oj.uz

답안 #163325

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
163325 2019-11-12T16:10:27 Z HungAnhGoldIBO2020 Unique Cities (JOI19_ho_t5) C++14
100 / 100
 567 ms 49396 KB 
#include<bits/stdc++.h>
using namespace std;
const int N=2e5+2;
int cnt[N],dp[N],color[N],level[N],ans[N],pts=0,dem=0;
vector<int> adj[N];
stack<int> lis;
void add(int x){
	cnt[color[x]]++;
	if(cnt[color[x]]==1){
		dem++;
	}
	lis.push(x);
}
void del(){
	assert(lis.size());
	int x=lis.top();
	lis.pop();
	cnt[color[x]]--;
	if(cnt[color[x]]==0){
		dem--;
	}
}
void dfs(int x,int p){
	if(level[x]>=level[pts]){
		pts=x;
	}
	dp[x]=level[x];
	for(int i=0;i<adj[x].size();i++){
		if(adj[x][i]!=p){
			level[adj[x][i]]=level[x]+1;
			dfs(adj[x][i],x);
			dp[x]=max(dp[x],dp[adj[x][i]]);
		}
	}
}
bool cmp(pair<int,int> x,pair<int,int> y){
	return x.first>y.first;
}
void dfs1(int x,int p){
	if(x!=p){
		add(p);
	}
	vector<pair<int,int> > wow;
	for(int i=0;i<adj[x].size();i++){
		if(adj[x][i]!=p){
			wow.push_back({dp[adj[x][i]],adj[x][i]});
		}
	}
	sort(wow.begin(),wow.end(),cmp);
	for(int i=0;i<wow.size();i++){
		int to=0;
		if(i==0){
			if(wow.size()>1){
				to=wow[1].first;
			}
		}
		else{
			to=wow[0].first;
		}
		while(lis.size()&&to-level[x]>=level[x]-level[lis.top()]){
			del();
		}
		dfs1(wow[i].second,x);
	}
	while(lis.size()&&dp[x]-level[x]>=level[x]-level[lis.top()]){
		del();
	}
	ans[x]=max(ans[x],dem);
//	cout<<x<<' '<<lis.size()<<' '<<level[x]<<' '<<dp[x]<<' '<<dem<<" cac\n";
}
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n,i,j,k,l,m;
	cin>>n>>m;
	for(i=1;i<n;i++){
		cin>>j>>k;
		adj[j].push_back(k);
		adj[k].push_back(j);
	}
	for(i=1;i<=n;i++){
		cin>>color[i];
	}
	dfs(1,1);
	for(j=0;j<2;j++){
//		cout<<j<<endl;
		i=pts;
		level[i]=0;
		dfs(i,i);
		dfs1(i,i);
		assert(lis.size()==0);
	}
	for(i=1;i<=n;i++){
		cout<<ans[i]<<'\n';
	}
}

Compilation message

joi2019_ho_t5.cpp: In function 'void dfs(int, int)':
joi2019_ho_t5.cpp:28:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<adj[x].size();i++){
              ~^~~~~~~~~~~~~~
joi2019_ho_t5.cpp: In function 'void dfs1(int, int)':
joi2019_ho_t5.cpp:44:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<adj[x].size();i++){
              ~^~~~~~~~~~~~~~
joi2019_ho_t5.cpp:50:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<wow.size();i++){
              ~^~~~~~~~~~~
joi2019_ho_t5.cpp: In function 'int main()':
joi2019_ho_t5.cpp:74:14: warning: unused variable 'l' [-Wunused-variable]
  int n,i,j,k,l,m;
              ^

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 8 ms 5112 KB Output is correct
3 Correct 7 ms 5368 KB Output is correct
4 Correct 8 ms 5368 KB Output is correct
5 Correct 8 ms 5368 KB Output is correct
6 Correct 8 ms 5496 KB Output is correct
7 Correct 8 ms 5368 KB Output is correct
8 Correct 8 ms 5240 KB Output is correct
9 Correct 8 ms 5240 KB Output is correct
10 Correct 8 ms 5240 KB Output is correct
11 Correct 8 ms 5240 KB Output is correct
12 Correct 8 ms 5240 KB Output is correct
13 Correct 8 ms 5496 KB Output is correct
14 Correct 8 ms 5368 KB Output is correct
15 Correct 8 ms 5368 KB Output is correct
16 Correct 7 ms 5240 KB Output is correct
17 Correct 8 ms 5428 KB Output is correct
18 Correct 8 ms 5368 KB Output is correct
19 Correct 8 ms 5240 KB Output is correct
20 Correct 8 ms 5496 KB Output is correct
21 Correct 8 ms 5368 KB Output is correct
22 Correct 8 ms 5240 KB Output is correct
23 Correct 8 ms 5240 KB Output is correct
24 Correct 8 ms 5244 KB Output is correct
25 Correct 8 ms 5240 KB Output is correct
26 Correct 9 ms 5240 KB Output is correct
27 Correct 10 ms 5496 KB Output is correct
28 Correct 9 ms 5368 KB Output is correct
29 Correct 8 ms 5368 KB Output is correct
30 Correct 7 ms 5240 KB Output is correct
31 Correct 9 ms 5496 KB Output is correct
32 Correct 9 ms 5368 KB Output is correct

Subtask #2
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 203 ms 12536 KB Output is correct
2 Correct 275 ms 28924 KB Output is correct
3 Correct 42 ms 8952 KB Output is correct
4 Correct 402 ms 17912 KB Output is correct
5 Correct 563 ms 46840 KB Output is correct
6 Correct 512 ms 32232 KB Output is correct
7 Correct 408 ms 18512 KB Output is correct
8 Correct 563 ms 20984 KB Output is correct
9 Correct 481 ms 19804 KB Output is correct
10 Correct 435 ms 19780 KB Output is correct
11 Correct 320 ms 21800 KB Output is correct
12 Correct 510 ms 36088 KB Output is correct
13 Correct 462 ms 32368 KB Output is correct
14 Correct 474 ms 31524 KB Output is correct
15 Correct 253 ms 21692 KB Output is correct
16 Correct 463 ms 38624 KB Output is correct
17 Correct 473 ms 32844 KB Output is correct

Subtask #3
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 329 ms 16488 KB Output is correct
2 Correct 513 ms 47556 KB Output is correct
3 Correct 49 ms 9592 KB Output is correct
4 Correct 424 ms 19832 KB Output is correct
5 Correct 532 ms 49396 KB Output is correct
6 Correct 487 ms 34120 KB Output is correct
7 Correct 382 ms 19616 KB Output is correct
8 Correct 434 ms 25768 KB Output is correct
9 Correct 416 ms 23928 KB Output is correct
10 Correct 562 ms 21888 KB Output is correct
11 Correct 361 ms 21468 KB Output is correct
12 Correct 480 ms 43384 KB Output is correct
13 Correct 501 ms 31916 KB Output is correct
14 Correct 447 ms 32512 KB Output is correct
15 Correct 251 ms 22888 KB Output is correct
16 Correct 464 ms 40156 KB Output is correct
17 Correct 452 ms 34488 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 8 ms 5112 KB Output is correct
3 Correct 7 ms 5368 KB Output is correct
4 Correct 8 ms 5368 KB Output is correct
5 Correct 8 ms 5368 KB Output is correct
6 Correct 8 ms 5496 KB Output is correct
7 Correct 8 ms 5368 KB Output is correct
8 Correct 8 ms 5240 KB Output is correct
9 Correct 8 ms 5240 KB Output is correct
10 Correct 8 ms 5240 KB Output is correct
11 Correct 8 ms 5240 KB Output is correct
12 Correct 8 ms 5240 KB Output is correct
13 Correct 8 ms 5496 KB Output is correct
14 Correct 8 ms 5368 KB Output is correct
15 Correct 8 ms 5368 KB Output is correct
16 Correct 7 ms 5240 KB Output is correct
17 Correct 8 ms 5428 KB Output is correct
18 Correct 8 ms 5368 KB Output is correct
19 Correct 8 ms 5240 KB Output is correct
20 Correct 8 ms 5496 KB Output is correct
21 Correct 8 ms 5368 KB Output is correct
22 Correct 8 ms 5240 KB Output is correct
23 Correct 8 ms 5240 KB Output is correct
24 Correct 8 ms 5244 KB Output is correct
25 Correct 8 ms 5240 KB Output is correct
26 Correct 9 ms 5240 KB Output is correct
27 Correct 10 ms 5496 KB Output is correct
28 Correct 9 ms 5368 KB Output is correct
29 Correct 8 ms 5368 KB Output is correct
30 Correct 7 ms 5240 KB Output is correct
31 Correct 9 ms 5496 KB Output is correct
32 Correct 9 ms 5368 KB Output is correct
33 Correct 203 ms 12536 KB Output is correct
34 Correct 275 ms 28924 KB Output is correct
35 Correct 42 ms 8952 KB Output is correct
36 Correct 402 ms 17912 KB Output is correct
37 Correct 563 ms 46840 KB Output is correct
38 Correct 512 ms 32232 KB Output is correct
39 Correct 408 ms 18512 KB Output is correct
40 Correct 563 ms 20984 KB Output is correct
41 Correct 481 ms 19804 KB Output is correct
42 Correct 435 ms 19780 KB Output is correct
43 Correct 320 ms 21800 KB Output is correct
44 Correct 510 ms 36088 KB Output is correct
45 Correct 462 ms 32368 KB Output is correct
46 Correct 474 ms 31524 KB Output is correct
47 Correct 253 ms 21692 KB Output is correct
48 Correct 463 ms 38624 KB Output is correct
49 Correct 473 ms 32844 KB Output is correct
50 Correct 329 ms 16488 KB Output is correct
51 Correct 513 ms 47556 KB Output is correct
52 Correct 49 ms 9592 KB Output is correct
53 Correct 424 ms 19832 KB Output is correct
54 Correct 532 ms 49396 KB Output is correct
55 Correct 487 ms 34120 KB Output is correct
56 Correct 382 ms 19616 KB Output is correct
57 Correct 434 ms 25768 KB Output is correct
58 Correct 416 ms 23928 KB Output is correct
59 Correct 562 ms 21888 KB Output is correct
60 Correct 361 ms 21468 KB Output is correct
61 Correct 480 ms 43384 KB Output is correct
62 Correct 501 ms 31916 KB Output is correct
63 Correct 447 ms 32512 KB Output is correct
64 Correct 251 ms 22888 KB Output is correct
65 Correct 464 ms 40156 KB Output is correct
66 Correct 452 ms 34488 KB Output is correct
67 Correct 40 ms 6980 KB Output is correct
68 Correct 164 ms 23928 KB Output is correct
69 Correct 266 ms 22540 KB Output is correct
70 Correct 452 ms 18040 KB Output is correct
71 Correct 567 ms 47036 KB Output is correct
72 Correct 510 ms 32168 KB Output is correct
73 Correct 373 ms 18168 KB Output is correct
74 Correct 413 ms 23616 KB Output is correct
75 Correct 427 ms 20756 KB Output is correct
76 Correct 423 ms 20044 KB Output is correct
77 Correct 324 ms 19672 KB Output is correct
78 Correct 494 ms 39032 KB Output is correct
79 Correct 479 ms 35920 KB Output is correct
80 Correct 416 ms 29764 KB Output is correct
81 Correct 237 ms 21756 KB Output is correct
82 Correct 432 ms 38620 KB Output is correct
83 Correct 441 ms 32976 KB Output is correct
84 Correct 413 ms 18300 KB Output is correct
85 Correct 539 ms 47480 KB Output is correct
86 Correct 491 ms 32556 KB Output is correct
87 Correct 391 ms 18448 KB Output is correct
88 Correct 425 ms 24424 KB Output is correct
89 Correct 449 ms 21496 KB Output is correct
90 Correct 458 ms 20604 KB Output is correct
91 Correct 352 ms 20328 KB Output is correct
92 Correct 489 ms 46500 KB Output is correct
93 Correct 413 ms 28436 KB Output is correct
94 Correct 414 ms 25520 KB Output is correct
95 Correct 252 ms 22076 KB Output is correct
96 Correct 441 ms 38872 KB Output is correct
97 Correct 505 ms 33256 KB Output is correct
98 Correct 447 ms 19700 KB Output is correct
99 Correct 566 ms 47864 KB Output is correct
100 Correct 526 ms 33868 KB Output is correct
101 Correct 420 ms 19256 KB Output is correct
102 Correct 447 ms 23772 KB Output is correct
103 Correct 435 ms 21880 KB Output is correct
104 Correct 414 ms 20984 KB Output is correct
105 Correct 342 ms 20748 KB Output is correct
106 Correct 480 ms 35576 KB Output is correct
107 Correct 463 ms 35984 KB Output is correct
108 Correct 464 ms 28168 KB Output is correct
109 Correct 303 ms 22728 KB Output is correct
110 Correct 452 ms 39484 KB Output is correct
111 Correct 457 ms 34112 KB Output is correct