oj.uz

Submission #1080310

# Submission time Handle Problem Language Result Execution time Memory
1080310 2024-08-29T08:46:49 Z coldbr3w Long Mansion (JOI17_long_mansion) C++17
25 / 100
 3000 ms 124756 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];
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 = 31 - __builtin_clz(r - l + 1);
	return min(L[l][p], L[r - (1 << p) + 1][p]);
}
ll get_R(ll l, ll r){
	ll p = 31 - __builtin_clz(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;
		while(1){
			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 - 1;i++) cin >> c[i];
	for(int i = 1; i <= n;i++){
		ll sz; cin >> sz;
		while(sz--){
			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 4 ms 13404 KB Output is correct
2 Correct 5 ms 13404 KB Output is correct
3 Correct 6 ms 13916 KB Output is correct
4 Correct 6 ms 13400 KB Output is correct
5 Correct 5 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 20 ms 13404 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13404 KB Output is correct
2 Correct 5 ms 13404 KB Output is correct
3 Correct 6 ms 13916 KB Output is correct
4 Correct 6 ms 13400 KB Output is correct
5 Correct 5 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 20 ms 13404 KB Output is correct
8 Correct 69 ms 19000 KB Output is correct
9 Correct 71 ms 19024 KB Output is correct
10 Correct 69 ms 19704 KB Output is correct
11 Correct 68 ms 20248 KB Output is correct
12 Correct 61 ms 18676 KB Output is correct
13 Correct 71 ms 19280 KB Output is correct
14 Correct 97 ms 19280 KB Output is correct
15 Correct 67 ms 19280 KB Output is correct
16 Correct 61 ms 18512 KB Output is correct
17 Correct 109 ms 18772 KB Output is correct
18 Correct 69 ms 19280 KB Output is correct
19 Correct 76 ms 19236 KB Output is correct
20 Correct 70 ms 19276 KB Output is correct
21 Correct 64 ms 19228 KB Output is correct
22 Correct 67 ms 19288 KB Output is correct
23 Correct 81 ms 19024 KB Output is correct
24 Correct 83 ms 19028 KB Output is correct
25 Correct 81 ms 19028 KB Output is correct
26 Correct 76 ms 19028 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 42068 KB Output is correct
2 Correct 156 ms 41808 KB Output is correct
3 Correct 138 ms 41548 KB Output is correct
4 Correct 146 ms 41988 KB Output is correct
5 Correct 140 ms 41808 KB Output is correct
6 Correct 131 ms 40532 KB Output is correct
7 Correct 120 ms 40524 KB Output is correct
8 Correct 112 ms 40416 KB Output is correct
9 Correct 122 ms 40528 KB Output is correct
10 Correct 114 ms 40528 KB Output is correct
11 Correct 116 ms 40528 KB Output is correct

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13404 KB Output is correct
2 Correct 5 ms 13404 KB Output is correct
3 Correct 6 ms 13916 KB Output is correct
4 Correct 6 ms 13400 KB Output is correct
5 Correct 5 ms 13404 KB Output is correct
6 Correct 6 ms 13404 KB Output is correct
7 Correct 20 ms 13404 KB Output is correct
8 Correct 69 ms 19000 KB Output is correct
9 Correct 71 ms 19024 KB Output is correct
10 Correct 69 ms 19704 KB Output is correct
11 Correct 68 ms 20248 KB Output is correct
12 Correct 61 ms 18676 KB Output is correct
13 Correct 71 ms 19280 KB Output is correct
14 Correct 97 ms 19280 KB Output is correct
15 Correct 67 ms 19280 KB Output is correct
16 Correct 61 ms 18512 KB Output is correct
17 Correct 109 ms 18772 KB Output is correct
18 Correct 69 ms 19280 KB Output is correct
19 Correct 76 ms 19236 KB Output is correct
20 Correct 70 ms 19276 KB Output is correct
21 Correct 64 ms 19228 KB Output is correct
22 Correct 67 ms 19288 KB Output is correct
23 Correct 81 ms 19024 KB Output is correct
24 Correct 83 ms 19028 KB Output is correct
25 Correct 81 ms 19028 KB Output is correct
26 Correct 76 ms 19028 KB Output is correct
27 Correct 154 ms 42068 KB Output is correct
28 Correct 156 ms 41808 KB Output is correct
29 Correct 138 ms 41548 KB Output is correct
30 Correct 146 ms 41988 KB Output is correct
31 Correct 140 ms 41808 KB Output is correct
32 Correct 131 ms 40532 KB Output is correct
33 Correct 120 ms 40524 KB Output is correct
34 Correct 112 ms 40416 KB Output is correct
35 Correct 122 ms 40528 KB Output is correct
36 Correct 114 ms 40528 KB Output is correct
37 Correct 116 ms 40528 KB Output is correct
38 Correct 295 ms 105044 KB Output is correct
39 Correct 318 ms 124756 KB Output is correct
40 Correct 250 ms 84148 KB Output is correct
41 Correct 375 ms 123220 KB Output is correct
42 Correct 143 ms 41812 KB Output is correct
43 Correct 134 ms 41808 KB Output is correct
44 Correct 219 ms 64336 KB Output is correct
45 Correct 217 ms 64336 KB Output is correct
46 Correct 215 ms 64592 KB Output is correct
47 Correct 142 ms 41772 KB Output is correct
48 Correct 131 ms 41500 KB Output is correct
49 Correct 213 ms 63896 KB Output is correct
50 Correct 220 ms 64136 KB Output is correct
51 Correct 213 ms 64868 KB Output is correct
52 Execution timed out 3012 ms 55548 KB Time limit exceeded
53 Halted 0 ms 0 KB -