| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1084824 |
2024-09-07T04:38:49 Z |
_Masum_Billah |
Race (IOI11_race) |
C++17 |
|
3000 ms |
168600 KB |
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll N = 2e5 + 10;
vector<array<ll, 2>> ad[N];
ll mark[N], sz[N], ans = 1e18, k;
array<ll, 2> nodes[N];
int t, tin[N], tout[N], lv[N];
map <ll, ll> we;
ll size(ll node, ll par) {
sz[node] = 1;
for (auto [v, w] : ad[node]) {
if (v != par and !mark[v]) {
sz[node] += size(v, node);
}
}
return sz[node];
}
ll centroid(ll node, ll par, ll s) {
for (auto [v, w] : ad[node]) {
if (v != par and !mark[v]) {
if (sz[v] > s / 2) return centroid(v, node, s);
}
}
return node;
}
void dfs(ll node, ll par, ll wt, int l = 0) {
nodes[t] = {node, wt};
tin[node] = t++;
lv[node] = l;
for (auto [v, w] : ad[node]) {
if (v != par and !mark[v]) {
dfs(v, node, wt + w, l + 1);
}
}
tout[node] = t - 1;
}
void go(ll node) {
ll s = size(node, node);
ll c = centroid(node, node, s);
mark[c] = 1;
t = 0;
dfs(c, c, 0);
for (int i = 0; i < t; i++) {
auto [a, b] = nodes[i];
we[b] = 1e18;
}
we[0] = 0;
for (auto [v, w] : ad[c]) {
if (!mark[v]) {
for (ll i = tin[v]; i <= tout[v]; i++) {
auto [a, b] = nodes[i];
auto it = we.find(k - b);
if (k - b >= 0 and it != we.end())
ans = min(ans, (*it).second + lv[a]);
}
for (ll i = tin[v]; i <= tout[v]; i++) {
auto [a, b] = nodes[i];
we[b] = min(we[b], 1ll * lv[a]);
}
}
}
for (int i = 0; i < t; i++) {
auto [a, b] = nodes[i];
we[b] = 1e18;
}
for (auto [v, w] : ad[c]) {
if (!mark[v]) {
go(v);
}
}
}
int best_path(int n, int d, int H[][2], int dis[]) {
k = d;
for (int i = 0; i + 1 < n; i++) {
ad[H[i][0]].push_back({H[i][1], dis[i]});
ad[H[i][1]].push_back({H[i][0], dis[i]});
}
go(0);
if (ans == 1e18) ans = -1;
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5176 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5176 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
2 ms |
5164 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 22 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 24 |
Correct |
4 ms |
5468 KB |
Output is correct |
| 25 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5464 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5428 KB |
Output is correct |
| 30 |
Correct |
5 ms |
5464 KB |
Output is correct |
| 31 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5468 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 36 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5176 KB |
Output is correct |
| 19 |
Correct |
214 ms |
17108 KB |
Output is correct |
| 20 |
Correct |
197 ms |
17028 KB |
Output is correct |
| 21 |
Correct |
193 ms |
16980 KB |
Output is correct |
| 22 |
Correct |
185 ms |
16980 KB |
Output is correct |
| 23 |
Correct |
317 ms |
17864 KB |
Output is correct |
| 24 |
Correct |
127 ms |
16716 KB |
Output is correct |
| 25 |
Correct |
189 ms |
20216 KB |
Output is correct |
| 26 |
Correct |
113 ms |
22808 KB |
Output is correct |
| 27 |
Correct |
300 ms |
29776 KB |
Output is correct |
| 28 |
Correct |
2032 ms |
91200 KB |
Output is correct |
| 29 |
Correct |
1895 ms |
83280 KB |
Output is correct |
| 30 |
Correct |
327 ms |
29776 KB |
Output is correct |
| 31 |
Correct |
292 ms |
29884 KB |
Output is correct |
| 32 |
Correct |
365 ms |
29972 KB |
Output is correct |
| 33 |
Correct |
396 ms |
28752 KB |
Output is correct |
| 34 |
Execution timed out |
3035 ms |
168600 KB |
Time limit exceeded |
| 35 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5176 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
2 ms |
5164 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 22 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 24 |
Correct |
4 ms |
5468 KB |
Output is correct |
| 25 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5464 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5428 KB |
Output is correct |
| 30 |
Correct |
5 ms |
5464 KB |
Output is correct |
| 31 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5468 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 36 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5468 KB |
Output is correct |
| 39 |
Correct |
214 ms |
17108 KB |
Output is correct |
| 40 |
Correct |
197 ms |
17028 KB |
Output is correct |
| 41 |
Correct |
193 ms |
16980 KB |
Output is correct |
| 42 |
Correct |
185 ms |
16980 KB |
Output is correct |
| 43 |
Correct |
317 ms |
17864 KB |
Output is correct |
| 44 |
Correct |
127 ms |
16716 KB |
Output is correct |
| 45 |
Correct |
189 ms |
20216 KB |
Output is correct |
| 46 |
Correct |
113 ms |
22808 KB |
Output is correct |
| 47 |
Correct |
300 ms |
29776 KB |
Output is correct |
| 48 |
Correct |
2032 ms |
91200 KB |
Output is correct |
| 49 |
Correct |
1895 ms |
83280 KB |
Output is correct |
| 50 |
Correct |
327 ms |
29776 KB |
Output is correct |
| 51 |
Correct |
292 ms |
29884 KB |
Output is correct |
| 52 |
Correct |
365 ms |
29972 KB |
Output is correct |
| 53 |
Correct |
396 ms |
28752 KB |
Output is correct |
| 54 |
Execution timed out |
3035 ms |
168600 KB |
Time limit exceeded |
| 55 |
Halted |
0 ms |
0 KB |
- |
