| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 748591 |
2023-05-26T14:42:26 Z |
ZeroCool |
Race (IOI11_race) |
C++17 |
|
397 ms |
108108 KB |
#include "race.h"
#include <bits/stdc++.h>
#define ll long long
const int mxn = 200005;
const int inf = 1e9;
using namespace std;
set<pair<ll,int> > s[mxn];
vector<pair<int,int> > g[mxn];
int n,k;
int ans;
void dfs(int x,int p,ll dis,int dep){
s[x].insert({dis,dep});
for(auto par : g[x]){
int y = par.first;
int z = par.second;
if(y == p)continue;
dfs(y,x,dis+z,dep+1);
if(s[x].size() < s[y].size())swap(s[x],s[y]);
for(auto par2 : s[y]){
int len= par2.first;
int cnt = par2.second;
ll q = k - len + 2*dis;
auto it = s[x].lower_bound({q,0});
if(it != s[x].end() && (*it).first == q){
ans = min(ans, (*it).second + cnt - 2 * dep);
}
}
s[x].insert(s[y].begin(),s[y].end());
}
}
int best_path(int _n, int _k, int H[][2], int L[]){
n = _n;
k = _k;
//vector<vector<pair<int, int>>> g(n);
for (int i = 0; i < n - 1; i++) {
g[H[i][0]].push_back({H[i][1], L[i]});
g[H[i][1]].push_back({H[i][0], L[i]});
}
ans = n;
//vector<set<pair<ll, int>>> s(n);
// auto dfs = [&](auto dfs, int x, int p, ll dis, int dep) -> void {
// //s[x].emplace(dis, dep);
// s[x].insert({dis,dep});
// for (auto [y,z] : g[x]) {
// if (y == p) continue;
// dfs(dfs, y, x, dis + z, dep + 1);
// if (s[x].size() < s[y].size()) {
// swap(s[x], s[y]);
// }
// for (auto [len, cnt] : s[y]) {
// ll q = k - len + 2 * dis;
// auto it = s[x].lower_bound({q, 0});
// if (it != s[x].end() && (*it).first == q) {
// ans = min(ans, (*it).second + cnt - 2 * dep);
// }
// }
// s[x].insert(s[y].begin(), s[y].end());
// }
// };
dfs( 0, -1, 0, 0);
if (ans == n) {
ans = -1;
}
return ans;
}
//Pls work
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 3 |
Correct |
9 ms |
14376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 5 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 6 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 8 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 9 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 10 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 11 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 14 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14324 KB |
Output is correct |
| 16 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 17 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14420 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 3 |
Correct |
9 ms |
14376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 5 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 6 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 8 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 9 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 10 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 11 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 14 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14324 KB |
Output is correct |
| 16 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 17 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 19 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 20 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 21 |
Correct |
9 ms |
14660 KB |
Output is correct |
| 22 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 23 |
Correct |
11 ms |
14664 KB |
Output is correct |
| 24 |
Correct |
8 ms |
14628 KB |
Output is correct |
| 25 |
Correct |
9 ms |
14592 KB |
Output is correct |
| 26 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 27 |
Correct |
8 ms |
14536 KB |
Output is correct |
| 28 |
Correct |
8 ms |
14620 KB |
Output is correct |
| 29 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 30 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 31 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 32 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 33 |
Correct |
11 ms |
14668 KB |
Output is correct |
| 34 |
Correct |
8 ms |
14548 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14548 KB |
Output is correct |
| 36 |
Correct |
8 ms |
14540 KB |
Output is correct |
| 37 |
Correct |
8 ms |
14532 KB |
Output is correct |
| 38 |
Correct |
8 ms |
14644 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 3 |
Correct |
9 ms |
14376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 5 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 6 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 8 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 9 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 10 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 11 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 14 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14324 KB |
Output is correct |
| 16 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 17 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 19 |
Correct |
132 ms |
41016 KB |
Output is correct |
| 20 |
Correct |
131 ms |
40912 KB |
Output is correct |
| 21 |
Correct |
135 ms |
40284 KB |
Output is correct |
| 22 |
Correct |
134 ms |
39036 KB |
Output is correct |
| 23 |
Correct |
161 ms |
53356 KB |
Output is correct |
| 24 |
Correct |
123 ms |
39988 KB |
Output is correct |
| 25 |
Correct |
119 ms |
43724 KB |
Output is correct |
| 26 |
Correct |
85 ms |
48204 KB |
Output is correct |
| 27 |
Correct |
186 ms |
49400 KB |
Output is correct |
| 28 |
Correct |
271 ms |
82292 KB |
Output is correct |
| 29 |
Correct |
249 ms |
80924 KB |
Output is correct |
| 30 |
Correct |
188 ms |
49412 KB |
Output is correct |
| 31 |
Correct |
188 ms |
49224 KB |
Output is correct |
| 32 |
Correct |
239 ms |
49596 KB |
Output is correct |
| 33 |
Correct |
203 ms |
51144 KB |
Output is correct |
| 34 |
Correct |
297 ms |
84144 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 3 |
Correct |
9 ms |
14376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 5 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 6 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 8 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 9 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 10 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 11 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14404 KB |
Output is correct |
| 14 |
Correct |
7 ms |
14400 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14324 KB |
Output is correct |
| 16 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 17 |
Correct |
8 ms |
14420 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 19 |
Correct |
8 ms |
14400 KB |
Output is correct |
| 20 |
Correct |
7 ms |
14420 KB |
Output is correct |
| 21 |
Correct |
9 ms |
14660 KB |
Output is correct |
| 22 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 23 |
Correct |
11 ms |
14664 KB |
Output is correct |
| 24 |
Correct |
8 ms |
14628 KB |
Output is correct |
| 25 |
Correct |
9 ms |
14592 KB |
Output is correct |
| 26 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 27 |
Correct |
8 ms |
14536 KB |
Output is correct |
| 28 |
Correct |
8 ms |
14620 KB |
Output is correct |
| 29 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 30 |
Correct |
9 ms |
14676 KB |
Output is correct |
| 31 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 32 |
Correct |
8 ms |
14676 KB |
Output is correct |
| 33 |
Correct |
11 ms |
14668 KB |
Output is correct |
| 34 |
Correct |
8 ms |
14548 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14548 KB |
Output is correct |
| 36 |
Correct |
8 ms |
14540 KB |
Output is correct |
| 37 |
Correct |
8 ms |
14532 KB |
Output is correct |
| 38 |
Correct |
8 ms |
14644 KB |
Output is correct |
| 39 |
Correct |
132 ms |
41016 KB |
Output is correct |
| 40 |
Correct |
131 ms |
40912 KB |
Output is correct |
| 41 |
Correct |
135 ms |
40284 KB |
Output is correct |
| 42 |
Correct |
134 ms |
39036 KB |
Output is correct |
| 43 |
Correct |
161 ms |
53356 KB |
Output is correct |
| 44 |
Correct |
123 ms |
39988 KB |
Output is correct |
| 45 |
Correct |
119 ms |
43724 KB |
Output is correct |
| 46 |
Correct |
85 ms |
48204 KB |
Output is correct |
| 47 |
Correct |
186 ms |
49400 KB |
Output is correct |
| 48 |
Correct |
271 ms |
82292 KB |
Output is correct |
| 49 |
Correct |
249 ms |
80924 KB |
Output is correct |
| 50 |
Correct |
188 ms |
49412 KB |
Output is correct |
| 51 |
Correct |
188 ms |
49224 KB |
Output is correct |
| 52 |
Correct |
239 ms |
49596 KB |
Output is correct |
| 53 |
Correct |
203 ms |
51144 KB |
Output is correct |
| 54 |
Correct |
297 ms |
84144 KB |
Output is correct |
| 55 |
Correct |
20 ms |
17828 KB |
Output is correct |
| 56 |
Correct |
15 ms |
16452 KB |
Output is correct |
| 57 |
Correct |
85 ms |
35660 KB |
Output is correct |
| 58 |
Correct |
50 ms |
26724 KB |
Output is correct |
| 59 |
Correct |
80 ms |
48132 KB |
Output is correct |
| 60 |
Correct |
266 ms |
81488 KB |
Output is correct |
| 61 |
Correct |
239 ms |
55228 KB |
Output is correct |
| 62 |
Correct |
197 ms |
49408 KB |
Output is correct |
| 63 |
Correct |
231 ms |
49476 KB |
Output is correct |
| 64 |
Correct |
391 ms |
108108 KB |
Output is correct |
| 65 |
Correct |
397 ms |
99840 KB |
Output is correct |
| 66 |
Correct |
255 ms |
77984 KB |
Output is correct |
| 67 |
Correct |
156 ms |
40724 KB |
Output is correct |
| 68 |
Correct |
309 ms |
64992 KB |
Output is correct |
| 69 |
Correct |
324 ms |
70608 KB |
Output is correct |
| 70 |
Correct |
292 ms |
63012 KB |
Output is correct |
