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Submission #560619

# Submission time Handle Problem Language Result Execution time Memory
560619 2022-05-11T17:52:01 Z Ooops_sorry The short shank; Redemption (BOI21_prison) C++14
100 / 100
 1929 ms 300220 KB 
#include<bits/stdc++.h>

using namespace std;

#define pb push_back
#define ld long double
#define ll long long

mt19937 rnd(51);

const int N = 2e6 + 10;
vector<int> g[N], used(N), mas;

struct SegTree {
    vector<int> t;
    int n;
    SegTree(int n_) {
        n = n_;
        t.resize(2 * n, -1);
    }
    void upd(int i, int val) {
        i += n;
        t[i] = max(t[i], val);
        for (; i > 1; i /= 2) {
            t[i / 2] = max(t[i], t[i ^ 1]);
        }
    }
    int get(int l, int r) {
        l += n, r += n + 1;
        int ans = -1;
        while (l < r) {
            if (l & 1) {
                ans = max(ans, t[l++]);
            }
            if (r & 1) {
                ans = max(ans, t[--r]);
            }
            l /= 2, r /= 2;
        }
        return ans;
    }
};

int dfs(int v) {
    used[v] = 1;
    if (g[v].size() == 0) {
        return 1;
    }
    vector<int> arr;
    int now = -1;
    for (auto to : g[v]) {
        int nw = dfs(to);
        if (nw > now) {
            if (now != -1) mas.pb(now);
            now = nw;
        } else {
            mas.pb(nw);
        }
    }
    return now + 1;
}

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif // LCOAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, d, T, ans = 0;
    cin >> n >> d >> T;
    vector<int> t(n), go(n, -1), u;
    for (int i = 0; i < n; i++) {
        cin >> t[i];
        u.pb(t[i] - i);
        u.pb(T - i);
    }
    sort(u.begin(), u.end());
    u.erase(unique(u.begin(), u.end()), u.end());
    SegTree st((int)u.size());
    for (int i = 0; i < n; i++) {
        if (t[i] > T) {
            int j = lower_bound(u.begin(), u.end(), T - i) - u.begin();
            int pos = st.get(0, j);
            if (pos != -1) {
                go[i] = pos;
                ans++;
            }
        } else {
            ans++;
        }
        int j = lower_bound(u.begin(), u.end(), t[i] - i) - u.begin();
        st.upd(j, i);
    }
    deque<pair<int,int>> q;
    for (int i = n - 1; i >= 0; i--) {
        while (q.size() > 0 && q.back().first > i) {
            q.pop_back();
        }
        if (go[i] != -1) {
            if (q.size() > 0) {
                g[q.back().second].pb(i);
            }
            q.pb({go[i], i});
        }
    }
    for (int i = n - 1; i >= 0; i--) {
        if (!used[i]) {
            int val = dfs(i);
            mas.pb(val);
        }
    }
    sort(mas.rbegin(), mas.rend());
    for (int i = 0; i < min((int)mas.size(), d); i++) {
        ans -= mas[i];
    }
    cout << ans << endl;
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 55108 KB Output is correct
2 Correct 26 ms 55112 KB Output is correct
3 Correct 26 ms 55136 KB Output is correct
4 Correct 32 ms 55052 KB Output is correct
5 Correct 27 ms 55176 KB Output is correct
6 Correct 33 ms 55124 KB Output is correct
7 Correct 31 ms 55072 KB Output is correct
8 Correct 29 ms 55116 KB Output is correct
9 Correct 31 ms 55132 KB Output is correct
10 Correct 29 ms 55124 KB Output is correct
11 Correct 36 ms 55124 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 55168 KB Output is correct
2 Correct 469 ms 76988 KB Output is correct
3 Correct 401 ms 76368 KB Output is correct
4 Correct 247 ms 78192 KB Output is correct
5 Correct 245 ms 76732 KB Output is correct
6 Correct 364 ms 84448 KB Output is correct
7 Correct 445 ms 132816 KB Output is correct
8 Correct 346 ms 85176 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 55108 KB Output is correct
2 Correct 26 ms 55112 KB Output is correct
3 Correct 26 ms 55136 KB Output is correct
4 Correct 32 ms 55052 KB Output is correct
5 Correct 27 ms 55176 KB Output is correct
6 Correct 33 ms 55124 KB Output is correct
7 Correct 31 ms 55072 KB Output is correct
8 Correct 29 ms 55116 KB Output is correct
9 Correct 31 ms 55132 KB Output is correct
10 Correct 29 ms 55124 KB Output is correct
11 Correct 36 ms 55124 KB Output is correct
12 Correct 33 ms 55016 KB Output is correct
13 Correct 32 ms 55124 KB Output is correct
14 Correct 28 ms 55120 KB Output is correct
15 Correct 27 ms 55136 KB Output is correct
16 Correct 28 ms 55116 KB Output is correct
17 Correct 29 ms 55164 KB Output is correct
18 Correct 28 ms 55124 KB Output is correct
19 Correct 30 ms 55064 KB Output is correct
20 Correct 28 ms 55124 KB Output is correct
21 Correct 34 ms 55040 KB Output is correct
22 Correct 35 ms 55108 KB Output is correct
23 Correct 37 ms 55248 KB Output is correct
24 Correct 28 ms 55204 KB Output is correct
25 Correct 34 ms 55240 KB Output is correct
26 Correct 28 ms 55252 KB Output is correct
27 Correct 35 ms 55324 KB Output is correct
28 Correct 28 ms 55200 KB Output is correct
29 Correct 36 ms 55244 KB Output is correct
30 Correct 30 ms 55224 KB Output is correct
31 Correct 29 ms 55244 KB Output is correct
32 Correct 30 ms 55276 KB Output is correct
33 Correct 29 ms 55252 KB Output is correct
34 Correct 29 ms 55328 KB Output is correct
35 Correct 33 ms 55244 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 55104 KB Output is correct
2 Correct 85 ms 58760 KB Output is correct
3 Correct 74 ms 58436 KB Output is correct
4 Correct 62 ms 61180 KB Output is correct
5 Correct 70 ms 63264 KB Output is correct
6 Correct 69 ms 63328 KB Output is correct
7 Correct 68 ms 59120 KB Output is correct
8 Correct 87 ms 58952 KB Output is correct
9 Correct 75 ms 66240 KB Output is correct
10 Correct 63 ms 58212 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 55108 KB Output is correct
2 Correct 26 ms 55112 KB Output is correct
3 Correct 26 ms 55136 KB Output is correct
4 Correct 32 ms 55052 KB Output is correct
5 Correct 27 ms 55176 KB Output is correct
6 Correct 33 ms 55124 KB Output is correct
7 Correct 31 ms 55072 KB Output is correct
8 Correct 29 ms 55116 KB Output is correct
9 Correct 31 ms 55132 KB Output is correct
10 Correct 29 ms 55124 KB Output is correct
11 Correct 36 ms 55124 KB Output is correct
12 Correct 33 ms 55016 KB Output is correct
13 Correct 32 ms 55124 KB Output is correct
14 Correct 28 ms 55120 KB Output is correct
15 Correct 27 ms 55136 KB Output is correct
16 Correct 28 ms 55116 KB Output is correct
17 Correct 29 ms 55164 KB Output is correct
18 Correct 28 ms 55124 KB Output is correct
19 Correct 30 ms 55064 KB Output is correct
20 Correct 28 ms 55124 KB Output is correct
21 Correct 34 ms 55040 KB Output is correct
22 Correct 35 ms 55108 KB Output is correct
23 Correct 37 ms 55248 KB Output is correct
24 Correct 28 ms 55204 KB Output is correct
25 Correct 34 ms 55240 KB Output is correct
26 Correct 28 ms 55252 KB Output is correct
27 Correct 35 ms 55324 KB Output is correct
28 Correct 28 ms 55200 KB Output is correct
29 Correct 36 ms 55244 KB Output is correct
30 Correct 30 ms 55224 KB Output is correct
31 Correct 29 ms 55244 KB Output is correct
32 Correct 30 ms 55276 KB Output is correct
33 Correct 29 ms 55252 KB Output is correct
34 Correct 29 ms 55328 KB Output is correct
35 Correct 33 ms 55244 KB Output is correct
36 Correct 36 ms 55104 KB Output is correct
37 Correct 85 ms 58760 KB Output is correct
38 Correct 74 ms 58436 KB Output is correct
39 Correct 62 ms 61180 KB Output is correct
40 Correct 70 ms 63264 KB Output is correct
41 Correct 69 ms 63328 KB Output is correct
42 Correct 68 ms 59120 KB Output is correct
43 Correct 87 ms 58952 KB Output is correct
44 Correct 75 ms 66240 KB Output is correct
45 Correct 63 ms 58212 KB Output is correct
46 Correct 30 ms 55068 KB Output is correct
47 Correct 28 ms 55112 KB Output is correct
48 Correct 34 ms 55096 KB Output is correct
49 Correct 32 ms 55072 KB Output is correct
50 Correct 34 ms 55140 KB Output is correct
51 Correct 30 ms 55060 KB Output is correct
52 Correct 28 ms 55064 KB Output is correct
53 Correct 33 ms 55124 KB Output is correct
54 Correct 30 ms 55028 KB Output is correct
55 Correct 29 ms 55116 KB Output is correct
56 Correct 33 ms 55076 KB Output is correct
57 Correct 29 ms 55356 KB Output is correct
58 Correct 28 ms 55232 KB Output is correct
59 Correct 29 ms 55268 KB Output is correct
60 Correct 35 ms 55324 KB Output is correct
61 Correct 35 ms 55284 KB Output is correct
62 Correct 29 ms 55244 KB Output is correct
63 Correct 33 ms 55264 KB Output is correct
64 Correct 38 ms 55208 KB Output is correct
65 Correct 37 ms 55232 KB Output is correct
66 Correct 31 ms 55244 KB Output is correct
67 Correct 30 ms 55252 KB Output is correct
68 Correct 30 ms 55296 KB Output is correct
69 Correct 34 ms 55344 KB Output is correct
70 Correct 26 ms 55120 KB Output is correct
71 Correct 69 ms 59116 KB Output is correct
72 Correct 68 ms 58648 KB Output is correct
73 Correct 78 ms 61440 KB Output is correct
74 Correct 66 ms 63576 KB Output is correct
75 Correct 69 ms 63604 KB Output is correct
76 Correct 67 ms 59316 KB Output is correct
77 Correct 71 ms 59148 KB Output is correct
78 Correct 80 ms 66400 KB Output is correct
79 Correct 65 ms 58444 KB Output is correct
80 Correct 64 ms 59080 KB Output is correct
81 Correct 68 ms 59488 KB Output is correct
82 Correct 70 ms 59064 KB Output is correct
83 Correct 65 ms 59972 KB Output is correct
84 Correct 53 ms 58532 KB Output is correct
85 Correct 68 ms 64180 KB Output is correct
86 Correct 69 ms 60352 KB Output is correct
87 Correct 64 ms 58896 KB Output is correct
88 Correct 71 ms 65044 KB Output is correct
89 Correct 68 ms 66180 KB Output is correct
90 Correct 68 ms 63572 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 55108 KB Output is correct
2 Correct 26 ms 55112 KB Output is correct
3 Correct 26 ms 55136 KB Output is correct
4 Correct 32 ms 55052 KB Output is correct
5 Correct 27 ms 55176 KB Output is correct
6 Correct 33 ms 55124 KB Output is correct
7 Correct 31 ms 55072 KB Output is correct
8 Correct 29 ms 55116 KB Output is correct
9 Correct 31 ms 55132 KB Output is correct
10 Correct 29 ms 55124 KB Output is correct
11 Correct 36 ms 55124 KB Output is correct
12 Correct 31 ms 55168 KB Output is correct
13 Correct 469 ms 76988 KB Output is correct
14 Correct 401 ms 76368 KB Output is correct
15 Correct 247 ms 78192 KB Output is correct
16 Correct 245 ms 76732 KB Output is correct
17 Correct 364 ms 84448 KB Output is correct
18 Correct 445 ms 132816 KB Output is correct
19 Correct 346 ms 85176 KB Output is correct
20 Correct 33 ms 55016 KB Output is correct
21 Correct 32 ms 55124 KB Output is correct
22 Correct 28 ms 55120 KB Output is correct
23 Correct 27 ms 55136 KB Output is correct
24 Correct 28 ms 55116 KB Output is correct
25 Correct 29 ms 55164 KB Output is correct
26 Correct 28 ms 55124 KB Output is correct
27 Correct 30 ms 55064 KB Output is correct
28 Correct 28 ms 55124 KB Output is correct
29 Correct 34 ms 55040 KB Output is correct
30 Correct 35 ms 55108 KB Output is correct
31 Correct 37 ms 55248 KB Output is correct
32 Correct 28 ms 55204 KB Output is correct
33 Correct 34 ms 55240 KB Output is correct
34 Correct 28 ms 55252 KB Output is correct
35 Correct 35 ms 55324 KB Output is correct
36 Correct 28 ms 55200 KB Output is correct
37 Correct 36 ms 55244 KB Output is correct
38 Correct 30 ms 55224 KB Output is correct
39 Correct 29 ms 55244 KB Output is correct
40 Correct 30 ms 55276 KB Output is correct
41 Correct 29 ms 55252 KB Output is correct
42 Correct 29 ms 55328 KB Output is correct
43 Correct 33 ms 55244 KB Output is correct
44 Correct 36 ms 55104 KB Output is correct
45 Correct 85 ms 58760 KB Output is correct
46 Correct 74 ms 58436 KB Output is correct
47 Correct 62 ms 61180 KB Output is correct
48 Correct 70 ms 63264 KB Output is correct
49 Correct 69 ms 63328 KB Output is correct
50 Correct 68 ms 59120 KB Output is correct
51 Correct 87 ms 58952 KB Output is correct
52 Correct 75 ms 66240 KB Output is correct
53 Correct 63 ms 58212 KB Output is correct
54 Correct 30 ms 55068 KB Output is correct
55 Correct 28 ms 55112 KB Output is correct
56 Correct 34 ms 55096 KB Output is correct
57 Correct 32 ms 55072 KB Output is correct
58 Correct 34 ms 55140 KB Output is correct
59 Correct 30 ms 55060 KB Output is correct
60 Correct 28 ms 55064 KB Output is correct
61 Correct 33 ms 55124 KB Output is correct
62 Correct 30 ms 55028 KB Output is correct
63 Correct 29 ms 55116 KB Output is correct
64 Correct 33 ms 55076 KB Output is correct
65 Correct 29 ms 55356 KB Output is correct
66 Correct 28 ms 55232 KB Output is correct
67 Correct 29 ms 55268 KB Output is correct
68 Correct 35 ms 55324 KB Output is correct
69 Correct 35 ms 55284 KB Output is correct
70 Correct 29 ms 55244 KB Output is correct
71 Correct 33 ms 55264 KB Output is correct
72 Correct 38 ms 55208 KB Output is correct
73 Correct 37 ms 55232 KB Output is correct
74 Correct 31 ms 55244 KB Output is correct
75 Correct 30 ms 55252 KB Output is correct
76 Correct 30 ms 55296 KB Output is correct
77 Correct 34 ms 55344 KB Output is correct
78 Correct 26 ms 55120 KB Output is correct
79 Correct 69 ms 59116 KB Output is correct
80 Correct 68 ms 58648 KB Output is correct
81 Correct 78 ms 61440 KB Output is correct
82 Correct 66 ms 63576 KB Output is correct
83 Correct 69 ms 63604 KB Output is correct
84 Correct 67 ms 59316 KB Output is correct
85 Correct 71 ms 59148 KB Output is correct
86 Correct 80 ms 66400 KB Output is correct
87 Correct 65 ms 58444 KB Output is correct
88 Correct 64 ms 59080 KB Output is correct
89 Correct 68 ms 59488 KB Output is correct
90 Correct 70 ms 59064 KB Output is correct
91 Correct 65 ms 59972 KB Output is correct
92 Correct 53 ms 58532 KB Output is correct
93 Correct 68 ms 64180 KB Output is correct
94 Correct 69 ms 60352 KB Output is correct
95 Correct 64 ms 58896 KB Output is correct
96 Correct 71 ms 65044 KB Output is correct
97 Correct 68 ms 66180 KB Output is correct
98 Correct 68 ms 63572 KB Output is correct
99 Correct 30 ms 55116 KB Output is correct
100 Correct 27 ms 55140 KB Output is correct
101 Correct 29 ms 55148 KB Output is correct
102 Correct 29 ms 55064 KB Output is correct
103 Correct 28 ms 55148 KB Output is correct
104 Correct 33 ms 55092 KB Output is correct
105 Correct 28 ms 55244 KB Output is correct
106 Correct 28 ms 55084 KB Output is correct
107 Correct 35 ms 55040 KB Output is correct
108 Correct 32 ms 55132 KB Output is correct
109 Correct 35 ms 55140 KB Output is correct
110 Correct 28 ms 55024 KB Output is correct
111 Correct 401 ms 81980 KB Output is correct
112 Correct 321 ms 81132 KB Output is correct
113 Correct 229 ms 81532 KB Output is correct
114 Correct 226 ms 78520 KB Output is correct
115 Correct 318 ms 84408 KB Output is correct
116 Correct 412 ms 132816 KB Output is correct
117 Correct 335 ms 85136 KB Output is correct
118 Correct 32 ms 55244 KB Output is correct
119 Correct 30 ms 55252 KB Output is correct
120 Correct 28 ms 55380 KB Output is correct
121 Correct 30 ms 55380 KB Output is correct
122 Correct 29 ms 55248 KB Output is correct
123 Correct 31 ms 55336 KB Output is correct
124 Correct 29 ms 55256 KB Output is correct
125 Correct 32 ms 55252 KB Output is correct
126 Correct 36 ms 55324 KB Output is correct
127 Correct 30 ms 55192 KB Output is correct
128 Correct 29 ms 55304 KB Output is correct
129 Correct 30 ms 55228 KB Output is correct
130 Correct 30 ms 55340 KB Output is correct
131 Correct 29 ms 55124 KB Output is correct
132 Correct 70 ms 59492 KB Output is correct
133 Correct 81 ms 59068 KB Output is correct
134 Correct 63 ms 61620 KB Output is correct
135 Correct 66 ms 63920 KB Output is correct
136 Correct 72 ms 64096 KB Output is correct
137 Correct 71 ms 59592 KB Output is correct
138 Correct 71 ms 59324 KB Output is correct
139 Correct 73 ms 66676 KB Output is correct
140 Correct 59 ms 58448 KB Output is correct
141 Correct 65 ms 59080 KB Output is correct
142 Correct 79 ms 59468 KB Output is correct
143 Correct 67 ms 59032 KB Output is correct
144 Correct 58 ms 59940 KB Output is correct
145 Correct 52 ms 58572 KB Output is correct
146 Correct 72 ms 64192 KB Output is correct
147 Correct 67 ms 60408 KB Output is correct
148 Correct 64 ms 58852 KB Output is correct
149 Correct 69 ms 65012 KB Output is correct
150 Correct 69 ms 66188 KB Output is correct
151 Correct 77 ms 63576 KB Output is correct
152 Correct 1841 ms 162088 KB Output is correct
153 Correct 1688 ms 169428 KB Output is correct
154 Correct 1851 ms 164668 KB Output is correct
155 Correct 926 ms 187124 KB Output is correct
156 Correct 774 ms 148552 KB Output is correct
157 Correct 1651 ms 154844 KB Output is correct
158 Correct 1698 ms 186288 KB Output is correct
159 Correct 1844 ms 300220 KB Output is correct
160 Correct 1929 ms 277944 KB Output is correct
161 Correct 1569 ms 144956 KB Output is correct
162 Correct 1644 ms 149848 KB Output is correct