#include "split.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef pair<int,int> ii;
static vi answer;
static vi adj[100005];
static vi child[100005];
static vi tree[100005];
static int sz[100005];
static int p[100005];
static bool vis[100005];
void dfs(int u){
vis[u] = true;
sz[u] = 1;
for(int v : adj[u]){
if(!vis[v]){
child[u].push_back(v);
tree[u].push_back(v);
tree[v].push_back(u);
p[v] = u;
dfs(v);
sz[u] += sz[v];
}
}
}
void bfs(int root, int number){
if(number == 0) return;
queue<int> bf;
bf.push(root);
while(!bf.empty()){
int u = bf.front(); bf.pop();
for(int v : tree[u]){
if(answer[v] == 0){
answer[v] = answer[u];
number--;
if(number == 0) return;
bf.push(v);
}
}
}
}
vi find_split(int n, int aaa, int bbb, int ccc, vi p, vi q) {
vector<ii> v = {ii(aaa,1),ii(bbb,2),ii(ccc,3)};
sort(v.begin(),v.end());
int A = v[0].first;
int B = v[1].first;
int AColour = v[0].second;
int BColour = v[1].second;
int CColour = v[2].second;
answer.assign(n,0);
for(int i = 0;i < (int) p.size();i++){
int x = p[i], y = q[i];
adj[y].push_back(x);
adj[x].push_back(y);
}
dfs(0);
/*
for(int u = 0;u < n;u++){
vector<ii> subtrees;
for(int v : child[u]){
subtrees.push_back({sz[v],v});
}
subtrees.push_back({n - sz[u],p[u]});
for(ii x : subtrees){
if(x.first >= A && n - x.first >= B){
//cout << x.second << " " << u << "\n";
answer[x.second] = AColour;
answer[u] = BColour;
bfs(x.second, A-1);
bfs(u,B-1);
for(int i = 0;i < n;i++){
if(answer[i] == 0) answer[i] = CColour;
}
return answer;
}
}
}
*/
for(int i = 0;i < (int) p.size();i++){
int x = p[i], y = q[i];
if(sz[y] < sz[x]) swap(x,y); ///x is child of y
int l = sz[x], r = n - sz[x];
if(l > r) swap(l,r), swap(x,y);
answer[x] = AColour;
answer[y] = BColour;
bfs(x,A-1);
bfs(y,B-1);
for(int i = 0;i < n;i++){
if(answer[i] == 0) answer[i] = CColour;
}
return answer;
}
return answer;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
7420 KB |
ok, correct split |
2 |
Correct |
8 ms |
7416 KB |
ok, correct split |
3 |
Correct |
8 ms |
7544 KB |
ok, correct split |
4 |
Correct |
8 ms |
7416 KB |
ok, correct split |
5 |
Correct |
8 ms |
7416 KB |
ok, correct split |
6 |
Correct |
8 ms |
7416 KB |
ok, correct split |
7 |
Incorrect |
153 ms |
26744 KB |
invalid split: #1=62088, #2=4579, #3=33333 |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
7416 KB |
ok, correct split |
2 |
Correct |
8 ms |
7416 KB |
ok, correct split |
3 |
Correct |
8 ms |
7416 KB |
ok, correct split |
4 |
Correct |
167 ms |
24304 KB |
ok, correct split |
5 |
Correct |
117 ms |
19448 KB |
ok, correct split |
6 |
Correct |
149 ms |
27000 KB |
ok, correct split |
7 |
Correct |
144 ms |
24912 KB |
ok, correct split |
8 |
Correct |
177 ms |
23032 KB |
ok, correct split |
9 |
Correct |
141 ms |
20856 KB |
ok, correct split |
10 |
Correct |
85 ms |
18672 KB |
ok, correct split |
11 |
Correct |
85 ms |
18672 KB |
ok, correct split |
12 |
Correct |
89 ms |
19056 KB |
ok, correct split |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
7416 KB |
ok, correct split |
2 |
Incorrect |
124 ms |
19448 KB |
invalid split: #1=6, #2=40000, #3=59994 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
7416 KB |
ok, correct split |
2 |
Incorrect |
8 ms |
7416 KB |
invalid split: #1=1, #2=2, #3=3 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
7420 KB |
ok, correct split |
2 |
Correct |
8 ms |
7416 KB |
ok, correct split |
3 |
Correct |
8 ms |
7544 KB |
ok, correct split |
4 |
Correct |
8 ms |
7416 KB |
ok, correct split |
5 |
Correct |
8 ms |
7416 KB |
ok, correct split |
6 |
Correct |
8 ms |
7416 KB |
ok, correct split |
7 |
Incorrect |
153 ms |
26744 KB |
invalid split: #1=62088, #2=4579, #3=33333 |
8 |
Halted |
0 ms |
0 KB |
- |