oj.uz

Submission #98133

# Submission time Handle Problem Language Result Execution time Memory
98133 2019-02-21T00:56:27 Z silxikys Long Mansion (JOI17_long_mansion) C++14
100 / 100
 1728 ms 52588 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int maxn = 5e5+5;
int n, Q, c[maxn], last[maxn], le[maxn], ri[maxn], st[maxn], en[maxn];
vector<int> q[maxn];

bool cleft(int i) {
    return st[i] > 1 && ri[st[i]-1] != -1 && ri[st[i]-1] <= en[i];
}

bool cright(int i) {
    return en[i] < n && le[en[i]] != -1 && st[i] <= le[en[i]];
}

int main()
{
    cin >> n;
    for (int i = 1; i < n; i++) cin >> c[i];
    for (int i = 1; i <= n; i++) {
        int x, y; cin >> x;
        while (x--) {
            cin >> y;
            q[i].push_back(y);
        }
    }
    memset(last,-1,sizeof(last));
    for (int i = 1; i < n; i++) {
        for (int j: q[i]) {
            last[j] = i;
        }
        le[i] = last[c[i]];
    }
    memset(last,-1,sizeof(last));
    for (int i = n - 1; i >= 1; i--) {
        for (int j: q[i+1]) {
            last[j] = i + 1;
        }
        ri[i] = last[c[i]];
    }
    for (int i = 1; i <= n; i++) {
        st[i] = en[i] = i;
        while (true) {
            if (cleft(i)) {
                en[i] = max(en[i],en[st[i]-1]);
                st[i] = min(st[i],st[st[i]-1]);
            }
            else if (cright(i)) ++en[i];
            else break;
        }
    }
    cin >> Q;
    while (Q--) {
        int a, b; cin >> a >> b;
        cout << (st[a] <= b && b <= en[a] ? "YES" : "NO") << '\n';
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 14200 KB Output is correct
2 Correct 30 ms 14208 KB Output is correct
3 Correct 35 ms 14328 KB Output is correct
4 Correct 35 ms 14208 KB Output is correct
5 Correct 26 ms 14208 KB Output is correct
6 Correct 29 ms 14336 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 14200 KB Output is correct
2 Correct 30 ms 14208 KB Output is correct
3 Correct 35 ms 14328 KB Output is correct
4 Correct 35 ms 14208 KB Output is correct
5 Correct 26 ms 14208 KB Output is correct
6 Correct 29 ms 14336 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct
8 Correct 1071 ms 16548 KB Output is correct
9 Correct 1066 ms 16532 KB Output is correct
10 Correct 1143 ms 16676 KB Output is correct
11 Correct 1022 ms 16868 KB Output is correct
12 Correct 944 ms 16740 KB Output is correct
13 Correct 1031 ms 16692 KB Output is correct
14 Correct 1012 ms 16680 KB Output is correct
15 Correct 1044 ms 16820 KB Output is correct
16 Correct 953 ms 16928 KB Output is correct
17 Correct 1016 ms 16656 KB Output is correct
18 Correct 1025 ms 16888 KB Output is correct
19 Correct 1117 ms 16656 KB Output is correct
20 Correct 1086 ms 16876 KB Output is correct
21 Correct 992 ms 16956 KB Output is correct
22 Correct 989 ms 16556 KB Output is correct
23 Correct 953 ms 16504 KB Output is correct
24 Correct 1072 ms 16536 KB Output is correct
25 Correct 996 ms 16632 KB Output is correct
26 Correct 1067 ms 16628 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1447 ms 22276 KB Output is correct
2 Correct 1399 ms 28884 KB Output is correct
3 Correct 1297 ms 28396 KB Output is correct
4 Correct 1499 ms 28720 KB Output is correct
5 Correct 1501 ms 28784 KB Output is correct
6 Correct 1220 ms 27444 KB Output is correct
7 Correct 1114 ms 27356 KB Output is correct
8 Correct 1225 ms 27256 KB Output is correct
9 Correct 1216 ms 27460 KB Output is correct
10 Correct 1387 ms 27224 KB Output is correct
11 Correct 1208 ms 27288 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 14200 KB Output is correct
2 Correct 30 ms 14208 KB Output is correct
3 Correct 35 ms 14328 KB Output is correct
4 Correct 35 ms 14208 KB Output is correct
5 Correct 26 ms 14208 KB Output is correct
6 Correct 29 ms 14336 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct
8 Correct 1071 ms 16548 KB Output is correct
9 Correct 1066 ms 16532 KB Output is correct
10 Correct 1143 ms 16676 KB Output is correct
11 Correct 1022 ms 16868 KB Output is correct
12 Correct 944 ms 16740 KB Output is correct
13 Correct 1031 ms 16692 KB Output is correct
14 Correct 1012 ms 16680 KB Output is correct
15 Correct 1044 ms 16820 KB Output is correct
16 Correct 953 ms 16928 KB Output is correct
17 Correct 1016 ms 16656 KB Output is correct
18 Correct 1025 ms 16888 KB Output is correct
19 Correct 1117 ms 16656 KB Output is correct
20 Correct 1086 ms 16876 KB Output is correct
21 Correct 992 ms 16956 KB Output is correct
22 Correct 989 ms 16556 KB Output is correct
23 Correct 953 ms 16504 KB Output is correct
24 Correct 1072 ms 16536 KB Output is correct
25 Correct 996 ms 16632 KB Output is correct
26 Correct 1067 ms 16628 KB Output is correct
27 Correct 1447 ms 22276 KB Output is correct
28 Correct 1399 ms 28884 KB Output is correct
29 Correct 1297 ms 28396 KB Output is correct
30 Correct 1499 ms 28720 KB Output is correct
31 Correct 1501 ms 28784 KB Output is correct
32 Correct 1220 ms 27444 KB Output is correct
33 Correct 1114 ms 27356 KB Output is correct
34 Correct 1225 ms 27256 KB Output is correct
35 Correct 1216 ms 27460 KB Output is correct
36 Correct 1387 ms 27224 KB Output is correct
37 Correct 1208 ms 27288 KB Output is correct
38 Correct 1594 ms 47752 KB Output is correct
39 Correct 1728 ms 52588 KB Output is correct
40 Correct 1500 ms 41348 KB Output is correct
41 Correct 1598 ms 51028 KB Output is correct
42 Correct 1174 ms 28376 KB Output is correct
43 Correct 1317 ms 28484 KB Output is correct
44 Correct 1426 ms 36140 KB Output is correct
45 Correct 1337 ms 36172 KB Output is correct
46 Correct 1396 ms 36472 KB Output is correct
47 Correct 1263 ms 28460 KB Output is correct
48 Correct 1273 ms 28280 KB Output is correct
49 Correct 1397 ms 36196 KB Output is correct
50 Correct 1470 ms 36312 KB Output is correct
51 Correct 1565 ms 36576 KB Output is correct
52 Correct 1419 ms 35080 KB Output is correct
53 Correct 1677 ms 41920 KB Output is correct
54 Correct 1607 ms 48428 KB Output is correct
55 Correct 1505 ms 42156 KB Output is correct