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Submission #892156

# Submission time Handle Problem Language Result Execution time Memory
892156 2023-12-25T02:12:14 Z box Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 463 ms 88528 KB 
#include <bits/stdc++.h>
using namespace std;

#define ar array
#define sz(v) int(std::size(v))
using i64 = long long;
using pii = pair<int, int>;

const int N = 1e5, B = 100;

int n, m, q;
vector<int> from[N];
pii dp[N][B], tmp[B];

void merge(pii *one, pii *two, pii *me) {
    static bool used[N];
    int i = 0, x = 0, y = 0;
    for (; i < B; i++) {
        while (x < B && one[x].second != -1 && used[one[x].second]) x++;
        while (y < B && two[y].second != -1 && used[two[y].second]) y++;
        if ((x == B || one[x].second == -1) && (y == B || two[y].second == -1)) break;
        if (x == B || one[x].second == -1) me[i] = {two[y].first + 1, two[y].second}, y++;
        else if (y == B || two[y].second == -1) me[i] = one[x++];
        else if (one[x].first > two[y].first + 1) me[i] = one[x++];
        else me[i] = {two[y].first + 1, two[y].second}, y++;
        used[me[i].second] = true;
    }
    for (int j = i; j < B; j++) me[j] = {-1, -1};
    for (int j = i - 1; j >= 0; j--) used[me[j].second] = false;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> m >> q;
    while (m--) {
        int l, r;
        cin >> l >> r, l--, r--;
        from[r].push_back(l);
    }
    for (int i = 0; i < n; i++) {
        fill(dp[i], dp[i] + B, pii{-1, -1});
        dp[i][0] = {0, i};
        for (int j : from[i]) merge(dp[i], dp[j], tmp), swap(dp[i], tmp);
    }
    while (q--) {
        static bool dead[N];
        int i, k;
        cin >> i >> k, i--;
        vector<int> v(k);
        for (int &i : v) cin >> i, i--, dead[i] = true;
        int ans = -1;
        if (k < B) {
            for (int h = 0; h < B; h++) {
                if (dp[i][h].second == -1) break;
                if (!dead[dp[i][h].second]) {
                    ans = dp[i][h].first;
                    break;
                }
            }
        } else {
            static int dp[N];
            fill(dp, dp + n, -1);
            dp[i] = 0;
            for (int j = i; j >= 0; j--) if (~dp[j]) {
                if (!dead[j]) ans = max(ans, dp[j]);
                for (int k : from[j]) dp[k] = max(dp[k], dp[j] + 1);
            }
        }
        cout << ans << '\n';
        for (int i : v) dead[i] = false;
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2908 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2908 KB Output is correct
5 Correct 2 ms 5212 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5216 KB Output is correct
8 Correct 3 ms 5212 KB Output is correct
9 Correct 3 ms 5212 KB Output is correct
10 Correct 3 ms 5212 KB Output is correct
11 Correct 3 ms 5212 KB Output is correct
12 Correct 3 ms 5212 KB Output is correct
13 Correct 3 ms 5212 KB Output is correct
14 Correct 2 ms 5212 KB Output is correct
15 Correct 3 ms 5068 KB Output is correct
16 Correct 3 ms 5212 KB Output is correct
17 Correct 3 ms 5212 KB Output is correct
18 Correct 2 ms 4992 KB Output is correct
19 Correct 3 ms 5212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2908 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2908 KB Output is correct
5 Correct 2 ms 5212 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5216 KB Output is correct
8 Correct 3 ms 5212 KB Output is correct
9 Correct 3 ms 5212 KB Output is correct
10 Correct 3 ms 5212 KB Output is correct
11 Correct 3 ms 5212 KB Output is correct
12 Correct 3 ms 5212 KB Output is correct
13 Correct 3 ms 5212 KB Output is correct
14 Correct 2 ms 5212 KB Output is correct
15 Correct 3 ms 5068 KB Output is correct
16 Correct 3 ms 5212 KB Output is correct
17 Correct 3 ms 5212 KB Output is correct
18 Correct 2 ms 4992 KB Output is correct
19 Correct 3 ms 5212 KB Output is correct
20 Correct 147 ms 7760 KB Output is correct
21 Correct 148 ms 7920 KB Output is correct
22 Correct 162 ms 8196 KB Output is correct
23 Correct 150 ms 7948 KB Output is correct
24 Correct 212 ms 87104 KB Output is correct
25 Correct 219 ms 87120 KB Output is correct
26 Correct 217 ms 87072 KB Output is correct
27 Correct 209 ms 87428 KB Output is correct
28 Correct 199 ms 87320 KB Output is correct
29 Correct 192 ms 87380 KB Output is correct
30 Correct 193 ms 87376 KB Output is correct
31 Correct 207 ms 87472 KB Output is correct
32 Correct 192 ms 87376 KB Output is correct
33 Correct 171 ms 87120 KB Output is correct
34 Correct 171 ms 87112 KB Output is correct
35 Correct 173 ms 87116 KB Output is correct
36 Correct 185 ms 87104 KB Output is correct
37 Correct 190 ms 87032 KB Output is correct
38 Correct 184 ms 87124 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2908 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2908 KB Output is correct
4 Correct 1 ms 2908 KB Output is correct
5 Correct 2 ms 5212 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5216 KB Output is correct
8 Correct 3 ms 5212 KB Output is correct
9 Correct 3 ms 5212 KB Output is correct
10 Correct 3 ms 5212 KB Output is correct
11 Correct 3 ms 5212 KB Output is correct
12 Correct 3 ms 5212 KB Output is correct
13 Correct 3 ms 5212 KB Output is correct
14 Correct 2 ms 5212 KB Output is correct
15 Correct 3 ms 5068 KB Output is correct
16 Correct 3 ms 5212 KB Output is correct
17 Correct 3 ms 5212 KB Output is correct
18 Correct 2 ms 4992 KB Output is correct
19 Correct 3 ms 5212 KB Output is correct
20 Correct 147 ms 7760 KB Output is correct
21 Correct 148 ms 7920 KB Output is correct
22 Correct 162 ms 8196 KB Output is correct
23 Correct 150 ms 7948 KB Output is correct
24 Correct 212 ms 87104 KB Output is correct
25 Correct 219 ms 87120 KB Output is correct
26 Correct 217 ms 87072 KB Output is correct
27 Correct 209 ms 87428 KB Output is correct
28 Correct 199 ms 87320 KB Output is correct
29 Correct 192 ms 87380 KB Output is correct
30 Correct 193 ms 87376 KB Output is correct
31 Correct 207 ms 87472 KB Output is correct
32 Correct 192 ms 87376 KB Output is correct
33 Correct 171 ms 87120 KB Output is correct
34 Correct 171 ms 87112 KB Output is correct
35 Correct 173 ms 87116 KB Output is correct
36 Correct 185 ms 87104 KB Output is correct
37 Correct 190 ms 87032 KB Output is correct
38 Correct 184 ms 87124 KB Output is correct
39 Correct 230 ms 87892 KB Output is correct
40 Correct 219 ms 86812 KB Output is correct
41 Correct 284 ms 87128 KB Output is correct
42 Correct 220 ms 87492 KB Output is correct
43 Correct 212 ms 87096 KB Output is correct
44 Correct 169 ms 9040 KB Output is correct
45 Correct 158 ms 8324 KB Output is correct
46 Correct 196 ms 8272 KB Output is correct
47 Correct 159 ms 8052 KB Output is correct
48 Correct 158 ms 7920 KB Output is correct
49 Correct 214 ms 87928 KB Output is correct
50 Correct 438 ms 87404 KB Output is correct
51 Correct 169 ms 9224 KB Output is correct
52 Correct 196 ms 8212 KB Output is correct
53 Correct 216 ms 87636 KB Output is correct
54 Correct 228 ms 87524 KB Output is correct
55 Correct 351 ms 86864 KB Output is correct
56 Correct 304 ms 87120 KB Output is correct
57 Correct 168 ms 9088 KB Output is correct
58 Correct 211 ms 9044 KB Output is correct
59 Correct 207 ms 8276 KB Output is correct
60 Correct 199 ms 8048 KB Output is correct
61 Correct 235 ms 87120 KB Output is correct
62 Correct 219 ms 87036 KB Output is correct
63 Correct 210 ms 86952 KB Output is correct
64 Correct 335 ms 87128 KB Output is correct
65 Correct 283 ms 87200 KB Output is correct
66 Correct 244 ms 86932 KB Output is correct
67 Correct 463 ms 87456 KB Output is correct
68 Correct 337 ms 86864 KB Output is correct
69 Correct 301 ms 87124 KB Output is correct
70 Correct 204 ms 87332 KB Output is correct
71 Correct 194 ms 87124 KB Output is correct
72 Correct 201 ms 87084 KB Output is correct
73 Correct 207 ms 87380 KB Output is correct
74 Correct 200 ms 86888 KB Output is correct
75 Correct 218 ms 87184 KB Output is correct
76 Correct 218 ms 88480 KB Output is correct
77 Correct 442 ms 87592 KB Output is correct
78 Correct 203 ms 87596 KB Output is correct
79 Correct 168 ms 9052 KB Output is correct
80 Correct 191 ms 8276 KB Output is correct
81 Correct 158 ms 7876 KB Output is correct
82 Correct 219 ms 88488 KB Output is correct
83 Correct 243 ms 88528 KB Output is correct
84 Correct 421 ms 87632 KB Output is correct
85 Correct 343 ms 87796 KB Output is correct
86 Correct 193 ms 87632 KB Output is correct
87 Correct 207 ms 87636 KB Output is correct
88 Correct 172 ms 9056 KB Output is correct
89 Correct 169 ms 9148 KB Output is correct
90 Correct 195 ms 8328 KB Output is correct
91 Correct 206 ms 8264 KB Output is correct
92 Correct 149 ms 8012 KB Output is correct
93 Correct 149 ms 7780 KB Output is correct
94 Correct 209 ms 88408 KB Output is correct
95 Correct 201 ms 87720 KB Output is correct
96 Correct 323 ms 87120 KB Output is correct
97 Correct 283 ms 87304 KB Output is correct
98 Correct 179 ms 87280 KB Output is correct
99 Correct 170 ms 87124 KB Output is correct
100 Correct 173 ms 9484 KB Output is correct
101 Correct 171 ms 9212 KB Output is correct
102 Correct 192 ms 8272 KB Output is correct
103 Correct 190 ms 8336 KB Output is correct
104 Correct 152 ms 7880 KB Output is correct
105 Correct 150 ms 7956 KB Output is correct
106 Correct 217 ms 88148 KB Output is correct
107 Correct 242 ms 87844 KB Output is correct
108 Correct 331 ms 87120 KB Output is correct
109 Correct 290 ms 87132 KB Output is correct
110 Correct 200 ms 87184 KB Output is correct
111 Correct 199 ms 87124 KB Output is correct
112 Correct 169 ms 9296 KB Output is correct
113 Correct 169 ms 9068 KB Output is correct
114 Correct 189 ms 8324 KB Output is correct
115 Correct 203 ms 8372 KB Output is correct
116 Correct 148 ms 7772 KB Output is correct
117 Correct 152 ms 7764 KB Output is correct
118 Correct 199 ms 87316 KB Output is correct
119 Correct 195 ms 86352 KB Output is correct
120 Correct 198 ms 86392 KB Output is correct
121 Correct 209 ms 86840 KB Output is correct
122 Correct 197 ms 86584 KB Output is correct
123 Correct 195 ms 86560 KB Output is correct
124 Correct 190 ms 86672 KB Output is correct
125 Correct 193 ms 86456 KB Output is correct
126 Correct 196 ms 86540 KB Output is correct