oj.uz

Submission #1080369

# Submission time Handle Problem Language Result Execution time Memory
1080369 2024-08-29T09:19:36 Z coldbr3w Long Mansion (JOI17_long_mansion) C++17
25 / 100
 3000 ms 115692 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll int
#define pll pair<int, int>
#define pb push_back
#define F first
#define S second  
#define all(x) (x).begin(), (x).end()
 
const ll N = 5e5 + 100;
const ll inf = 1e9;
const ll mod = 1e9 + 7;
const ll block = 230;
ll n, q;
ll c[N], pos[N];
ll L[N][20], R[N][20], l[N], r[N], lg[N];
struct segment_tree_max{
    ll n;
    vector<ll>st;
    void init(ll _n){
        n = _n;
        st.clear(); st.resize(4 * n + 10, -inf);
    }
    void update(ll id, ll l, ll r, ll left, ll right, ll val){
        if(l > right || r < left) return;
        if(left <= l && r <= right){
            st[id] = max(st[id], val);
            return;
        }
        ll mid = (l + r) / 2;
        update(2 * id, l, mid, left, right, val);
        update(2 * id + 1, mid + 1, r, left, right, val);
        st[id] = max(st[2 * id], st[2 * id + 1]);
    }
    ll get(ll id, ll l, ll r, ll left, ll right){
        if(l > right || r < left) return -inf;
        if(left <= l && r <= right) return st[id];
        ll mid = (l + r) / 2;
        return max(get(2 * id, l, mid, left, right), get(2 * id + 1, mid + 1, r, left, right));
    }
    void update(ll l, ll r, ll val){update(1,1,n,l,r,val);}
    ll get(ll l, ll r){return get(1,1,n,l,r);}
} stmax;
struct segment_tree_min{
    ll n;
    vector<ll>st;
    void init(ll _n){
        n = _n;
        st.clear(); st.resize(4 * n + 10, inf);
    }
    void update(ll id, ll l, ll r, ll left, ll right, ll val){
        if(l > right || r < left) return;
        if(left <= l && r <= right){
            st[id] = min(st[id], val);
            return;
        }
        ll mid = (l + r) / 2;
        update(2 * id, l, mid, left, right, val);
        update(2 * id + 1, mid + 1, r, left, right, val);
        st[id] = min(st[2 * id], st[2 * id + 1]);
    }
    ll get(ll id, ll l, ll r, ll left, ll right){
        if(l > right || r < left) return inf;
        if(left <= l && r <= right) return st[id];
        ll mid = (l + r) / 2;
        return min(get(2 * id, l, mid, left, right), get(2 * id + 1, mid + 1, r, left, right));
    }
    void update(ll l, ll r, ll val){update(1,1,n,l,r,val);}
    ll get(ll l, ll r){return get(1,1,n,l,r);}
} stmin;
vector<ll>g[N];
ll get_L(ll l, ll r){
	ll p = lg[r - l + 1];
	return min(L[l][p], L[r - (1 << p) + 1][p]);
}
ll get_R(ll l, ll r){
	ll p = lg[r - l + 1];
	return max(R[l][p], R[r - (1 << p) + 1][p]);
}
void build(){
	for(int i = 1; i <= n;i++){
		if(i >= 2) L[i][0] = (pos[c[i - 1]] == 0 ? -inf : pos[c[i-1]]);
		else L[i][0] = -inf;
		for(auto x : g[i]) pos[x] = i;
	}
	for(int i = 1; i <= n - 1;i++) pos[c[i]] = 0;
	for(int i = n; i >= 1;i--){
		if(i <= n - 1) R[i][0] = (pos[c[i]] == 0 ? inf : pos[c[i]]);
		else R[i][0] = inf;
		for(auto x : g[i]) pos[x] = i;
	}
	for(int j = 1; j <= 19;j++){
		for(int i = 1; i + (1 << j) <= n + 1;i++){
			L[i][j] = min(L[i][j-1], L[i + (1 << (j - 1))][j-1]);
			R[i][j] = max(R[i][j-1], R[i + (1 << (j - 1))][j-1]);
		}
	}
	for(int i = 1; i <= n;i++){
		ll x = i, y = i;
		ll cnt = 0;
		while(1){
			cnt++;
			assert(cnt <= n);
			pll lst = {x, y};
			if(x > 1){
				ll l = 1, r = x - 1, pos = -1;
				while(l <= r){
					ll mid = (l + r) / 2;
					if(get_R(mid, x - 1) <= y) pos = mid, r = mid - 1;
					else l = mid + 1;
				}
				if(pos != -1){
					ll mn = stmin.get(pos, y), mx = stmax.get(pos, y); 
					x = min({x, mn, pos}); y = max(y, mx);
				}
			}
			if(y < n){
				ll l = y + 1, r = n, pos = -1;
				while(l <= r){
					ll mid = (l + r) / 2;
					if(get_L(y + 1, mid) >= x) pos = mid, l = mid + 1;
					else r = mid - 1;
				}
				if(pos != -1){
					ll mn = stmin.get(x, pos), mx = stmax.get(x, pos); 
					x = min(x, mn); y = max({y, mx, pos});
				}	
			}
			if(lst.F == x && lst.S == y) break;	
		}
		l[i] = x, r[i] = y;
		stmin.update(i, i, l[i]); stmax.update(i, i, r[i]);
	}
}
void to_thic_cau(){
	cin >> n;
	for(int i = 1; i <= n;i++) lg[i] = __lg(i);
	for(int i = 1; i <= n - 1;i++) cin >> c[i];
	for(int i = 1; i <= n;i++){
		ll sz; cin >> sz;
		for(int j = 1; j <= sz;j++){
			ll x; cin >> x;
			g[i].pb(x);
		}
	}
	build();
	cin >> q;
	while(q--){
		ll x,y; cin >> x >> y;
		if(l[x] <= y && y <= r[x]) cout << "YES" << '\n';
		else cout << "NO" << "\n";
	}
}
 
signed main()   
{  
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	ll tc = 1;
	//cin >> tc;
	while(tc--) to_thic_cau();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 13148 KB Output is correct
2 Correct 7 ms 13400 KB Output is correct
3 Correct 7 ms 13916 KB Output is correct
4 Correct 6 ms 13404 KB Output is correct
5 Correct 9 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 18 ms 13380 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 13148 KB Output is correct
2 Correct 7 ms 13400 KB Output is correct
3 Correct 7 ms 13916 KB Output is correct
4 Correct 6 ms 13404 KB Output is correct
5 Correct 9 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 18 ms 13380 KB Output is correct
8 Correct 67 ms 14672 KB Output is correct
9 Correct 72 ms 14672 KB Output is correct
10 Correct 81 ms 15188 KB Output is correct
11 Correct 66 ms 15696 KB Output is correct
12 Correct 67 ms 14700 KB Output is correct
13 Correct 65 ms 14944 KB Output is correct
14 Correct 64 ms 14932 KB Output is correct
15 Correct 66 ms 14940 KB Output is correct
16 Correct 62 ms 15188 KB Output is correct
17 Correct 63 ms 14928 KB Output is correct
18 Correct 65 ms 14932 KB Output is correct
19 Correct 73 ms 15096 KB Output is correct
20 Correct 64 ms 15188 KB Output is correct
21 Correct 62 ms 15188 KB Output is correct
22 Correct 68 ms 15028 KB Output is correct
23 Correct 76 ms 14928 KB Output is correct
24 Correct 82 ms 14932 KB Output is correct
25 Correct 81 ms 14820 KB Output is correct
26 Correct 73 ms 14788 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 35156 KB Output is correct
2 Correct 140 ms 35408 KB Output is correct
3 Correct 138 ms 35152 KB Output is correct
4 Correct 164 ms 35152 KB Output is correct
5 Correct 169 ms 35168 KB Output is correct
6 Correct 128 ms 34644 KB Output is correct
7 Correct 114 ms 34900 KB Output is correct
8 Correct 114 ms 34756 KB Output is correct
9 Correct 117 ms 34772 KB Output is correct
10 Correct 111 ms 34896 KB Output is correct
11 Correct 109 ms 34896 KB Output is correct

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 13148 KB Output is correct
2 Correct 7 ms 13400 KB Output is correct
3 Correct 7 ms 13916 KB Output is correct
4 Correct 6 ms 13404 KB Output is correct
5 Correct 9 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 18 ms 13380 KB Output is correct
8 Correct 67 ms 14672 KB Output is correct
9 Correct 72 ms 14672 KB Output is correct
10 Correct 81 ms 15188 KB Output is correct
11 Correct 66 ms 15696 KB Output is correct
12 Correct 67 ms 14700 KB Output is correct
13 Correct 65 ms 14944 KB Output is correct
14 Correct 64 ms 14932 KB Output is correct
15 Correct 66 ms 14940 KB Output is correct
16 Correct 62 ms 15188 KB Output is correct
17 Correct 63 ms 14928 KB Output is correct
18 Correct 65 ms 14932 KB Output is correct
19 Correct 73 ms 15096 KB Output is correct
20 Correct 64 ms 15188 KB Output is correct
21 Correct 62 ms 15188 KB Output is correct
22 Correct 68 ms 15028 KB Output is correct
23 Correct 76 ms 14928 KB Output is correct
24 Correct 82 ms 14932 KB Output is correct
25 Correct 81 ms 14820 KB Output is correct
26 Correct 73 ms 14788 KB Output is correct
27 Correct 144 ms 35156 KB Output is correct
28 Correct 140 ms 35408 KB Output is correct
29 Correct 138 ms 35152 KB Output is correct
30 Correct 164 ms 35152 KB Output is correct
31 Correct 169 ms 35168 KB Output is correct
32 Correct 128 ms 34644 KB Output is correct
33 Correct 114 ms 34900 KB Output is correct
34 Correct 114 ms 34756 KB Output is correct
35 Correct 117 ms 34772 KB Output is correct
36 Correct 111 ms 34896 KB Output is correct
37 Correct 109 ms 34896 KB Output is correct
38 Correct 293 ms 95072 KB Output is correct
39 Correct 323 ms 115280 KB Output is correct
40 Correct 223 ms 74580 KB Output is correct
41 Correct 400 ms 115692 KB Output is correct
42 Correct 129 ms 34644 KB Output is correct
43 Correct 131 ms 34548 KB Output is correct
44 Correct 216 ms 54864 KB Output is correct
45 Correct 209 ms 55132 KB Output is correct
46 Correct 210 ms 55072 KB Output is correct
47 Correct 142 ms 34732 KB Output is correct
48 Correct 131 ms 34780 KB Output is correct
49 Correct 206 ms 54868 KB Output is correct
50 Correct 196 ms 54864 KB Output is correct
51 Correct 200 ms 55352 KB Output is correct
52 Execution timed out 3060 ms 52744 KB Time limit exceeded
53 Halted 0 ms 0 KB -