oj.uz

Submission #631931

# Submission time Handle Problem Language Result Execution time Memory
631931 2022-08-19T07:45:08 Z S2speed Jail (JOI22_jail) C++17
66 / 100
 5000 ms 48616 KB 
#include<bits/stdc++.h>

using namespace std;

#pragma GCC optimize ("Ofast")

#define all(x) x.begin() , x.end()
typedef long long ll;
typedef pair<ll , ll> pll;

const ll maxn = 2e5 + 17 , inf = 2e16;

vector<ll> adj[maxn];
ll jad[maxn][20] , bt[maxn] , ft[maxn] , tme , dis[maxn] , dep = 0;

void jDFS(ll r , ll par){
	bt[r] = tme++;
	dis[r] = dep++;
	jad[r][0] = par;
	for(ll j = 1 ; j < 20 ; j++){
		if(jad[r][j - 1] == -1) break;
		jad[r][j] = jad[jad[r][j - 1]][j - 1];
	}
	for(auto i : adj[r]){
		if(i == par) continue;
		jDFS(i , r);
	}
	ft[r] = tme;
	dep--;
	return;
}

ll find_jad(ll v , ll d){
	d = dis[v] - d;
	for(ll j = 19 ; ~j ; j--){
		if(d & (1 << j)){
			v = jad[v][j];
		}
	}
	return v;
}

bool too_masir(ll v , ll u , ll k){
	bool zv = (bt[v] >= bt[k] && ft[v] <= ft[k]) , zu = (bt[u] >= bt[k] && ft[u] <= ft[k]);
	if(!zv && !zu) return false;
	if(zv ^ zu) return true;
	ll hv = find_jad(v , dis[k] + 1) , hu = find_jad(u , dis[k] + 1);
	return (hv != hu);
}

ll n , m;
ll a[maxn] , b[maxn] , d[maxn];
vector<ll> jda[maxn];
priority_queue<pll , vector<pll> , greater<pll>> pq;
vector<pll> s1;

bool sub1(){
	s1.clear();
	for(ll i = 0 ; i < m ; i++){
		s1.push_back({a[i] , b[i]});
	}
	sort(all(s1));
	for(ll i = 1 ; i < m ; i++){
		if(s1[i].second < s1[i - 1].second) return false;
	}
	return true;
}

void solve(){
	while(!pq.empty()) pq.pop();
	tme = 0;
	cin>>n;
	for(ll i = 0 ; i < n ; i++){
		adj[i].clear(); jda[i].clear(); d[i] = 0;
		for(ll j = 0 ; j < 20 ; j++) jad[i][j] = -1;
	}
	bool c = true;
	for(ll i = 1 ; i < n ; i++){
		ll v , u;
		cin>>v>>u; v--; u--;
		adj[v].push_back(u); adj[u].push_back(v);
		c &= (v == i - 1 && u == i);
	}
	jDFS(0 , -1);
	cin>>m;
	for(ll i = 0 ; i < m ; i++){
		cin>>a[i]>>b[i]; a[i]--; b[i]--;
	}
	if(c){
		cout<<(sub1() ? "Yes\n" : "No\n");
		return;
	}
	for(ll i = 0 ; i < m ; i++){
		for(ll j = 0 ; j < m ; j++){
			if(j == i) continue;
			if(too_masir(a[i] , b[i] , a[j])){
				jda[i].push_back(j); d[j]++;
			}
			if(too_masir(a[i] , b[i] , b[j])){
				jda[j].push_back(i); d[i]++;
			}
		}
	}
	for(ll i = 0 ; i < m ; i++){
		pq.push({d[i] , i});
	}
	while(!pq.empty()){
		pll p = pq.top(); pq.pop();
		ll v = p.second;
		if(d[v] != p.first) continue;
		if(d[v] != 0){
			cout<<"No\n";
			return;
		}
		for(auto i : jda[v]){
			d[i]--;
			pq.push({d[i] , i});
		}
	}
	cout<<"Yes\n";
	return;
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	ll T;
	cin>>T;
	while(T--) solve();
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 13 ms 9684 KB Output is correct
5 Correct 20 ms 9684 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 28 ms 11276 KB Output is correct
10 Correct 59 ms 41652 KB Output is correct
11 Correct 8 ms 9684 KB Output is correct
12 Correct 25 ms 9684 KB Output is correct
13 Correct 77 ms 43552 KB Output is correct
14 Correct 76 ms 45536 KB Output is correct
15 Correct 67 ms 45580 KB Output is correct
16 Correct 85 ms 48576 KB Output is correct
17 Correct 69 ms 45912 KB Output is correct
18 Correct 81 ms 48616 KB Output is correct
19 Correct 66 ms 45832 KB Output is correct
20 Correct 67 ms 45804 KB Output is correct
21 Correct 69 ms 45796 KB Output is correct
22 Correct 66 ms 45868 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9816 KB Output is correct
6 Correct 6 ms 9768 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9820 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9812 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9812 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9816 KB Output is correct
6 Correct 6 ms 9768 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9820 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9812 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9812 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9812 KB Output is correct
17 Correct 6 ms 9812 KB Output is correct
18 Correct 6 ms 9812 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 6 ms 9812 KB Output is correct
21 Correct 8 ms 9808 KB Output is correct
22 Correct 6 ms 9812 KB Output is correct
23 Correct 6 ms 9684 KB Output is correct
24 Correct 7 ms 9684 KB Output is correct
25 Correct 7 ms 9684 KB Output is correct
26 Correct 5 ms 9812 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 7 ms 9684 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9816 KB Output is correct
6 Correct 6 ms 9768 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9820 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9812 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9812 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9812 KB Output is correct
17 Correct 6 ms 9812 KB Output is correct
18 Correct 6 ms 9812 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 6 ms 9812 KB Output is correct
21 Correct 8 ms 9808 KB Output is correct
22 Correct 6 ms 9812 KB Output is correct
23 Correct 6 ms 9684 KB Output is correct
24 Correct 7 ms 9684 KB Output is correct
25 Correct 7 ms 9684 KB Output is correct
26 Correct 5 ms 9812 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 7 ms 9684 KB Output is correct
29 Correct 7 ms 9812 KB Output is correct
30 Correct 9 ms 9812 KB Output is correct
31 Correct 9 ms 9812 KB Output is correct
32 Correct 7 ms 9812 KB Output is correct
33 Correct 6 ms 9812 KB Output is correct
34 Correct 9 ms 9812 KB Output is correct
35 Correct 11 ms 10068 KB Output is correct
36 Correct 9 ms 9812 KB Output is correct
37 Correct 9 ms 9856 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9812 KB Output is correct
4 Correct 6 ms 9812 KB Output is correct
5 Correct 7 ms 9816 KB Output is correct
6 Correct 6 ms 9768 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 8 ms 9820 KB Output is correct
10 Correct 5 ms 9812 KB Output is correct
11 Correct 5 ms 9812 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9812 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9684 KB Output is correct
16 Correct 6 ms 9812 KB Output is correct
17 Correct 6 ms 9812 KB Output is correct
18 Correct 6 ms 9812 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 6 ms 9812 KB Output is correct
21 Correct 8 ms 9808 KB Output is correct
22 Correct 6 ms 9812 KB Output is correct
23 Correct 6 ms 9684 KB Output is correct
24 Correct 7 ms 9684 KB Output is correct
25 Correct 7 ms 9684 KB Output is correct
26 Correct 5 ms 9812 KB Output is correct
27 Correct 6 ms 9812 KB Output is correct
28 Correct 7 ms 9684 KB Output is correct
29 Correct 7 ms 9812 KB Output is correct
30 Correct 9 ms 9812 KB Output is correct
31 Correct 9 ms 9812 KB Output is correct
32 Correct 7 ms 9812 KB Output is correct
33 Correct 6 ms 9812 KB Output is correct
34 Correct 9 ms 9812 KB Output is correct
35 Correct 11 ms 10068 KB Output is correct
36 Correct 9 ms 9812 KB Output is correct
37 Correct 9 ms 9856 KB Output is correct
38 Correct 34 ms 11344 KB Output is correct
39 Correct 64 ms 41680 KB Output is correct
40 Correct 211 ms 13476 KB Output is correct
41 Correct 101 ms 11252 KB Output is correct
42 Correct 126 ms 13664 KB Output is correct
43 Correct 33 ms 11488 KB Output is correct
44 Correct 60 ms 10464 KB Output is correct
45 Correct 70 ms 36596 KB Output is correct
46 Correct 66 ms 36568 KB Output is correct
47 Correct 66 ms 39308 KB Output is correct
48 Correct 67 ms 39320 KB Output is correct
49 Correct 67 ms 36664 KB Output is correct
50 Correct 65 ms 36652 KB Output is correct
51 Correct 61 ms 37452 KB Output is correct
52 Correct 68 ms 37512 KB Output is correct
53 Correct 73 ms 11712 KB Output is correct
54 Correct 111 ms 37284 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9788 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 9 ms 9684 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 5 ms 9812 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 8 ms 9812 KB Output is correct
13 Correct 54 ms 9888 KB Output is correct
14 Correct 46 ms 9800 KB Output is correct
15 Correct 50 ms 9844 KB Output is correct
16 Correct 1864 ms 37848 KB Output is correct
17 Execution timed out 5065 ms 38652 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 13 ms 9684 KB Output is correct
5 Correct 20 ms 9684 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9812 KB Output is correct
8 Correct 6 ms 9812 KB Output is correct
9 Correct 28 ms 11276 KB Output is correct
10 Correct 59 ms 41652 KB Output is correct
11 Correct 8 ms 9684 KB Output is correct
12 Correct 25 ms 9684 KB Output is correct
13 Correct 77 ms 43552 KB Output is correct
14 Correct 76 ms 45536 KB Output is correct
15 Correct 67 ms 45580 KB Output is correct
16 Correct 85 ms 48576 KB Output is correct
17 Correct 69 ms 45912 KB Output is correct
18 Correct 81 ms 48616 KB Output is correct
19 Correct 66 ms 45832 KB Output is correct
20 Correct 67 ms 45804 KB Output is correct
21 Correct 69 ms 45796 KB Output is correct
22 Correct 66 ms 45868 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 6 ms 9812 KB Output is correct
26 Correct 6 ms 9812 KB Output is correct
27 Correct 7 ms 9816 KB Output is correct
28 Correct 6 ms 9768 KB Output is correct
29 Correct 7 ms 9812 KB Output is correct
30 Correct 6 ms 9812 KB Output is correct
31 Correct 8 ms 9820 KB Output is correct
32 Correct 5 ms 9812 KB Output is correct
33 Correct 5 ms 9812 KB Output is correct
34 Correct 5 ms 9812 KB Output is correct
35 Correct 5 ms 9812 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 5 ms 9684 KB Output is correct
38 Correct 6 ms 9812 KB Output is correct
39 Correct 6 ms 9812 KB Output is correct
40 Correct 6 ms 9812 KB Output is correct
41 Correct 5 ms 9684 KB Output is correct
42 Correct 6 ms 9812 KB Output is correct
43 Correct 8 ms 9808 KB Output is correct
44 Correct 6 ms 9812 KB Output is correct
45 Correct 6 ms 9684 KB Output is correct
46 Correct 7 ms 9684 KB Output is correct
47 Correct 7 ms 9684 KB Output is correct
48 Correct 5 ms 9812 KB Output is correct
49 Correct 6 ms 9812 KB Output is correct
50 Correct 7 ms 9684 KB Output is correct
51 Correct 7 ms 9812 KB Output is correct
52 Correct 9 ms 9812 KB Output is correct
53 Correct 9 ms 9812 KB Output is correct
54 Correct 7 ms 9812 KB Output is correct
55 Correct 6 ms 9812 KB Output is correct
56 Correct 9 ms 9812 KB Output is correct
57 Correct 11 ms 10068 KB Output is correct
58 Correct 9 ms 9812 KB Output is correct
59 Correct 9 ms 9856 KB Output is correct
60 Correct 34 ms 11344 KB Output is correct
61 Correct 64 ms 41680 KB Output is correct
62 Correct 211 ms 13476 KB Output is correct
63 Correct 101 ms 11252 KB Output is correct
64 Correct 126 ms 13664 KB Output is correct
65 Correct 33 ms 11488 KB Output is correct
66 Correct 60 ms 10464 KB Output is correct
67 Correct 70 ms 36596 KB Output is correct
68 Correct 66 ms 36568 KB Output is correct
69 Correct 66 ms 39308 KB Output is correct
70 Correct 67 ms 39320 KB Output is correct
71 Correct 67 ms 36664 KB Output is correct
72 Correct 65 ms 36652 KB Output is correct
73 Correct 61 ms 37452 KB Output is correct
74 Correct 68 ms 37512 KB Output is correct
75 Correct 73 ms 11712 KB Output is correct
76 Correct 111 ms 37284 KB Output is correct
77 Correct 5 ms 9684 KB Output is correct
78 Correct 6 ms 9788 KB Output is correct
79 Correct 5 ms 9684 KB Output is correct
80 Correct 5 ms 9684 KB Output is correct
81 Correct 9 ms 9684 KB Output is correct
82 Correct 6 ms 9812 KB Output is correct
83 Correct 5 ms 9812 KB Output is correct
84 Correct 5 ms 9684 KB Output is correct
85 Correct 5 ms 9684 KB Output is correct
86 Correct 5 ms 9684 KB Output is correct
87 Correct 5 ms 9684 KB Output is correct
88 Correct 8 ms 9812 KB Output is correct
89 Correct 54 ms 9888 KB Output is correct
90 Correct 46 ms 9800 KB Output is correct
91 Correct 50 ms 9844 KB Output is correct
92 Correct 1864 ms 37848 KB Output is correct
93 Execution timed out 5065 ms 38652 KB Time limit exceeded
94 Halted 0 ms 0 KB -