oj.uz

Submission #942449

# Submission time Handle Problem Language Result Execution time Memory
942449 2024-03-10T16:25:06 Z Blagoj Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1035 ms 148472 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()

const int mxn = 1e5 + 10, K = 100;

int n, m, q;
vector<int> g[mxn];
vector<pair<int, int>> mx[mxn];
pair<int, int> mxDist[mxn];

void init() {
    for (int i = 1; i <= n; i++) {
        mx[i].push_back({0, i});
        mxDist[i] = {0, i};
        vector<int> v = {i};
        for (auto x : g[i]) {
            for (auto [dist, from] : mx[x]) {
                if (mxDist[from].second != i) {
                    mxDist[from] = {dist + 1, i};
                    v.push_back(from);
                }
                else mxDist[from].first = max(mxDist[from].first, dist + 1);
            }
        }
        for (auto x : v) mx[i].push_back({mxDist[x].first, x});
        sort(all(mx[i]));
        reverse(all(mx[i]));
        int sz = mx[i].size();
        while (sz > K) {
            sz--;
            mx[i].pop_back();
        }
    }
}

int dp[mxn], blocked[mxn];

int solve(int Time, int node) {
    memset(dp, 0, sizeof(dp));
    for (int i = 1; i <= node; i++) {
        for (auto x : g[i]) dp[i] = max(dp[i], dp[x] + 1);
        if (dp[i] == 0 && blocked[i] == Time) dp[i] = -1;
    }
    return dp[node];
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> m >> q;
    for (int i = 0; i < m; i++) {
        int f, t;
        cin >> f >> t;
        g[t].push_back(f);
    }
    init();
    int cnt = 0;
    while (q--) {
        cnt++;
        int node, sz;
        cin >> node >> sz;
        for (int i = 0; i < sz; i++) {
            int x;
            cin >> x;
            blocked[x] = cnt;
        }
        if (sz < K) {
            bool kurac = 0;
            for (auto x : mx[node]) {
                if (blocked[x.second] != cnt) {
                    kurac = 1;
                    cout << x.first << endl;
                    break;
                }
            }
            if (!kurac) cout << -1 << endl;
        }
        else cout << solve(cnt, node) << endl;
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6744 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 6 ms 7004 KB Output is correct
6 Correct 5 ms 6868 KB Output is correct
7 Correct 5 ms 6904 KB Output is correct
8 Correct 6 ms 7516 KB Output is correct
9 Correct 6 ms 7516 KB Output is correct
10 Correct 8 ms 7516 KB Output is correct
11 Correct 6 ms 7516 KB Output is correct
12 Correct 6 ms 7260 KB Output is correct
13 Correct 6 ms 7368 KB Output is correct
14 Correct 5 ms 7004 KB Output is correct
15 Correct 5 ms 7004 KB Output is correct
16 Correct 5 ms 7120 KB Output is correct
17 Correct 6 ms 7208 KB Output is correct
18 Correct 5 ms 7004 KB Output is correct
19 Correct 6 ms 7260 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6744 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 6 ms 7004 KB Output is correct
6 Correct 5 ms 6868 KB Output is correct
7 Correct 5 ms 6904 KB Output is correct
8 Correct 6 ms 7516 KB Output is correct
9 Correct 6 ms 7516 KB Output is correct
10 Correct 8 ms 7516 KB Output is correct
11 Correct 6 ms 7516 KB Output is correct
12 Correct 6 ms 7260 KB Output is correct
13 Correct 6 ms 7368 KB Output is correct
14 Correct 5 ms 7004 KB Output is correct
15 Correct 5 ms 7004 KB Output is correct
16 Correct 5 ms 7120 KB Output is correct
17 Correct 6 ms 7208 KB Output is correct
18 Correct 5 ms 7004 KB Output is correct
19 Correct 6 ms 7260 KB Output is correct
20 Correct 52 ms 8532 KB Output is correct
21 Correct 50 ms 8620 KB Output is correct
22 Correct 54 ms 8532 KB Output is correct
23 Correct 54 ms 8532 KB Output is correct
24 Correct 658 ms 115316 KB Output is correct
25 Correct 678 ms 111444 KB Output is correct
26 Correct 634 ms 111340 KB Output is correct
27 Correct 456 ms 111696 KB Output is correct
28 Correct 505 ms 111620 KB Output is correct
29 Correct 447 ms 111412 KB Output is correct
30 Correct 502 ms 111592 KB Output is correct
31 Correct 704 ms 130760 KB Output is correct
32 Correct 490 ms 111572 KB Output is correct
33 Correct 392 ms 75892 KB Output is correct
34 Correct 607 ms 104888 KB Output is correct
35 Correct 390 ms 75348 KB Output is correct
36 Correct 435 ms 92348 KB Output is correct
37 Correct 656 ms 115284 KB Output is correct
38 Correct 430 ms 92480 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6744 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 6 ms 7004 KB Output is correct
6 Correct 5 ms 6868 KB Output is correct
7 Correct 5 ms 6904 KB Output is correct
8 Correct 6 ms 7516 KB Output is correct
9 Correct 6 ms 7516 KB Output is correct
10 Correct 8 ms 7516 KB Output is correct
11 Correct 6 ms 7516 KB Output is correct
12 Correct 6 ms 7260 KB Output is correct
13 Correct 6 ms 7368 KB Output is correct
14 Correct 5 ms 7004 KB Output is correct
15 Correct 5 ms 7004 KB Output is correct
16 Correct 5 ms 7120 KB Output is correct
17 Correct 6 ms 7208 KB Output is correct
18 Correct 5 ms 7004 KB Output is correct
19 Correct 6 ms 7260 KB Output is correct
20 Correct 52 ms 8532 KB Output is correct
21 Correct 50 ms 8620 KB Output is correct
22 Correct 54 ms 8532 KB Output is correct
23 Correct 54 ms 8532 KB Output is correct
24 Correct 658 ms 115316 KB Output is correct
25 Correct 678 ms 111444 KB Output is correct
26 Correct 634 ms 111340 KB Output is correct
27 Correct 456 ms 111696 KB Output is correct
28 Correct 505 ms 111620 KB Output is correct
29 Correct 447 ms 111412 KB Output is correct
30 Correct 502 ms 111592 KB Output is correct
31 Correct 704 ms 130760 KB Output is correct
32 Correct 490 ms 111572 KB Output is correct
33 Correct 392 ms 75892 KB Output is correct
34 Correct 607 ms 104888 KB Output is correct
35 Correct 390 ms 75348 KB Output is correct
36 Correct 435 ms 92348 KB Output is correct
37 Correct 656 ms 115284 KB Output is correct
38 Correct 430 ms 92480 KB Output is correct
39 Correct 684 ms 117864 KB Output is correct
40 Correct 658 ms 116048 KB Output is correct
41 Correct 884 ms 117092 KB Output is correct
42 Correct 698 ms 116064 KB Output is correct
43 Correct 652 ms 117840 KB Output is correct
44 Correct 74 ms 11344 KB Output is correct
45 Correct 60 ms 10556 KB Output is correct
46 Correct 105 ms 10576 KB Output is correct
47 Correct 63 ms 10184 KB Output is correct
48 Correct 52 ms 10064 KB Output is correct
49 Correct 479 ms 115056 KB Output is correct
50 Correct 689 ms 113884 KB Output is correct
51 Correct 75 ms 11088 KB Output is correct
52 Correct 106 ms 10652 KB Output is correct
53 Correct 452 ms 95652 KB Output is correct
54 Correct 674 ms 117604 KB Output is correct
55 Correct 713 ms 94608 KB Output is correct
56 Correct 939 ms 120228 KB Output is correct
57 Correct 95 ms 11348 KB Output is correct
58 Correct 70 ms 11088 KB Output is correct
59 Correct 112 ms 10448 KB Output is correct
60 Correct 151 ms 10468 KB Output is correct
61 Correct 714 ms 114112 KB Output is correct
62 Correct 497 ms 94996 KB Output is correct
63 Correct 768 ms 115768 KB Output is correct
64 Correct 665 ms 114016 KB Output is correct
65 Correct 631 ms 94668 KB Output is correct
66 Correct 883 ms 118024 KB Output is correct
67 Correct 715 ms 114084 KB Output is correct
68 Correct 733 ms 95244 KB Output is correct
69 Correct 890 ms 117808 KB Output is correct
70 Correct 455 ms 114032 KB Output is correct
71 Correct 443 ms 95036 KB Output is correct
72 Correct 658 ms 117644 KB Output is correct
73 Correct 467 ms 113972 KB Output is correct
74 Correct 462 ms 94956 KB Output is correct
75 Correct 685 ms 119892 KB Output is correct
76 Correct 486 ms 115800 KB Output is correct
77 Correct 714 ms 114336 KB Output is correct
78 Correct 456 ms 114428 KB Output is correct
79 Correct 70 ms 11400 KB Output is correct
80 Correct 104 ms 10376 KB Output is correct
81 Correct 52 ms 10208 KB Output is correct
82 Correct 545 ms 115652 KB Output is correct
83 Correct 814 ms 138276 KB Output is correct
84 Correct 713 ms 114428 KB Output is correct
85 Correct 1035 ms 148472 KB Output is correct
86 Correct 524 ms 114316 KB Output is correct
87 Correct 778 ms 137208 KB Output is correct
88 Correct 71 ms 11344 KB Output is correct
89 Correct 84 ms 11344 KB Output is correct
90 Correct 106 ms 10556 KB Output is correct
91 Correct 106 ms 10324 KB Output is correct
92 Correct 52 ms 10076 KB Output is correct
93 Correct 61 ms 10004 KB Output is correct
94 Correct 430 ms 80220 KB Output is correct
95 Correct 721 ms 115612 KB Output is correct
96 Correct 620 ms 78928 KB Output is correct
97 Correct 859 ms 115612 KB Output is correct
98 Correct 400 ms 78956 KB Output is correct
99 Correct 618 ms 111136 KB Output is correct
100 Correct 84 ms 11324 KB Output is correct
101 Correct 75 ms 11416 KB Output is correct
102 Correct 108 ms 10804 KB Output is correct
103 Correct 94 ms 10576 KB Output is correct
104 Correct 57 ms 10068 KB Output is correct
105 Correct 59 ms 10148 KB Output is correct
106 Correct 480 ms 96196 KB Output is correct
107 Correct 729 ms 123560 KB Output is correct
108 Correct 698 ms 95692 KB Output is correct
109 Correct 922 ms 114052 KB Output is correct
110 Correct 454 ms 95580 KB Output is correct
111 Correct 689 ms 119616 KB Output is correct
112 Correct 71 ms 11308 KB Output is correct
113 Correct 77 ms 11448 KB Output is correct
114 Correct 101 ms 10404 KB Output is correct
115 Correct 109 ms 10304 KB Output is correct
116 Correct 53 ms 9940 KB Output is correct
117 Correct 53 ms 10064 KB Output is correct
118 Correct 480 ms 113968 KB Output is correct
119 Correct 458 ms 94988 KB Output is correct
120 Correct 685 ms 123476 KB Output is correct
121 Correct 468 ms 114060 KB Output is correct
122 Correct 470 ms 94944 KB Output is correct
123 Correct 701 ms 122448 KB Output is correct
124 Correct 473 ms 114004 KB Output is correct
125 Correct 452 ms 95116 KB Output is correct
126 Correct 658 ms 118964 KB Output is correct