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답안 #540527

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
540527 2022-03-20T16:57:13 Z Stickfish The short shank; Redemption (BOI21_prison) C++17
100 / 100
 545 ms 308320 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

const int MAXN = 2e6 + 123;
vector<int> edg[MAXN];
int rt[MAXN];

int init(int n) {
    int t;
    cin >> t;
    vector<int> a(n);
    for (int i = 0; i < n; ++i)
        cin >> a[i];
    vector<pair<int, int>> stck;
    vector<int> vl(n);
    int ans = 0;
    for (int i = 0; i < n; ++i) {
        stck.push_back({a[i], i});
        while (stck.size() && t - stck.back().first < i - stck.back().second)
            stck.pop_back();
        if (stck.size()) {
            vl[i] = stck.back().second;
        } else {
            ++ans;
            vl[i] = n + 1;
        }
    }
    //for (int i = 0; i < n; ++i)
        //cout << vl[i] << ' ';
    //cout << endl;
    vector<int> way;
    for (int i = n - 1; i >= 0; --i) {
        while (way.size() && vl[way.back()] > i) {
            way.pop_back();
        }
        if (vl[i] >= i) {
            rt[i] = -1;
            continue;
        }
        if (vl[i] < i && way.size()) {
            rt[i] = way.back();
            edg[way.back()].push_back(i);
        } else {
            rt[i] = 0;
            edg[0].push_back(i);
        }
        way.push_back(i);
    }
    //for (int i = 0; i < n; ++i) {
        //cout << rt[i] << ' ';
    //}
    //cout << endl;
    return ans;
}

bool cmpsize(vector<int>* v0, vector<int>* v1) {
    return v0->size() < v1->size();
}

vector<int>* dfs(int v) {
    if (edg[v].empty()) {
        vector<int>* ans = new vector<int>(1);
        (*ans)[0] = 1;
        return ans;
    }
    vector<vector<int>*> vs;
    for (auto u : edg[v]) {
        vs.push_back(dfs(u));
    }
    int mxi = max_element(vs.begin(), vs.end(), cmpsize) - vs.begin();
    vector<int>* ans = vs[mxi];
    for (int i = 0; i < vs.size(); ++i) {
        if (i == mxi)
            continue;
        vector<int>* t = vs[i];
        if ((*t)[0] > (*ans)[0])
            swap((*t)[0], (*ans)[0]);
        for (auto x : *t)
            ans->push_back(x);
        delete t;
    }
    ++(*ans)[0];
    return ans;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, d;
    cin >> n >> d;
    int neut = init(n);
    vector<int> vvv = *dfs(0);
    sort(vvv.rbegin(), vvv.rend());
    int ans = 0;
    for (int i = 0; i < vvv.size() && i < d; ++i)
        ans += vvv[i];
    cout << n - ans - neut + 1 << endl;
}

Compilation message

prison.cpp: In function 'std::vector<int>* dfs(int)':
prison.cpp:74:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int>*>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for (int i = 0; i < vs.size(); ++i) {
      |                     ~~^~~~~~~~~~~
prison.cpp: In function 'int main()':
prison.cpp:98:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |     for (int i = 0; i < vvv.size() && i < d; ++i)
      |                     ~~^~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 47388 KB Output is correct
2 Correct 26 ms 47284 KB Output is correct
3 Correct 26 ms 47236 KB Output is correct
4 Correct 26 ms 47384 KB Output is correct
5 Correct 24 ms 47272 KB Output is correct
6 Correct 29 ms 47332 KB Output is correct
7 Correct 25 ms 47188 KB Output is correct
8 Correct 27 ms 47184 KB Output is correct
9 Correct 32 ms 47308 KB Output is correct
10 Correct 25 ms 47300 KB Output is correct
11 Correct 25 ms 47296 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 47260 KB Output is correct
2 Correct 126 ms 67308 KB Output is correct
3 Correct 117 ms 64440 KB Output is correct
4 Correct 117 ms 69168 KB Output is correct
5 Correct 105 ms 62924 KB Output is correct
6 Correct 115 ms 69708 KB Output is correct
7 Correct 178 ms 131396 KB Output is correct
8 Correct 120 ms 72680 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 47388 KB Output is correct
2 Correct 26 ms 47284 KB Output is correct
3 Correct 26 ms 47236 KB Output is correct
4 Correct 26 ms 47384 KB Output is correct
5 Correct 24 ms 47272 KB Output is correct
6 Correct 29 ms 47332 KB Output is correct
7 Correct 25 ms 47188 KB Output is correct
8 Correct 27 ms 47184 KB Output is correct
9 Correct 32 ms 47308 KB Output is correct
10 Correct 25 ms 47300 KB Output is correct
11 Correct 25 ms 47296 KB Output is correct
12 Correct 25 ms 47188 KB Output is correct
13 Correct 25 ms 47316 KB Output is correct
14 Correct 25 ms 47308 KB Output is correct
15 Correct 26 ms 47268 KB Output is correct
16 Correct 26 ms 47300 KB Output is correct
17 Correct 26 ms 47232 KB Output is correct
18 Correct 27 ms 47316 KB Output is correct
19 Correct 26 ms 47192 KB Output is correct
20 Correct 27 ms 47324 KB Output is correct
21 Correct 26 ms 47300 KB Output is correct
22 Correct 25 ms 47260 KB Output is correct
23 Correct 26 ms 47444 KB Output is correct
24 Correct 26 ms 47436 KB Output is correct
25 Correct 27 ms 47368 KB Output is correct
26 Correct 28 ms 47396 KB Output is correct
27 Correct 26 ms 47444 KB Output is correct
28 Correct 29 ms 47444 KB Output is correct
29 Correct 26 ms 47444 KB Output is correct
30 Correct 26 ms 47356 KB Output is correct
31 Correct 25 ms 47448 KB Output is correct
32 Correct 29 ms 47452 KB Output is correct
33 Correct 26 ms 47428 KB Output is correct
34 Correct 27 ms 47444 KB Output is correct
35 Correct 26 ms 47432 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 47292 KB Output is correct
2 Correct 43 ms 50468 KB Output is correct
3 Correct 41 ms 50308 KB Output is correct
4 Correct 42 ms 53740 KB Output is correct
5 Correct 42 ms 56192 KB Output is correct
6 Correct 42 ms 56216 KB Output is correct
7 Correct 38 ms 50584 KB Output is correct
8 Correct 42 ms 50288 KB Output is correct
9 Correct 43 ms 59792 KB Output is correct
10 Correct 38 ms 50628 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 47388 KB Output is correct
2 Correct 26 ms 47284 KB Output is correct
3 Correct 26 ms 47236 KB Output is correct
4 Correct 26 ms 47384 KB Output is correct
5 Correct 24 ms 47272 KB Output is correct
6 Correct 29 ms 47332 KB Output is correct
7 Correct 25 ms 47188 KB Output is correct
8 Correct 27 ms 47184 KB Output is correct
9 Correct 32 ms 47308 KB Output is correct
10 Correct 25 ms 47300 KB Output is correct
11 Correct 25 ms 47296 KB Output is correct
12 Correct 25 ms 47188 KB Output is correct
13 Correct 25 ms 47316 KB Output is correct
14 Correct 25 ms 47308 KB Output is correct
15 Correct 26 ms 47268 KB Output is correct
16 Correct 26 ms 47300 KB Output is correct
17 Correct 26 ms 47232 KB Output is correct
18 Correct 27 ms 47316 KB Output is correct
19 Correct 26 ms 47192 KB Output is correct
20 Correct 27 ms 47324 KB Output is correct
21 Correct 26 ms 47300 KB Output is correct
22 Correct 25 ms 47260 KB Output is correct
23 Correct 26 ms 47444 KB Output is correct
24 Correct 26 ms 47436 KB Output is correct
25 Correct 27 ms 47368 KB Output is correct
26 Correct 28 ms 47396 KB Output is correct
27 Correct 26 ms 47444 KB Output is correct
28 Correct 29 ms 47444 KB Output is correct
29 Correct 26 ms 47444 KB Output is correct
30 Correct 26 ms 47356 KB Output is correct
31 Correct 25 ms 47448 KB Output is correct
32 Correct 29 ms 47452 KB Output is correct
33 Correct 26 ms 47428 KB Output is correct
34 Correct 27 ms 47444 KB Output is correct
35 Correct 26 ms 47432 KB Output is correct
36 Correct 26 ms 47292 KB Output is correct
37 Correct 43 ms 50468 KB Output is correct
38 Correct 41 ms 50308 KB Output is correct
39 Correct 42 ms 53740 KB Output is correct
40 Correct 42 ms 56192 KB Output is correct
41 Correct 42 ms 56216 KB Output is correct
42 Correct 38 ms 50584 KB Output is correct
43 Correct 42 ms 50288 KB Output is correct
44 Correct 43 ms 59792 KB Output is correct
45 Correct 38 ms 50628 KB Output is correct
46 Correct 25 ms 47304 KB Output is correct
47 Correct 26 ms 47316 KB Output is correct
48 Correct 27 ms 47240 KB Output is correct
49 Correct 25 ms 47288 KB Output is correct
50 Correct 25 ms 47260 KB Output is correct
51 Correct 29 ms 47292 KB Output is correct
52 Correct 27 ms 47180 KB Output is correct
53 Correct 26 ms 47180 KB Output is correct
54 Correct 30 ms 47276 KB Output is correct
55 Correct 25 ms 47304 KB Output is correct
56 Correct 26 ms 47320 KB Output is correct
57 Correct 26 ms 47456 KB Output is correct
58 Correct 26 ms 47408 KB Output is correct
59 Correct 26 ms 47440 KB Output is correct
60 Correct 29 ms 47416 KB Output is correct
61 Correct 26 ms 47408 KB Output is correct
62 Correct 26 ms 47376 KB Output is correct
63 Correct 27 ms 47436 KB Output is correct
64 Correct 26 ms 47432 KB Output is correct
65 Correct 26 ms 47444 KB Output is correct
66 Correct 30 ms 47444 KB Output is correct
67 Correct 26 ms 47448 KB Output is correct
68 Correct 27 ms 47508 KB Output is correct
69 Correct 26 ms 47440 KB Output is correct
70 Correct 26 ms 47272 KB Output is correct
71 Correct 42 ms 50500 KB Output is correct
72 Correct 39 ms 50264 KB Output is correct
73 Correct 41 ms 53720 KB Output is correct
74 Correct 42 ms 56192 KB Output is correct
75 Correct 43 ms 56224 KB Output is correct
76 Correct 40 ms 50592 KB Output is correct
77 Correct 40 ms 50464 KB Output is correct
78 Correct 59 ms 59724 KB Output is correct
79 Correct 39 ms 50584 KB Output is correct
80 Correct 40 ms 50260 KB Output is correct
81 Correct 42 ms 50528 KB Output is correct
82 Correct 42 ms 50312 KB Output is correct
83 Correct 39 ms 51324 KB Output is correct
84 Correct 35 ms 49496 KB Output is correct
85 Correct 41 ms 56540 KB Output is correct
86 Correct 47 ms 52104 KB Output is correct
87 Correct 39 ms 49920 KB Output is correct
88 Correct 41 ms 57636 KB Output is correct
89 Correct 43 ms 59400 KB Output is correct
90 Correct 42 ms 56508 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 47388 KB Output is correct
2 Correct 26 ms 47284 KB Output is correct
3 Correct 26 ms 47236 KB Output is correct
4 Correct 26 ms 47384 KB Output is correct
5 Correct 24 ms 47272 KB Output is correct
6 Correct 29 ms 47332 KB Output is correct
7 Correct 25 ms 47188 KB Output is correct
8 Correct 27 ms 47184 KB Output is correct
9 Correct 32 ms 47308 KB Output is correct
10 Correct 25 ms 47300 KB Output is correct
11 Correct 25 ms 47296 KB Output is correct
12 Correct 26 ms 47260 KB Output is correct
13 Correct 126 ms 67308 KB Output is correct
14 Correct 117 ms 64440 KB Output is correct
15 Correct 117 ms 69168 KB Output is correct
16 Correct 105 ms 62924 KB Output is correct
17 Correct 115 ms 69708 KB Output is correct
18 Correct 178 ms 131396 KB Output is correct
19 Correct 120 ms 72680 KB Output is correct
20 Correct 25 ms 47188 KB Output is correct
21 Correct 25 ms 47316 KB Output is correct
22 Correct 25 ms 47308 KB Output is correct
23 Correct 26 ms 47268 KB Output is correct
24 Correct 26 ms 47300 KB Output is correct
25 Correct 26 ms 47232 KB Output is correct
26 Correct 27 ms 47316 KB Output is correct
27 Correct 26 ms 47192 KB Output is correct
28 Correct 27 ms 47324 KB Output is correct
29 Correct 26 ms 47300 KB Output is correct
30 Correct 25 ms 47260 KB Output is correct
31 Correct 26 ms 47444 KB Output is correct
32 Correct 26 ms 47436 KB Output is correct
33 Correct 27 ms 47368 KB Output is correct
34 Correct 28 ms 47396 KB Output is correct
35 Correct 26 ms 47444 KB Output is correct
36 Correct 29 ms 47444 KB Output is correct
37 Correct 26 ms 47444 KB Output is correct
38 Correct 26 ms 47356 KB Output is correct
39 Correct 25 ms 47448 KB Output is correct
40 Correct 29 ms 47452 KB Output is correct
41 Correct 26 ms 47428 KB Output is correct
42 Correct 27 ms 47444 KB Output is correct
43 Correct 26 ms 47432 KB Output is correct
44 Correct 26 ms 47292 KB Output is correct
45 Correct 43 ms 50468 KB Output is correct
46 Correct 41 ms 50308 KB Output is correct
47 Correct 42 ms 53740 KB Output is correct
48 Correct 42 ms 56192 KB Output is correct
49 Correct 42 ms 56216 KB Output is correct
50 Correct 38 ms 50584 KB Output is correct
51 Correct 42 ms 50288 KB Output is correct
52 Correct 43 ms 59792 KB Output is correct
53 Correct 38 ms 50628 KB Output is correct
54 Correct 25 ms 47304 KB Output is correct
55 Correct 26 ms 47316 KB Output is correct
56 Correct 27 ms 47240 KB Output is correct
57 Correct 25 ms 47288 KB Output is correct
58 Correct 25 ms 47260 KB Output is correct
59 Correct 29 ms 47292 KB Output is correct
60 Correct 27 ms 47180 KB Output is correct
61 Correct 26 ms 47180 KB Output is correct
62 Correct 30 ms 47276 KB Output is correct
63 Correct 25 ms 47304 KB Output is correct
64 Correct 26 ms 47320 KB Output is correct
65 Correct 26 ms 47456 KB Output is correct
66 Correct 26 ms 47408 KB Output is correct
67 Correct 26 ms 47440 KB Output is correct
68 Correct 29 ms 47416 KB Output is correct
69 Correct 26 ms 47408 KB Output is correct
70 Correct 26 ms 47376 KB Output is correct
71 Correct 27 ms 47436 KB Output is correct
72 Correct 26 ms 47432 KB Output is correct
73 Correct 26 ms 47444 KB Output is correct
74 Correct 30 ms 47444 KB Output is correct
75 Correct 26 ms 47448 KB Output is correct
76 Correct 27 ms 47508 KB Output is correct
77 Correct 26 ms 47440 KB Output is correct
78 Correct 26 ms 47272 KB Output is correct
79 Correct 42 ms 50500 KB Output is correct
80 Correct 39 ms 50264 KB Output is correct
81 Correct 41 ms 53720 KB Output is correct
82 Correct 42 ms 56192 KB Output is correct
83 Correct 43 ms 56224 KB Output is correct
84 Correct 40 ms 50592 KB Output is correct
85 Correct 40 ms 50464 KB Output is correct
86 Correct 59 ms 59724 KB Output is correct
87 Correct 39 ms 50584 KB Output is correct
88 Correct 40 ms 50260 KB Output is correct
89 Correct 42 ms 50528 KB Output is correct
90 Correct 42 ms 50312 KB Output is correct
91 Correct 39 ms 51324 KB Output is correct
92 Correct 35 ms 49496 KB Output is correct
93 Correct 41 ms 56540 KB Output is correct
94 Correct 47 ms 52104 KB Output is correct
95 Correct 39 ms 49920 KB Output is correct
96 Correct 41 ms 57636 KB Output is correct
97 Correct 43 ms 59400 KB Output is correct
98 Correct 42 ms 56508 KB Output is correct
99 Correct 25 ms 47260 KB Output is correct
100 Correct 26 ms 47348 KB Output is correct
101 Correct 26 ms 47316 KB Output is correct
102 Correct 26 ms 47288 KB Output is correct
103 Correct 24 ms 47220 KB Output is correct
104 Correct 34 ms 47388 KB Output is correct
105 Correct 26 ms 47188 KB Output is correct
106 Correct 26 ms 47316 KB Output is correct
107 Correct 26 ms 47316 KB Output is correct
108 Correct 25 ms 47232 KB Output is correct
109 Correct 25 ms 47188 KB Output is correct
110 Correct 27 ms 47188 KB Output is correct
111 Correct 126 ms 67300 KB Output is correct
112 Correct 117 ms 64248 KB Output is correct
113 Correct 131 ms 69212 KB Output is correct
114 Correct 109 ms 62944 KB Output is correct
115 Correct 124 ms 69744 KB Output is correct
116 Correct 156 ms 131272 KB Output is correct
117 Correct 124 ms 72700 KB Output is correct
118 Correct 28 ms 47352 KB Output is correct
119 Correct 28 ms 47436 KB Output is correct
120 Correct 30 ms 47388 KB Output is correct
121 Correct 26 ms 47444 KB Output is correct
122 Correct 28 ms 47440 KB Output is correct
123 Correct 28 ms 47412 KB Output is correct
124 Correct 26 ms 47468 KB Output is correct
125 Correct 27 ms 47388 KB Output is correct
126 Correct 26 ms 47444 KB Output is correct
127 Correct 27 ms 47428 KB Output is correct
128 Correct 27 ms 47384 KB Output is correct
129 Correct 28 ms 47424 KB Output is correct
130 Correct 26 ms 47476 KB Output is correct
131 Correct 27 ms 47248 KB Output is correct
132 Correct 39 ms 50588 KB Output is correct
133 Correct 41 ms 50276 KB Output is correct
134 Correct 41 ms 53748 KB Output is correct
135 Correct 44 ms 56332 KB Output is correct
136 Correct 42 ms 56212 KB Output is correct
137 Correct 39 ms 50556 KB Output is correct
138 Correct 42 ms 50320 KB Output is correct
139 Correct 45 ms 59792 KB Output is correct
140 Correct 38 ms 50556 KB Output is correct
141 Correct 42 ms 50256 KB Output is correct
142 Correct 42 ms 50476 KB Output is correct
143 Correct 40 ms 50260 KB Output is correct
144 Correct 39 ms 51324 KB Output is correct
145 Correct 42 ms 49484 KB Output is correct
146 Correct 46 ms 56568 KB Output is correct
147 Correct 43 ms 52100 KB Output is correct
148 Correct 39 ms 49876 KB Output is correct
149 Correct 40 ms 57640 KB Output is correct
150 Correct 43 ms 59320 KB Output is correct
151 Correct 45 ms 56504 KB Output is correct
152 Correct 418 ms 127440 KB Output is correct
153 Correct 428 ms 130164 KB Output is correct
154 Correct 418 ms 124912 KB Output is correct
155 Correct 457 ms 166144 KB Output is correct
156 Correct 347 ms 110016 KB Output is correct
157 Correct 347 ms 107660 KB Output is correct
158 Correct 399 ms 152772 KB Output is correct
159 Correct 545 ms 308320 KB Output is correct
160 Correct 528 ms 290804 KB Output is correct
161 Correct 371 ms 125644 KB Output is correct
162 Correct 381 ms 131432 KB Output is correct