oj.uz

Submission #403606

# Submission time Handle Problem Language Result Execution time Memory
403606 2021-05-13T10:02:19 Z lyc None (KOI18_family) C++14
59 / 100
 600 ms 196940 KB 
#include <bits/stdc++.h>
using namespace std;

#define TRACE(x) cerr << #x << " :: " << x << endl
#define _ << " " <<
#define SZ(x) (int)(x).size()
#define ALL(x) (x).begin(),(x).end()
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for (int i=(a);i>=(b);--i)

//const int mxN = 3e5+5;
//const int mxK = 3e5+5;
const int mxN = 5005;
const int mxK = 5005;
const int inf = 1e9+5;

int K;

struct Tree {
    int N;
    vector<int> g[mxN];
    int pa[mxN];
    int dep[mxN];
    int _lca[mxK][mxK];

    void read() {
        FOR(i,1,N){
            int P; cin >> P;
            g[P].push_back(i);
        }
    }

    void dfs(int u) {
        for (int& v : g[u]) {
            pa[v] = u;
            dep[v] = dep[u]+1;
            dfs(v);
        }
    }

    int lca(int a, int b) {
        if (_lca[a][b] != -1) return _lca[a][b];
        if (a == b) return a;
        if (dep[a] > dep[b]) {
            return _lca[a][b] = lca(pa[a],b);
        } else {
            return _lca[a][b] = lca(a,pa[b]);
        }
    }

    void run() {
        memset(pa,-1,sizeof pa);
        dep[0] = 0;
        dfs(0);
        memset(_lca,-1,sizeof _lca);
    }

    inline int lcd(int a, int b) {
        return dep[lca(a,b)];
    }
} A, B;

int mn[mxN];

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

    cin >> A.N >> B.N >> K;
    A.read();
    B.read();

    A.run();
    B.run();

    bool die = 0;

    FOR(i,1,K){
        FOR(j,1,A.N) mn[j] = inf;
        FOR(j,1,K) if (j != i) {
            int a = A.lcd(i,j), b = B.lcd(i,j);
            mn[a] = min(mn[a],b);
        }
        RFOR(j,A.N-1,1) mn[j] = min(mn[j+1],mn[j]);
        FOR(j,1,K) if (j != i) {
            int a = A.lcd(i,j), b = B.lcd(i,j);
            if (a < A.N) die |= b > mn[a+1];
        }
    }

    cout << (die ? "NO" : "YES") << '\n';
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 196548 KB Output is correct
2 Correct 80 ms 196556 KB Output is correct
3 Correct 81 ms 196612 KB Output is correct
4 Correct 90 ms 196624 KB Output is correct
5 Correct 86 ms 196548 KB Output is correct
6 Correct 79 ms 196600 KB Output is correct
7 Correct 81 ms 196648 KB Output is correct
8 Correct 80 ms 196620 KB Output is correct
9 Correct 80 ms 196584 KB Output is correct
10 Correct 81 ms 196632 KB Output is correct
11 Correct 88 ms 196664 KB Output is correct
12 Correct 80 ms 196676 KB Output is correct
13 Correct 82 ms 196648 KB Output is correct
14 Correct 80 ms 196644 KB Output is correct
15 Correct 82 ms 196676 KB Output is correct
16 Correct 91 ms 196564 KB Output is correct
17 Correct 85 ms 196656 KB Output is correct
18 Correct 81 ms 196664 KB Output is correct
19 Correct 82 ms 196628 KB Output is correct
20 Correct 93 ms 196556 KB Output is correct
21 Correct 81 ms 196552 KB Output is correct
22 Correct 81 ms 196636 KB Output is correct
23 Correct 82 ms 196580 KB Output is correct
24 Correct 81 ms 196548 KB Output is correct
25 Correct 80 ms 196612 KB Output is correct
26 Correct 80 ms 196584 KB Output is correct
27 Correct 85 ms 196608 KB Output is correct
28 Correct 79 ms 196556 KB Output is correct
29 Correct 83 ms 196572 KB Output is correct
30 Correct 81 ms 196696 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 196548 KB Output is correct
2 Correct 80 ms 196556 KB Output is correct
3 Correct 81 ms 196612 KB Output is correct
4 Correct 90 ms 196624 KB Output is correct
5 Correct 86 ms 196548 KB Output is correct
6 Correct 79 ms 196600 KB Output is correct
7 Correct 81 ms 196648 KB Output is correct
8 Correct 80 ms 196620 KB Output is correct
9 Correct 80 ms 196584 KB Output is correct
10 Correct 81 ms 196632 KB Output is correct
11 Correct 88 ms 196664 KB Output is correct
12 Correct 80 ms 196676 KB Output is correct
13 Correct 82 ms 196648 KB Output is correct
14 Correct 80 ms 196644 KB Output is correct
15 Correct 82 ms 196676 KB Output is correct
16 Correct 91 ms 196564 KB Output is correct
17 Correct 85 ms 196656 KB Output is correct
18 Correct 81 ms 196664 KB Output is correct
19 Correct 82 ms 196628 KB Output is correct
20 Correct 93 ms 196556 KB Output is correct
21 Correct 81 ms 196552 KB Output is correct
22 Correct 81 ms 196636 KB Output is correct
23 Correct 82 ms 196580 KB Output is correct
24 Correct 81 ms 196548 KB Output is correct
25 Correct 80 ms 196612 KB Output is correct
26 Correct 80 ms 196584 KB Output is correct
27 Correct 85 ms 196608 KB Output is correct
28 Correct 79 ms 196556 KB Output is correct
29 Correct 83 ms 196572 KB Output is correct
30 Correct 81 ms 196696 KB Output is correct
31 Correct 81 ms 196624 KB Output is correct
32 Correct 81 ms 196632 KB Output is correct
33 Correct 89 ms 196632 KB Output is correct
34 Correct 88 ms 196644 KB Output is correct
35 Correct 82 ms 196684 KB Output is correct
36 Correct 85 ms 196652 KB Output is correct
37 Correct 79 ms 196636 KB Output is correct
38 Correct 81 ms 196656 KB Output is correct
39 Correct 81 ms 196612 KB Output is correct
40 Correct 101 ms 196676 KB Output is correct
41 Correct 80 ms 196580 KB Output is correct
42 Correct 79 ms 196552 KB Output is correct
43 Correct 80 ms 196572 KB Output is correct
44 Correct 82 ms 196548 KB Output is correct
45 Correct 81 ms 196612 KB Output is correct
46 Correct 81 ms 196628 KB Output is correct
47 Correct 79 ms 196656 KB Output is correct
48 Correct 85 ms 196548 KB Output is correct
49 Correct 81 ms 196676 KB Output is correct
50 Correct 82 ms 196620 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 196548 KB Output is correct
2 Correct 80 ms 196556 KB Output is correct
3 Correct 81 ms 196612 KB Output is correct
4 Correct 90 ms 196624 KB Output is correct
5 Correct 86 ms 196548 KB Output is correct
6 Correct 79 ms 196600 KB Output is correct
7 Correct 81 ms 196648 KB Output is correct
8 Correct 80 ms 196620 KB Output is correct
9 Correct 80 ms 196584 KB Output is correct
10 Correct 81 ms 196632 KB Output is correct
11 Correct 88 ms 196664 KB Output is correct
12 Correct 80 ms 196676 KB Output is correct
13 Correct 82 ms 196648 KB Output is correct
14 Correct 80 ms 196644 KB Output is correct
15 Correct 82 ms 196676 KB Output is correct
16 Correct 91 ms 196564 KB Output is correct
17 Correct 85 ms 196656 KB Output is correct
18 Correct 81 ms 196664 KB Output is correct
19 Correct 82 ms 196628 KB Output is correct
20 Correct 93 ms 196556 KB Output is correct
21 Correct 81 ms 196552 KB Output is correct
22 Correct 81 ms 196636 KB Output is correct
23 Correct 82 ms 196580 KB Output is correct
24 Correct 81 ms 196548 KB Output is correct
25 Correct 80 ms 196612 KB Output is correct
26 Correct 80 ms 196584 KB Output is correct
27 Correct 85 ms 196608 KB Output is correct
28 Correct 79 ms 196556 KB Output is correct
29 Correct 83 ms 196572 KB Output is correct
30 Correct 81 ms 196696 KB Output is correct
31 Correct 81 ms 196624 KB Output is correct
32 Correct 81 ms 196632 KB Output is correct
33 Correct 89 ms 196632 KB Output is correct
34 Correct 88 ms 196644 KB Output is correct
35 Correct 82 ms 196684 KB Output is correct
36 Correct 85 ms 196652 KB Output is correct
37 Correct 79 ms 196636 KB Output is correct
38 Correct 81 ms 196656 KB Output is correct
39 Correct 81 ms 196612 KB Output is correct
40 Correct 101 ms 196676 KB Output is correct
41 Correct 80 ms 196580 KB Output is correct
42 Correct 79 ms 196552 KB Output is correct
43 Correct 80 ms 196572 KB Output is correct
44 Correct 82 ms 196548 KB Output is correct
45 Correct 81 ms 196612 KB Output is correct
46 Correct 81 ms 196628 KB Output is correct
47 Correct 79 ms 196656 KB Output is correct
48 Correct 85 ms 196548 KB Output is correct
49 Correct 81 ms 196676 KB Output is correct
50 Correct 82 ms 196620 KB Output is correct
51 Correct 600 ms 196692 KB Output is correct
52 Correct 514 ms 196804 KB Output is correct
53 Correct 375 ms 196864 KB Output is correct
54 Correct 316 ms 196804 KB Output is correct
55 Correct 584 ms 196772 KB Output is correct
56 Correct 568 ms 196676 KB Output is correct
57 Correct 438 ms 196876 KB Output is correct
58 Correct 398 ms 196804 KB Output is correct
59 Correct 573 ms 196920 KB Output is correct
60 Correct 515 ms 196768 KB Output is correct
61 Correct 393 ms 196940 KB Output is correct
62 Correct 395 ms 196940 KB Output is correct
63 Correct 446 ms 196676 KB Output is correct
64 Correct 157 ms 196676 KB Output is correct
65 Correct 81 ms 196688 KB Output is correct
66 Correct 456 ms 196812 KB Output is correct
67 Correct 575 ms 196784 KB Output is correct
68 Correct 195 ms 196804 KB Output is correct
69 Correct 435 ms 196832 KB Output is correct
70 Correct 469 ms 196780 KB Output is correct

Subtask #4
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 196548 KB Output is correct
2 Correct 80 ms 196556 KB Output is correct
3 Correct 81 ms 196612 KB Output is correct
4 Correct 90 ms 196624 KB Output is correct
5 Correct 86 ms 196548 KB Output is correct
6 Correct 79 ms 196600 KB Output is correct
7 Correct 81 ms 196648 KB Output is correct
8 Correct 80 ms 196620 KB Output is correct
9 Correct 80 ms 196584 KB Output is correct
10 Correct 81 ms 196632 KB Output is correct
11 Correct 88 ms 196664 KB Output is correct
12 Correct 80 ms 196676 KB Output is correct
13 Correct 82 ms 196648 KB Output is correct
14 Correct 80 ms 196644 KB Output is correct
15 Correct 82 ms 196676 KB Output is correct
16 Correct 91 ms 196564 KB Output is correct
17 Correct 85 ms 196656 KB Output is correct
18 Correct 81 ms 196664 KB Output is correct
19 Correct 82 ms 196628 KB Output is correct
20 Correct 93 ms 196556 KB Output is correct
21 Correct 81 ms 196552 KB Output is correct
22 Correct 81 ms 196636 KB Output is correct
23 Correct 82 ms 196580 KB Output is correct
24 Correct 81 ms 196548 KB Output is correct
25 Correct 80 ms 196612 KB Output is correct
26 Correct 80 ms 196584 KB Output is correct
27 Correct 85 ms 196608 KB Output is correct
28 Correct 79 ms 196556 KB Output is correct
29 Correct 83 ms 196572 KB Output is correct
30 Correct 81 ms 196696 KB Output is correct
31 Correct 81 ms 196624 KB Output is correct
32 Correct 81 ms 196632 KB Output is correct
33 Correct 89 ms 196632 KB Output is correct
34 Correct 88 ms 196644 KB Output is correct
35 Correct 82 ms 196684 KB Output is correct
36 Correct 85 ms 196652 KB Output is correct
37 Correct 79 ms 196636 KB Output is correct
38 Correct 81 ms 196656 KB Output is correct
39 Correct 81 ms 196612 KB Output is correct
40 Correct 101 ms 196676 KB Output is correct
41 Correct 80 ms 196580 KB Output is correct
42 Correct 79 ms 196552 KB Output is correct
43 Correct 80 ms 196572 KB Output is correct
44 Correct 82 ms 196548 KB Output is correct
45 Correct 81 ms 196612 KB Output is correct
46 Correct 81 ms 196628 KB Output is correct
47 Correct 79 ms 196656 KB Output is correct
48 Correct 85 ms 196548 KB Output is correct
49 Correct 81 ms 196676 KB Output is correct
50 Correct 82 ms 196620 KB Output is correct
51 Correct 600 ms 196692 KB Output is correct
52 Correct 514 ms 196804 KB Output is correct
53 Correct 375 ms 196864 KB Output is correct
54 Correct 316 ms 196804 KB Output is correct
55 Correct 584 ms 196772 KB Output is correct
56 Correct 568 ms 196676 KB Output is correct
57 Correct 438 ms 196876 KB Output is correct
58 Correct 398 ms 196804 KB Output is correct
59 Correct 573 ms 196920 KB Output is correct
60 Correct 515 ms 196768 KB Output is correct
61 Correct 393 ms 196940 KB Output is correct
62 Correct 395 ms 196940 KB Output is correct
63 Correct 446 ms 196676 KB Output is correct
64 Correct 157 ms 196676 KB Output is correct
65 Correct 81 ms 196688 KB Output is correct
66 Correct 456 ms 196812 KB Output is correct
67 Correct 575 ms 196784 KB Output is correct
68 Correct 195 ms 196804 KB Output is correct
69 Correct 435 ms 196832 KB Output is correct
70 Correct 469 ms 196780 KB Output is correct
71 Runtime error 29 ms 8908 KB Execution killed with signal 11
72 Halted 0 ms 0 KB -