oj.uz

Submission #684332

# Submission time Handle Problem Language Result Execution time Memory
684332 2023-01-20T22:25:57 Z stevancv Long Mansion (JOI17_long_mansion) C++14
100 / 100
 224 ms 48076 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 5e5 + 2;
const int inf = 1e9;
int c[N], le[N], ri[N], l[N], r[N], lst[N];
vector<int> b[N];
bool Between(int L, int R, int x) {
    return L <= x && x <= R;
}
bool Can(int L, int R, int x) {
    return Between(L, R, le[x]) || Between(L, R, ri[x]);
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n; cin >> n;
    for (int i = 1; i < n; i++) cin >> c[i];
    for (int i = 1; i <= n; i++) {
        int sz; cin >> sz;
        b[i].resize(sz);
        for (int j = 0; j < sz; j++) cin >> b[i][j];
    }
    for (int i = 1; i < n; i++) {
        for (int j = 0; j < b[i].size(); j++) lst[b[i][j]] = i;
        le[i] = lst[c[i]];
    }
    for (int i = 1; i <= n; i++) lst[i] = 0;
    for (int i = n; i > 1; i--) {
        for (int j = 0; j < b[i].size(); j++) lst[b[i][j]] = i;
        ri[i - 1] = lst[c[i - 1]];
    }
    for (int i = 1; i <= n; i++) {
        l[i] = r[i] = i;
        while (1) {
            if (l[i] > 1 && Can(l[i], r[i], l[i] - 1)) {
                smax(r[i], r[l[i] - 1]);
                l[i] = l[l[i] - 1];
            }
            else if (r[i] < n && Can(l[i], r[i], r[i])) r[i]++;
            else break;
        }
    }
    int q; cin >> q;
    while (q--) {
        int x, y;
        cin >> x >> y;
        if (Between(l[x], r[x], y)) cout << "YES" << en;
        else cout << "NO" << en;
    }
    return 0;
}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:31:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for (int j = 0; j < b[i].size(); j++) lst[b[i][j]] = i;
      |                         ~~^~~~~~~~~~~~~
long_mansion.cpp:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (int j = 0; j < b[i].size(); j++) lst[b[i][j]] = i;
      |                         ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 7 ms 12244 KB Output is correct
3 Correct 8 ms 12396 KB Output is correct
4 Correct 7 ms 12220 KB Output is correct
5 Correct 7 ms 12244 KB Output is correct
6 Correct 7 ms 12244 KB Output is correct
7 Correct 7 ms 12176 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 7 ms 12244 KB Output is correct
3 Correct 8 ms 12396 KB Output is correct
4 Correct 7 ms 12220 KB Output is correct
5 Correct 7 ms 12244 KB Output is correct
6 Correct 7 ms 12244 KB Output is correct
7 Correct 7 ms 12176 KB Output is correct
8 Correct 96 ms 13644 KB Output is correct
9 Correct 97 ms 13644 KB Output is correct
10 Correct 96 ms 13844 KB Output is correct
11 Correct 92 ms 14092 KB Output is correct
12 Correct 89 ms 13916 KB Output is correct
13 Correct 95 ms 13964 KB Output is correct
14 Correct 88 ms 13848 KB Output is correct
15 Correct 90 ms 14028 KB Output is correct
16 Correct 91 ms 14156 KB Output is correct
17 Correct 90 ms 13868 KB Output is correct
18 Correct 89 ms 13900 KB Output is correct
19 Correct 91 ms 13936 KB Output is correct
20 Correct 93 ms 14040 KB Output is correct
21 Correct 91 ms 14196 KB Output is correct
22 Correct 90 ms 13892 KB Output is correct
23 Correct 92 ms 13792 KB Output is correct
24 Correct 92 ms 13764 KB Output is correct
25 Correct 92 ms 13700 KB Output is correct
26 Correct 92 ms 13720 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 19196 KB Output is correct
2 Correct 143 ms 19276 KB Output is correct
3 Correct 137 ms 19332 KB Output is correct
4 Correct 142 ms 19268 KB Output is correct
5 Correct 142 ms 19288 KB Output is correct
6 Correct 127 ms 19340 KB Output is correct
7 Correct 129 ms 19444 KB Output is correct
8 Correct 124 ms 19532 KB Output is correct
9 Correct 125 ms 19468 KB Output is correct
10 Correct 129 ms 19632 KB Output is correct
11 Correct 126 ms 19580 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 7 ms 12244 KB Output is correct
3 Correct 8 ms 12396 KB Output is correct
4 Correct 7 ms 12220 KB Output is correct
5 Correct 7 ms 12244 KB Output is correct
6 Correct 7 ms 12244 KB Output is correct
7 Correct 7 ms 12176 KB Output is correct
8 Correct 96 ms 13644 KB Output is correct
9 Correct 97 ms 13644 KB Output is correct
10 Correct 96 ms 13844 KB Output is correct
11 Correct 92 ms 14092 KB Output is correct
12 Correct 89 ms 13916 KB Output is correct
13 Correct 95 ms 13964 KB Output is correct
14 Correct 88 ms 13848 KB Output is correct
15 Correct 90 ms 14028 KB Output is correct
16 Correct 91 ms 14156 KB Output is correct
17 Correct 90 ms 13868 KB Output is correct
18 Correct 89 ms 13900 KB Output is correct
19 Correct 91 ms 13936 KB Output is correct
20 Correct 93 ms 14040 KB Output is correct
21 Correct 91 ms 14196 KB Output is correct
22 Correct 90 ms 13892 KB Output is correct
23 Correct 92 ms 13792 KB Output is correct
24 Correct 92 ms 13764 KB Output is correct
25 Correct 92 ms 13700 KB Output is correct
26 Correct 92 ms 13720 KB Output is correct
27 Correct 141 ms 19196 KB Output is correct
28 Correct 143 ms 19276 KB Output is correct
29 Correct 137 ms 19332 KB Output is correct
30 Correct 142 ms 19268 KB Output is correct
31 Correct 142 ms 19288 KB Output is correct
32 Correct 127 ms 19340 KB Output is correct
33 Correct 129 ms 19444 KB Output is correct
34 Correct 124 ms 19532 KB Output is correct
35 Correct 125 ms 19468 KB Output is correct
36 Correct 129 ms 19632 KB Output is correct
37 Correct 126 ms 19580 KB Output is correct
38 Correct 204 ms 35404 KB Output is correct
39 Correct 217 ms 40936 KB Output is correct
40 Correct 192 ms 30028 KB Output is correct
41 Correct 218 ms 47560 KB Output is correct
42 Correct 135 ms 26700 KB Output is correct
43 Correct 133 ms 26788 KB Output is correct
44 Correct 181 ms 34764 KB Output is correct
45 Correct 179 ms 34864 KB Output is correct
46 Correct 178 ms 35108 KB Output is correct
47 Correct 142 ms 26784 KB Output is correct
48 Correct 136 ms 26592 KB Output is correct
49 Correct 178 ms 34768 KB Output is correct
50 Correct 180 ms 34896 KB Output is correct
51 Correct 178 ms 35148 KB Output is correct
52 Correct 168 ms 33688 KB Output is correct
53 Correct 196 ms 40976 KB Output is correct
54 Correct 224 ms 48076 KB Output is correct
55 Correct 194 ms 41064 KB Output is correct