# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
1026181 |
2024-07-17T16:47:20 Z |
vanea |
Race (IOI11_race) |
C++14 |
|
253 ms |
40420 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int mxN = 2e5+10;
const int mxK = 1e6+10;
const int INF = 1e9+10;
vector<array<int, 2>> adj[mxN];
int bk = 0, k, ans = INF;
int sz[mxN], d[mxK], last[mxK];
bool vis[mxN];
void get_sz(int node, int p) {
sz[node] = 1;
for(auto [it, w] : adj[node]) {
if(it == p || vis[it]) continue;
get_sz(it, node);
sz[node] += sz[it];
}
}
int get_c(int node, int p, int n) {
for(auto [it, w] : adj[node]) {
if(vis[it] || it == p) continue;
if(sz[it] * 2 > n) return get_c(it, node, n);
}
return node;
}
void get_dist(int node, int p, bool filling, int dist, int s) {
if(s > k) return;
if(filling) {
if(last[s] != bk) {
d[s] = dist;
last[s] = bk;
}
else {
d[s] = min(d[s], dist);
}
}
else {
if(last[k-s] == bk) {
ans = min(ans, dist+d[k-s]);
}
}
for(auto [it, w] : adj[node]) {
if(it == p || vis[it]) continue;
get_dist(it, node, filling, dist+1, s+w);
}
}
void build(int node) {
get_sz(node, -1);
int c = get_c(node, -1, sz[node]);
vis[c] = true;
++bk;
last[0] = bk;
for(auto [it, w] : adj[c]) {
if(vis[it]) continue;
get_dist(it, c, 0, 1, w);
get_dist(it, c, 1, 1, w);
}
for(auto [it, w] : adj[c]) {
if(vis[it]) continue;
build(it);
}
}
int best_path(int n, int K, int h[][2], int l[]) {
for(int i = 0; i < n-1; i++) {
adj[h[i][0]].push_back({h[i][1], l[i]});
adj[h[i][1]].push_back({h[i][0], l[i]});
}
k = K;
build(0);
return (ans == INF ? -1 : ans);
}
/*
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout << best_path(11, 12, {{0, 1}, {0, 2}, {2, 3}, {3, 4}, {4, 5}, {0, 6},
{6, 7}, {6, 8}, {8, 9}, {8, 10}},
{3, 4, 5, 4, 6, 3, 2, 5, 6, 7});
}*/
Compilation message
race.cpp: In function 'void get_sz(int, int)':
race.cpp:16:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
16 | for(auto [it, w] : adj[node]) {
| ^
race.cpp: In function 'int get_c(int, int, int)':
race.cpp:24:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
24 | for(auto [it, w] : adj[node]) {
| ^
race.cpp: In function 'void get_dist(int, int, bool, int, int)':
race.cpp:47:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
47 | for(auto [it, w] : adj[node]) {
| ^
race.cpp: In function 'void build(int)':
race.cpp:59:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
59 | for(auto [it, w] : adj[c]) {
| ^
race.cpp:64:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
64 | for(auto [it, w] : adj[c]) {
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
11352 KB |
Output is correct |
2 |
Correct |
2 ms |
13404 KB |
Output is correct |
3 |
Correct |
2 ms |
13404 KB |
Output is correct |
4 |
Correct |
2 ms |
11356 KB |
Output is correct |
5 |
Correct |
2 ms |
11356 KB |
Output is correct |
6 |
Correct |
3 ms |
13492 KB |
Output is correct |
7 |
Correct |
2 ms |
13404 KB |
Output is correct |
8 |
Correct |
2 ms |
13404 KB |
Output is correct |
9 |
Correct |
1 ms |
11440 KB |
Output is correct |
10 |
Correct |
2 ms |
11356 KB |
Output is correct |
11 |
Correct |
2 ms |
13404 KB |
Output is correct |
12 |
Correct |
2 ms |
11356 KB |
Output is correct |
13 |
Correct |
2 ms |
13404 KB |
Output is correct |
14 |
Correct |
2 ms |
13404 KB |
Output is correct |
15 |
Correct |
2 ms |
11356 KB |
Output is correct |
16 |
Correct |
2 ms |
13404 KB |
Output is correct |
17 |
Correct |
2 ms |
13404 KB |
Output is correct |
18 |
Correct |
2 ms |
11356 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
11352 KB |
Output is correct |
2 |
Correct |
2 ms |
13404 KB |
Output is correct |
3 |
Correct |
2 ms |
13404 KB |
Output is correct |
4 |
Correct |
2 ms |
11356 KB |
Output is correct |
5 |
Correct |
2 ms |
11356 KB |
Output is correct |
6 |
Correct |
3 ms |
13492 KB |
Output is correct |
7 |
Correct |
2 ms |
13404 KB |
Output is correct |
8 |
Correct |
2 ms |
13404 KB |
Output is correct |
9 |
Correct |
1 ms |
11440 KB |
Output is correct |
10 |
Correct |
2 ms |
11356 KB |
Output is correct |
11 |
Correct |
2 ms |
13404 KB |
Output is correct |
12 |
Correct |
2 ms |
11356 KB |
Output is correct |
13 |
Correct |
2 ms |
13404 KB |
Output is correct |
14 |
Correct |
2 ms |
13404 KB |
Output is correct |
15 |
Correct |
2 ms |
11356 KB |
Output is correct |
16 |
Correct |
2 ms |
13404 KB |
Output is correct |
17 |
Correct |
2 ms |
13404 KB |
Output is correct |
18 |
Correct |
2 ms |
11356 KB |
Output is correct |
19 |
Correct |
2 ms |
11356 KB |
Output is correct |
20 |
Correct |
3 ms |
13400 KB |
Output is correct |
21 |
Correct |
2 ms |
13404 KB |
Output is correct |
22 |
Correct |
4 ms |
15972 KB |
Output is correct |
23 |
Correct |
3 ms |
15708 KB |
Output is correct |
24 |
Correct |
4 ms |
16476 KB |
Output is correct |
25 |
Correct |
3 ms |
15452 KB |
Output is correct |
26 |
Correct |
4 ms |
16624 KB |
Output is correct |
27 |
Correct |
3 ms |
11412 KB |
Output is correct |
28 |
Correct |
3 ms |
15964 KB |
Output is correct |
29 |
Correct |
3 ms |
16472 KB |
Output is correct |
30 |
Correct |
3 ms |
16476 KB |
Output is correct |
31 |
Correct |
4 ms |
15452 KB |
Output is correct |
32 |
Correct |
3 ms |
15452 KB |
Output is correct |
33 |
Correct |
4 ms |
16220 KB |
Output is correct |
34 |
Correct |
3 ms |
17500 KB |
Output is correct |
35 |
Correct |
4 ms |
16568 KB |
Output is correct |
36 |
Correct |
4 ms |
16988 KB |
Output is correct |
37 |
Correct |
4 ms |
15452 KB |
Output is correct |
38 |
Correct |
3 ms |
16292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
11352 KB |
Output is correct |
2 |
Correct |
2 ms |
13404 KB |
Output is correct |
3 |
Correct |
2 ms |
13404 KB |
Output is correct |
4 |
Correct |
2 ms |
11356 KB |
Output is correct |
5 |
Correct |
2 ms |
11356 KB |
Output is correct |
6 |
Correct |
3 ms |
13492 KB |
Output is correct |
7 |
Correct |
2 ms |
13404 KB |
Output is correct |
8 |
Correct |
2 ms |
13404 KB |
Output is correct |
9 |
Correct |
1 ms |
11440 KB |
Output is correct |
10 |
Correct |
2 ms |
11356 KB |
Output is correct |
11 |
Correct |
2 ms |
13404 KB |
Output is correct |
12 |
Correct |
2 ms |
11356 KB |
Output is correct |
13 |
Correct |
2 ms |
13404 KB |
Output is correct |
14 |
Correct |
2 ms |
13404 KB |
Output is correct |
15 |
Correct |
2 ms |
11356 KB |
Output is correct |
16 |
Correct |
2 ms |
13404 KB |
Output is correct |
17 |
Correct |
2 ms |
13404 KB |
Output is correct |
18 |
Correct |
2 ms |
11356 KB |
Output is correct |
19 |
Correct |
72 ms |
17236 KB |
Output is correct |
20 |
Correct |
99 ms |
18000 KB |
Output is correct |
21 |
Correct |
76 ms |
17836 KB |
Output is correct |
22 |
Correct |
65 ms |
18396 KB |
Output is correct |
23 |
Correct |
39 ms |
20560 KB |
Output is correct |
24 |
Correct |
38 ms |
18512 KB |
Output is correct |
25 |
Correct |
104 ms |
21448 KB |
Output is correct |
26 |
Correct |
91 ms |
24956 KB |
Output is correct |
27 |
Correct |
101 ms |
24064 KB |
Output is correct |
28 |
Correct |
141 ms |
38316 KB |
Output is correct |
29 |
Correct |
166 ms |
37608 KB |
Output is correct |
30 |
Correct |
96 ms |
24468 KB |
Output is correct |
31 |
Correct |
88 ms |
24400 KB |
Output is correct |
32 |
Correct |
102 ms |
24564 KB |
Output is correct |
33 |
Correct |
126 ms |
21328 KB |
Output is correct |
34 |
Correct |
141 ms |
23584 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
11352 KB |
Output is correct |
2 |
Correct |
2 ms |
13404 KB |
Output is correct |
3 |
Correct |
2 ms |
13404 KB |
Output is correct |
4 |
Correct |
2 ms |
11356 KB |
Output is correct |
5 |
Correct |
2 ms |
11356 KB |
Output is correct |
6 |
Correct |
3 ms |
13492 KB |
Output is correct |
7 |
Correct |
2 ms |
13404 KB |
Output is correct |
8 |
Correct |
2 ms |
13404 KB |
Output is correct |
9 |
Correct |
1 ms |
11440 KB |
Output is correct |
10 |
Correct |
2 ms |
11356 KB |
Output is correct |
11 |
Correct |
2 ms |
13404 KB |
Output is correct |
12 |
Correct |
2 ms |
11356 KB |
Output is correct |
13 |
Correct |
2 ms |
13404 KB |
Output is correct |
14 |
Correct |
2 ms |
13404 KB |
Output is correct |
15 |
Correct |
2 ms |
11356 KB |
Output is correct |
16 |
Correct |
2 ms |
13404 KB |
Output is correct |
17 |
Correct |
2 ms |
13404 KB |
Output is correct |
18 |
Correct |
2 ms |
11356 KB |
Output is correct |
19 |
Correct |
2 ms |
11356 KB |
Output is correct |
20 |
Correct |
3 ms |
13400 KB |
Output is correct |
21 |
Correct |
2 ms |
13404 KB |
Output is correct |
22 |
Correct |
4 ms |
15972 KB |
Output is correct |
23 |
Correct |
3 ms |
15708 KB |
Output is correct |
24 |
Correct |
4 ms |
16476 KB |
Output is correct |
25 |
Correct |
3 ms |
15452 KB |
Output is correct |
26 |
Correct |
4 ms |
16624 KB |
Output is correct |
27 |
Correct |
3 ms |
11412 KB |
Output is correct |
28 |
Correct |
3 ms |
15964 KB |
Output is correct |
29 |
Correct |
3 ms |
16472 KB |
Output is correct |
30 |
Correct |
3 ms |
16476 KB |
Output is correct |
31 |
Correct |
4 ms |
15452 KB |
Output is correct |
32 |
Correct |
3 ms |
15452 KB |
Output is correct |
33 |
Correct |
4 ms |
16220 KB |
Output is correct |
34 |
Correct |
3 ms |
17500 KB |
Output is correct |
35 |
Correct |
4 ms |
16568 KB |
Output is correct |
36 |
Correct |
4 ms |
16988 KB |
Output is correct |
37 |
Correct |
4 ms |
15452 KB |
Output is correct |
38 |
Correct |
3 ms |
16292 KB |
Output is correct |
39 |
Correct |
72 ms |
17236 KB |
Output is correct |
40 |
Correct |
99 ms |
18000 KB |
Output is correct |
41 |
Correct |
76 ms |
17836 KB |
Output is correct |
42 |
Correct |
65 ms |
18396 KB |
Output is correct |
43 |
Correct |
39 ms |
20560 KB |
Output is correct |
44 |
Correct |
38 ms |
18512 KB |
Output is correct |
45 |
Correct |
104 ms |
21448 KB |
Output is correct |
46 |
Correct |
91 ms |
24956 KB |
Output is correct |
47 |
Correct |
101 ms |
24064 KB |
Output is correct |
48 |
Correct |
141 ms |
38316 KB |
Output is correct |
49 |
Correct |
166 ms |
37608 KB |
Output is correct |
50 |
Correct |
96 ms |
24468 KB |
Output is correct |
51 |
Correct |
88 ms |
24400 KB |
Output is correct |
52 |
Correct |
102 ms |
24564 KB |
Output is correct |
53 |
Correct |
126 ms |
21328 KB |
Output is correct |
54 |
Correct |
141 ms |
23584 KB |
Output is correct |
55 |
Correct |
7 ms |
13912 KB |
Output is correct |
56 |
Correct |
8 ms |
13660 KB |
Output is correct |
57 |
Correct |
51 ms |
19668 KB |
Output is correct |
58 |
Correct |
32 ms |
20164 KB |
Output is correct |
59 |
Correct |
64 ms |
27472 KB |
Output is correct |
60 |
Correct |
229 ms |
40420 KB |
Output is correct |
61 |
Correct |
127 ms |
24144 KB |
Output is correct |
62 |
Correct |
110 ms |
22424 KB |
Output is correct |
63 |
Correct |
124 ms |
22356 KB |
Output is correct |
64 |
Correct |
253 ms |
26600 KB |
Output is correct |
65 |
Correct |
135 ms |
24912 KB |
Output is correct |
66 |
Correct |
213 ms |
37976 KB |
Output is correct |
67 |
Correct |
54 ms |
23488 KB |
Output is correct |
68 |
Correct |
160 ms |
27652 KB |
Output is correct |
69 |
Correct |
107 ms |
26604 KB |
Output is correct |
70 |
Correct |
121 ms |
27484 KB |
Output is correct |