
8952 KB |
Output is correct |
| 2 |
Correct |
11 ms |
9060 KB |
Output is correct |
| 3 |
Correct |
9 ms |
9060 KB |
Output is correct |
| 4 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 5 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 6 |
Correct |
13 ms |
9172 KB |
Output is correct |
| 7 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 8 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 9 |
Correct |
11 ms |
9172 KB |
Output is correct |
| 10 |
Correct |
10 ms |
9172 KB |
Output is correct |
| 11 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 12 |
Correct |
11 ms |
9272 KB |
Output is correct |
| 13 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 14 |
Correct |
14 ms |
9272 KB |
Output is correct |
| 15 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 16 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 17 |
Correct |
12 ms |
9272 KB |
Output is correct |
| 18 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 19 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 20 |
Correct |
10 ms |
9272 KB |
Output is correct |
| 21 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 22 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 23 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 24 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 25 |
Correct |
11 ms |
9296 KB |
Output is correct |
| 26 |
Correct |
10 ms |
9296 KB |
Output is correct |
| 27 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 28 |
Correct |
12 ms |
9296 KB |
Output is correct |
| 29 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 30 |
Correct |
15 ms |
9324 KB |
Output is correct |
| 31 |
Correct |
12 ms |
9324 KB |
Output is correct |
| 32 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 33 |
Correct |
13 ms |
9324 KB |
Output is correct |
| 34 |
Correct |
12 ms |
9324 KB |
Output is correct |
| 35 |
Correct |
11 ms |
9324 KB |
Output is correct |
| 36 |
Correct |
12 ms |
9328 KB |
Output is correct |
| 37 |
Correct |
12 ms |
9328 KB |
Output is correct |
| 38 |
Correct |
11 ms |
9328 KB |
Output is correct |
| 39 |
Correct |
383 ms |
16232 KB |
Output is correct |
| 40 |
Correct |
409 ms |
16232 KB |
Output is correct |
| 41 |
Correct |
409 ms |
16232 KB |
Output is correct |
| 42 |
Correct |
241 ms |
16356 KB |
Output is correct |
| 43 |
Correct |
317 ms |
16476 KB |
Output is correct |
| 44 |
Correct |
159 ms |
16476 KB |
Output is correct |
| 45 |
Correct |
442 ms |
19048 KB |
Output is correct |
| 46 |
Correct |
123 ms |
21992 KB |
Output is correct |
| 47 |
Correct |
318 ms |
23268 KB |
Output is correct |
| 48 |
Correct |
1219 ms |
37884 KB |
Output is correct |
| 49 |
Correct |
1004 ms |
39988 KB |
Output is correct |
| 50 |
Correct |
330 ms |
39988 KB |
Output is correct |
| 51 |
Correct |
353 ms |
39988 KB |
Output is correct |
| 52 |
Correct |
532 ms |
39988 KB |
Output is correct |
| 53 |
Correct |
851 ms |
40388 KB |
Output is correct |
| 54 |
Correct |
779 ms |
44084 KB |
Output is correct |
| 55 |
Correct |
25 ms |
44084 KB |
Output is correct |
| 56 |
Correct |
26 ms |
44084 KB |
Output is correct |
| 57 |
Correct |
166 ms |
44084 KB |
Output is correct |
| 58 |
Correct |
68 ms |
44084 KB |
Output is correct |
| 59 |
Correct |
154 ms |
47860 KB |
Output is correct |
| 60 |
Correct |
1191 ms |
62796 KB |
Output is correct |
| 61 |
Correct |
334 ms |
62796 KB |
Output is correct |
| 62 |
Correct |
341 ms |
62796 KB |
Output is correct |
| 63 |
Correct |
445 ms |
62796 KB |
Output is correct |
| 64 |
Correct |
1057 ms |
64548 KB |
Output is correct |
| 65 |
Correct |
807 ms |
68556 KB |
Output is correct |
| 66 |
Correct |
1357 ms |
80092 KB |
Output is correct |
| 67 |
Correct |
330 ms |
80092 KB |
Output is correct |
| 68 |
Correct |
496 ms |
80092 KB |
Output is correct |
| 69 |
Correct |
637 ms |
82760 KB |
Output is correct |
| 70 |
Correct |
542 ms |
85548 KB |
Output is correct |
