oj.uz

답안 #552132

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
552132 2022-04-22T13:20:38 Z errorgorn Jail (JOI22_jail) C++17
61 / 100
 5000 ms 36684 KB 
// Super Idol的笑容
//    都没你的甜
//  八月正午的阳光
//    都没你耀眼
//  热爱105°C的你
// 滴滴清纯的蒸馏水

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;

#define int long long
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << ": " << x << endl

#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define ub upper_bound

#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
//change less to less_equal for non distinct pbds, but erase will bug

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int n,q;
vector<int> al[120005];
ii arr[120005];

int d[120005];
int tkd[120005][19];

void dfs(int i,int p){
	for (auto it:al[i]){
		if (it==p) continue;
		
		d[it]=d[i]+1;
		int curr=tkd[it][0]=i;
		rep(x,0,19){
			if (curr==-1) continue;
			curr=tkd[it][x+1]=tkd[curr][x];
		}
		dfs(it,i);
	}
}

int mov(int i,int k){
	rep(x,0,19) if (k&(1<<x)) i=tkd[i][x];
	return i;
}

int lca(int i,int j){
	if (d[i]<d[j]) swap(i,j);
	i=mov(i,d[i]-d[j]);
	if (i==j) return i;
	
	rep(x,19,0) if (tkd[i][x]!=tkd[j][x]){
		i=tkd[i][x];
		j=tkd[j][x];
	}
	
	return tkd[i][0];
}

int dist(int i,int j){
	int g=lca(i,j);
	return d[i]+d[j]-2*d[g];
}

int vis[120005];
bool cyc;
void dfs2(int i){
	vis[i]=1;
	
	for (auto it:al[i]){
		if (vis[it]==1) cyc=true;
		if (vis[it]==0) dfs2(it);
	}
	
	vis[i]=2;
}

signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin.exceptions(ios::badbit | ios::failbit);
	
	int TC;
	cin>>TC;
	while (TC--){
		cin>>n;
		
		rep(x,1,n+1) al[x].clear();
		
		int a,b;
		rep(x,1,n){
			cin>>a>>b;
			al[a].pub(b);
			al[b].pub(a);
		}
		
		rep(x,1,n+1) rep(y,0,19) tkd[x][y]=-1;
		dfs(1,-1);
		
		cin>>q;
		rep(x,0,q){
			cin>>a>>b;
			arr[x]={a,b};
		}
		
		rep(x,0,q) al[x].clear();
		rep(x,0,q) rep(y,0,q) if (x!=y){
			//must we put x before y
			
			int d=dist(arr[x].fi,arr[x].se);
			
			if (dist(arr[x].fi,arr[y].fi)+dist(arr[y].fi,arr[x].se)==d){
				al[x].pub(y);
			}
			if (dist(arr[x].fi,arr[y].se)+dist(arr[y].se,arr[x].se)==d){
				al[y].pub(x);
			}
		}
		
		cyc=false;
		rep(x,0,q) vis[x]=0;
		rep(x,0,q) if (vis[x]==0) dfs2(x);
		
		if (!cyc) cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 13 ms 3284 KB Output is correct
5 Correct 20 ms 3320 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3156 KB Output is correct
8 Correct 53 ms 3360 KB Output is correct
9 Correct 1504 ms 9096 KB Output is correct
10 Correct 137 ms 36172 KB Output is correct
11 Correct 20 ms 3284 KB Output is correct
12 Correct 511 ms 3988 KB Output is correct
13 Execution timed out 5025 ms 34848 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 4 ms 3156 KB Output is correct
4 Correct 3 ms 3156 KB Output is correct
5 Correct 3 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3160 KB Output is correct
8 Correct 3 ms 3156 KB Output is correct
9 Correct 3 ms 3156 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 3 ms 3156 KB Output is correct
12 Correct 3 ms 3156 KB Output is correct
13 Correct 3 ms 3236 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 4 ms 3156 KB Output is correct
4 Correct 3 ms 3156 KB Output is correct
5 Correct 3 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3160 KB Output is correct
8 Correct 3 ms 3156 KB Output is correct
9 Correct 3 ms 3156 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 3 ms 3156 KB Output is correct
12 Correct 3 ms 3156 KB Output is correct
13 Correct 3 ms 3236 KB Output is correct
14 Correct 2 ms 3156 KB Output is correct
15 Correct 2 ms 3156 KB Output is correct
16 Correct 3 ms 3156 KB Output is correct
17 Correct 3 ms 3156 KB Output is correct
18 Correct 3 ms 3156 KB Output is correct
19 Correct 2 ms 3144 KB Output is correct
20 Correct 3 ms 3152 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 2 ms 3156 KB Output is correct
25 Correct 4 ms 3156 KB Output is correct
26 Correct 3 ms 3148 KB Output is correct
27 Correct 3 ms 3156 KB Output is correct
28 Correct 2 ms 3156 KB Output is correct

Subtask #4
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 4 ms 3156 KB Output is correct
4 Correct 3 ms 3156 KB Output is correct
5 Correct 3 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3160 KB Output is correct
8 Correct 3 ms 3156 KB Output is correct
9 Correct 3 ms 3156 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 3 ms 3156 KB Output is correct
12 Correct 3 ms 3156 KB Output is correct
13 Correct 3 ms 3236 KB Output is correct
14 Correct 2 ms 3156 KB Output is correct
15 Correct 2 ms 3156 KB Output is correct
16 Correct 3 ms 3156 KB Output is correct
17 Correct 3 ms 3156 KB Output is correct
18 Correct 3 ms 3156 KB Output is correct
19 Correct 2 ms 3144 KB Output is correct
20 Correct 3 ms 3152 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 2 ms 3156 KB Output is correct
25 Correct 4 ms 3156 KB Output is correct
26 Correct 3 ms 3148 KB Output is correct
27 Correct 3 ms 3156 KB Output is correct
28 Correct 2 ms 3156 KB Output is correct
29 Correct 62 ms 3408 KB Output is correct
30 Correct 66 ms 3264 KB Output is correct
31 Correct 58 ms 3296 KB Output is correct
32 Correct 26 ms 3220 KB Output is correct
33 Correct 7 ms 3156 KB Output is correct
34 Correct 107 ms 3384 KB Output is correct
35 Correct 112 ms 3356 KB Output is correct
36 Correct 108 ms 3196 KB Output is correct
37 Correct 59 ms 3248 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 4 ms 3156 KB Output is correct
4 Correct 3 ms 3156 KB Output is correct
5 Correct 3 ms 3156 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3160 KB Output is correct
8 Correct 3 ms 3156 KB Output is correct
9 Correct 3 ms 3156 KB Output is correct
10 Correct 4 ms 3156 KB Output is correct
11 Correct 3 ms 3156 KB Output is correct
12 Correct 3 ms 3156 KB Output is correct
13 Correct 3 ms 3236 KB Output is correct
14 Correct 2 ms 3156 KB Output is correct
15 Correct 2 ms 3156 KB Output is correct
16 Correct 3 ms 3156 KB Output is correct
17 Correct 3 ms 3156 KB Output is correct
18 Correct 3 ms 3156 KB Output is correct
19 Correct 2 ms 3144 KB Output is correct
20 Correct 3 ms 3152 KB Output is correct
21 Correct 4 ms 3156 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 2 ms 3156 KB Output is correct
25 Correct 4 ms 3156 KB Output is correct
26 Correct 3 ms 3148 KB Output is correct
27 Correct 3 ms 3156 KB Output is correct
28 Correct 2 ms 3156 KB Output is correct
29 Correct 62 ms 3408 KB Output is correct
30 Correct 66 ms 3264 KB Output is correct
31 Correct 58 ms 3296 KB Output is correct
32 Correct 26 ms 3220 KB Output is correct
33 Correct 7 ms 3156 KB Output is correct
34 Correct 107 ms 3384 KB Output is correct
35 Correct 112 ms 3356 KB Output is correct
36 Correct 108 ms 3196 KB Output is correct
37 Correct 59 ms 3248 KB Output is correct
38 Correct 1593 ms 9104 KB Output is correct
39 Correct 146 ms 36684 KB Output is correct
40 Correct 2848 ms 7812 KB Output is correct
41 Correct 2847 ms 5720 KB Output is correct
42 Correct 2730 ms 7960 KB Output is correct
43 Correct 51 ms 5572 KB Output is correct
44 Correct 2623 ms 4128 KB Output is correct
45 Correct 318 ms 27664 KB Output is correct
46 Correct 312 ms 27700 KB Output is correct
47 Correct 398 ms 31184 KB Output is correct
48 Correct 411 ms 31436 KB Output is correct
49 Correct 314 ms 27848 KB Output is correct
50 Correct 325 ms 27668 KB Output is correct
51 Correct 93 ms 27776 KB Output is correct
52 Correct 104 ms 28740 KB Output is correct
53 Correct 2380 ms 4872 KB Output is correct
54 Correct 262 ms 28272 KB Output is correct

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 2 ms 3148 KB Output is correct
5 Correct 19 ms 3288 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct
7 Correct 2 ms 3156 KB Output is correct
8 Correct 2 ms 3156 KB Output is correct
9 Correct 3 ms 3148 KB Output is correct
10 Correct 2 ms 3156 KB Output is correct
11 Correct 2 ms 3156 KB Output is correct
12 Correct 103 ms 3228 KB Output is correct
13 Correct 1083 ms 3844 KB Output is correct
14 Correct 485 ms 3964 KB Output is correct
15 Correct 818 ms 3796 KB Output is correct
16 Execution timed out 5036 ms 27752 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 13 ms 3284 KB Output is correct
5 Correct 20 ms 3320 KB Output is correct
6 Correct 3 ms 3156 KB Output is correct
7 Correct 3 ms 3156 KB Output is correct
8 Correct 53 ms 3360 KB Output is correct
9 Correct 1504 ms 9096 KB Output is correct
10 Correct 137 ms 36172 KB Output is correct
11 Correct 20 ms 3284 KB Output is correct
12 Correct 511 ms 3988 KB Output is correct
13 Execution timed out 5025 ms 34848 KB Time limit exceeded
14 Halted 0 ms 0 KB -