| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 114633 |
2019-06-02T06:02:49 Z |
Shafin666 |
Race (IOI11_race) |
C++14 |
|
1704 ms |
48184 KB |
#include <bits/stdc++.h>
#include "race.h"
#define mp make_pair
#define pb push_back
#define pii pair<int, int>
#define nyan "(=^･ω･^=)"
#define read_input freopen("in.txt","r", stdin)
#define print_output freopen("out.txt","w", stdout)
typedef long long ll;
typedef long double ld;
using namespace std;
const int maxn = 2e5+10;
const int inf = 1e6+13;
int sz[maxn], lev[maxn], dist[maxn];
int in[maxn], out[maxn], ver[maxn];
unordered_map<ll, int> M;
int idx = 1, n, k;
vector<pii> adj[maxn];
void getsz(int u, int par) {
ver[idx] = u; in[u] = idx++;
sz[u] = 1;
for(auto p : adj[u]) {
int v = p.first; ll w = p.second;
if(v == par) continue;
lev[v] = lev[u] + 1;
dist[v] = dist[u] + w;
getsz(v, u);
sz[u] += sz[v];
} out[u] = idx;
}
int ans = inf;
void dfs(int u, int par, int keep) {
int mx = -1, bigchild = -1;
for(auto v : adj[u]) {
if(v.first == par) continue;
if(sz[v.first] > mx) mx = sz[v.first], bigchild = v.first;
}
for(auto v : adj[u]) {
if(v.first == par || v.first == bigchild) continue;
dfs(v.first, u, 0);
}
if(bigchild != -1)
dfs(bigchild, u, 1);
M[dist[u]] = u;
if(bigchild != -1) {
ll w = k + dist[u];
if(M.find(w) != M.end())
ans = min(ans, lev[M[w]] - lev[u]);
}
for(auto v : adj[u]) {
if(v.first == par || v.first == bigchild) continue;
int x = v.first;
for(int p = in[x]; p < out[x]; p++) {
ll w = k + 2LL * dist[u] - dist[ver[p]];
if(M.find(w) != M.end())
ans = min(ans, lev[M[w]] + lev[ver[p]] - 2*lev[u]);
}
for(int p = in[x]; p < out[x]; p++) {
int x = ver[p]; ll w = dist[x];
if(M.find(w) == M.end() || lev[x] < lev[M[w]]) M[w] = x;
}
}
if(not keep)
M.clear();
}
int best_path(int N, int K, int H[][2], int L[]) {
n = N; k = K;
for (int i = 0; i < n-1; i++){
adj[H[i][0]].emplace_back(H[i][1], L[i]);
adj[H[i][1]].emplace_back(H[i][0], L[i]);
}
getsz(0, -1);
dfs(0, -1, 0);
if (ans == inf) return -1;
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 2 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 5 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 6 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 12 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 15 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5120 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 2 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 5 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 6 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 12 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 15 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 19 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 20 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 22 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 23 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 24 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 25 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 26 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 27 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 29 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 30 |
Correct |
6 ms |
5240 KB |
Output is correct |
| 31 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 32 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 33 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 34 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 36 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 37 |
Correct |
6 ms |
5324 KB |
Output is correct |
| 38 |
Correct |
7 ms |
5248 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 2 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 5 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 6 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 12 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 15 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 19 |
Correct |
145 ms |
12428 KB |
Output is correct |
| 20 |
Correct |
133 ms |
12280 KB |
Output is correct |
| 21 |
Correct |
129 ms |
12280 KB |
Output is correct |
| 22 |
Correct |
126 ms |
12440 KB |
Output is correct |
| 23 |
Correct |
146 ms |
12664 KB |
Output is correct |
| 24 |
Correct |
131 ms |
12520 KB |
Output is correct |
| 25 |
Correct |
125 ms |
17808 KB |
Output is correct |
| 26 |
Correct |
58 ms |
22776 KB |
Output is correct |
| 27 |
Correct |
244 ms |
19932 KB |
Output is correct |
| 28 |
Correct |
341 ms |
48184 KB |
Output is correct |
| 29 |
Correct |
335 ms |
46588 KB |
Output is correct |
| 30 |
Correct |
248 ms |
19960 KB |
Output is correct |
| 31 |
Correct |
284 ms |
19996 KB |
Output is correct |
| 32 |
Correct |
354 ms |
20024 KB |
Output is correct |
| 33 |
Correct |
258 ms |
18852 KB |
Output is correct |
| 34 |
Correct |
409 ms |
26688 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 2 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 5 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 6 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 12 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 15 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 19 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 20 |
Correct |
5 ms |
5120 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5120 KB |
Output is correct |
| 22 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 23 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 24 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 25 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 26 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 27 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 29 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 30 |
Correct |
6 ms |
5240 KB |
Output is correct |
| 31 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 32 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 33 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 34 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5248 KB |
Output is correct |
| 36 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 37 |
Correct |
6 ms |
5324 KB |
Output is correct |
| 38 |
Correct |
7 ms |
5248 KB |
Output is correct |
| 39 |
Correct |
145 ms |
12428 KB |
Output is correct |
| 40 |
Correct |
133 ms |
12280 KB |
Output is correct |
| 41 |
Correct |
129 ms |
12280 KB |
Output is correct |
| 42 |
Correct |
126 ms |
12440 KB |
Output is correct |
| 43 |
Correct |
146 ms |
12664 KB |
Output is correct |
| 44 |
Correct |
131 ms |
12520 KB |
Output is correct |
| 45 |
Correct |
125 ms |
17808 KB |
Output is correct |
| 46 |
Correct |
58 ms |
22776 KB |
Output is correct |
| 47 |
Correct |
244 ms |
19932 KB |
Output is correct |
| 48 |
Correct |
341 ms |
48184 KB |
Output is correct |
| 49 |
Correct |
335 ms |
46588 KB |
Output is correct |
| 50 |
Correct |
248 ms |
19960 KB |
Output is correct |
| 51 |
Correct |
284 ms |
19996 KB |
Output is correct |
| 52 |
Correct |
354 ms |
20024 KB |
Output is correct |
| 53 |
Correct |
258 ms |
18852 KB |
Output is correct |
| 54 |
Correct |
409 ms |
26688 KB |
Output is correct |
| 55 |
Correct |
16 ms |
6144 KB |
Output is correct |
| 56 |
Correct |
13 ms |
5888 KB |
Output is correct |
| 57 |
Correct |
93 ms |
12508 KB |
Output is correct |
| 58 |
Correct |
50 ms |
12540 KB |
Output is correct |
| 59 |
Correct |
76 ms |
26760 KB |
Output is correct |
| 60 |
Correct |
353 ms |
47384 KB |
Output is correct |
| 61 |
Correct |
252 ms |
21120 KB |
Output is correct |
| 62 |
Correct |
248 ms |
19960 KB |
Output is correct |
| 63 |
Correct |
347 ms |
19960 KB |
Output is correct |
| 64 |
Correct |
1634 ms |
23560 KB |
Output is correct |
| 65 |
Correct |
1704 ms |
27700 KB |
Output is correct |
| 66 |
Correct |
376 ms |
42936 KB |
Output is correct |
| 67 |
Correct |
242 ms |
20068 KB |
Output is correct |
| 68 |
Correct |
429 ms |
26856 KB |
Output is correct |
| 69 |
Correct |
423 ms |
27104 KB |
Output is correct |
| 70 |
Correct |
358 ms |
26040 KB |
Output is correct |
