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Submission #415683

# Submission time Handle Problem Language Result Execution time Memory
415683 2021-06-01T11:09:24 Z KoD The short shank; Redemption (BOI21_prison) C++17
100 / 100
 481 ms 199592 KB 
#include <bits/stdc++.h>

template <class T> using Vec = std::vector<T>;

template <class F> struct RecLambda : private F {
    explicit RecLambda(F&& f): F(std::forward<F>(f)) {}
    template <class... Args> decltype(auto) operator() (Args&&... args) const {
        return F::operator()(*this, std::forward<Args>(args)...);
    }
};

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int N, D, T;
    std::cin >> N >> D >> T;
    Vec<int> A(N);
    for (auto& x : A) {
        std::cin >> x;
    }
    Vec<int> match(N);
    Vec<char> done(N);
    Vec<int> stack;
    int ans = N;
    for (int i = 0; i < N; ++i) {
        if (A[i] <= T) {
            done[i] = true;
            stack.push_back(i);
        }
        else {
            while (!stack.empty()) {
                const int j = stack.back();
                if (j + (T - A[j]) >= i) {
                    break;
                }
                stack.pop_back();
            }
            if (stack.empty()) {
                done[i] = true;
                ans -= 1;
            }
            else {
                match[i] = stack.back();
            }
        }
    }
    Vec<int> gain, remain;
    for (int i = 0; i < N; ++i) {
        if (!done[i]) {
            remain.push_back(i);
        }
    }
    const auto dfs = RecLambda([&](auto&& dfs, const int u) -> int {
        Vec<int> path;
        while (!remain.empty() and match[u] <= remain.back()) {
            const int v = remain.back();
            remain.pop_back();
            path.push_back(dfs(v));
        }
        if (path.empty()) {
            return 1;
        }
        std::sort(path.begin(), path.end());
        const int ret = path.back() + 1;
        path.pop_back();
        std::copy(path.begin(), path.end(), std::back_inserter(gain));
        return ret;
    });
    while (!remain.empty()) {
        const int u = remain.back();
        remain.pop_back();
        gain.push_back(dfs(u));
    }
    std::sort(gain.rbegin(), gain.rend());
    for (int i = 0; i < std::min(D, (int) gain.size()); ++i) {
        ans -= gain[i];
    }
    std::cout << ans << '\n';
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 280 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 308 KB Output is correct
11 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 90 ms 10064 KB Output is correct
3 Correct 84 ms 9036 KB Output is correct
4 Correct 85 ms 12116 KB Output is correct
5 Correct 74 ms 8252 KB Output is correct
6 Correct 100 ms 12884 KB Output is correct
7 Correct 136 ms 65348 KB Output is correct
8 Correct 88 ms 15932 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 280 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 308 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 308 KB Output is correct
13 Correct 2 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 2 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 2 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 2 ms 316 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 3 ms 324 KB Output is correct
27 Correct 2 ms 324 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 3 ms 344 KB Output is correct
31 Correct 3 ms 332 KB Output is correct
32 Correct 2 ms 328 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 2 ms 332 KB Output is correct
35 Correct 2 ms 460 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 23 ms 2136 KB Output is correct
3 Correct 14 ms 2248 KB Output is correct
4 Correct 19 ms 5548 KB Output is correct
5 Correct 18 ms 7512 KB Output is correct
6 Correct 22 ms 7564 KB Output is correct
7 Correct 13 ms 2636 KB Output is correct
8 Correct 16 ms 2476 KB Output is correct
9 Correct 21 ms 10068 KB Output is correct
10 Correct 11 ms 1992 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 280 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 308 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 308 KB Output is correct
13 Correct 2 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 2 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 2 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 2 ms 316 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 3 ms 324 KB Output is correct
27 Correct 2 ms 324 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 2 ms 332 KB Output is correct
30 Correct 3 ms 344 KB Output is correct
31 Correct 3 ms 332 KB Output is correct
32 Correct 2 ms 328 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 2 ms 332 KB Output is correct
35 Correct 2 ms 460 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 23 ms 2136 KB Output is correct
38 Correct 14 ms 2248 KB Output is correct
39 Correct 19 ms 5548 KB Output is correct
40 Correct 18 ms 7512 KB Output is correct
41 Correct 22 ms 7564 KB Output is correct
42 Correct 13 ms 2636 KB Output is correct
43 Correct 16 ms 2476 KB Output is correct
44 Correct 21 ms 10068 KB Output is correct
45 Correct 11 ms 1992 KB Output is correct
46 Correct 1 ms 368 KB Output is correct
47 Correct 2 ms 400 KB Output is correct
48 Correct 2 ms 320 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 2 ms 332 KB Output is correct
52 Correct 1 ms 316 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 2 ms 204 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 2 ms 380 KB Output is correct
58 Correct 3 ms 372 KB Output is correct
59 Correct 3 ms 328 KB Output is correct
60 Correct 3 ms 332 KB Output is correct
61 Correct 3 ms 332 KB Output is correct
62 Correct 2 ms 332 KB Output is correct
63 Correct 2 ms 332 KB Output is correct
64 Correct 3 ms 324 KB Output is correct
65 Correct 2 ms 332 KB Output is correct
66 Correct 3 ms 332 KB Output is correct
67 Correct 2 ms 352 KB Output is correct
68 Correct 3 ms 328 KB Output is correct
69 Correct 2 ms 460 KB Output is correct
70 Correct 1 ms 320 KB Output is correct
71 Correct 15 ms 2136 KB Output is correct
72 Correct 15 ms 2216 KB Output is correct
73 Correct 18 ms 5592 KB Output is correct
74 Correct 24 ms 7504 KB Output is correct
75 Correct 17 ms 7628 KB Output is correct
76 Correct 12 ms 2636 KB Output is correct
77 Correct 17 ms 2392 KB Output is correct
78 Correct 18 ms 10060 KB Output is correct
79 Correct 11 ms 1984 KB Output is correct
80 Correct 14 ms 2268 KB Output is correct
81 Correct 15 ms 2140 KB Output is correct
82 Correct 14 ms 2248 KB Output is correct
83 Correct 15 ms 3340 KB Output is correct
84 Correct 11 ms 1540 KB Output is correct
85 Correct 23 ms 7584 KB Output is correct
86 Correct 17 ms 3492 KB Output is correct
87 Correct 15 ms 1992 KB Output is correct
88 Correct 16 ms 8420 KB Output is correct
89 Correct 20 ms 9620 KB Output is correct
90 Correct 16 ms 7008 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 280 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 308 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 90 ms 10064 KB Output is correct
14 Correct 84 ms 9036 KB Output is correct
15 Correct 85 ms 12116 KB Output is correct
16 Correct 74 ms 8252 KB Output is correct
17 Correct 100 ms 12884 KB Output is correct
18 Correct 136 ms 65348 KB Output is correct
19 Correct 88 ms 15932 KB Output is correct
20 Correct 1 ms 308 KB Output is correct
21 Correct 2 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 2 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 2 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 2 ms 348 KB Output is correct
30 Correct 2 ms 316 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 2 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 3 ms 324 KB Output is correct
35 Correct 2 ms 324 KB Output is correct
36 Correct 2 ms 332 KB Output is correct
37 Correct 2 ms 332 KB Output is correct
38 Correct 3 ms 344 KB Output is correct
39 Correct 3 ms 332 KB Output is correct
40 Correct 2 ms 328 KB Output is correct
41 Correct 2 ms 332 KB Output is correct
42 Correct 2 ms 332 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 23 ms 2136 KB Output is correct
46 Correct 14 ms 2248 KB Output is correct
47 Correct 19 ms 5548 KB Output is correct
48 Correct 18 ms 7512 KB Output is correct
49 Correct 22 ms 7564 KB Output is correct
50 Correct 13 ms 2636 KB Output is correct
51 Correct 16 ms 2476 KB Output is correct
52 Correct 21 ms 10068 KB Output is correct
53 Correct 11 ms 1992 KB Output is correct
54 Correct 1 ms 368 KB Output is correct
55 Correct 2 ms 400 KB Output is correct
56 Correct 2 ms 320 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 2 ms 332 KB Output is correct
60 Correct 1 ms 316 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 2 ms 204 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 2 ms 380 KB Output is correct
66 Correct 3 ms 372 KB Output is correct
67 Correct 3 ms 328 KB Output is correct
68 Correct 3 ms 332 KB Output is correct
69 Correct 3 ms 332 KB Output is correct
70 Correct 2 ms 332 KB Output is correct
71 Correct 2 ms 332 KB Output is correct
72 Correct 3 ms 324 KB Output is correct
73 Correct 2 ms 332 KB Output is correct
74 Correct 3 ms 332 KB Output is correct
75 Correct 2 ms 352 KB Output is correct
76 Correct 3 ms 328 KB Output is correct
77 Correct 2 ms 460 KB Output is correct
78 Correct 1 ms 320 KB Output is correct
79 Correct 15 ms 2136 KB Output is correct
80 Correct 15 ms 2216 KB Output is correct
81 Correct 18 ms 5592 KB Output is correct
82 Correct 24 ms 7504 KB Output is correct
83 Correct 17 ms 7628 KB Output is correct
84 Correct 12 ms 2636 KB Output is correct
85 Correct 17 ms 2392 KB Output is correct
86 Correct 18 ms 10060 KB Output is correct
87 Correct 11 ms 1984 KB Output is correct
88 Correct 14 ms 2268 KB Output is correct
89 Correct 15 ms 2140 KB Output is correct
90 Correct 14 ms 2248 KB Output is correct
91 Correct 15 ms 3340 KB Output is correct
92 Correct 11 ms 1540 KB Output is correct
93 Correct 23 ms 7584 KB Output is correct
94 Correct 17 ms 3492 KB Output is correct
95 Correct 15 ms 1992 KB Output is correct
96 Correct 16 ms 8420 KB Output is correct
97 Correct 20 ms 9620 KB Output is correct
98 Correct 16 ms 7008 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
100 Correct 1 ms 204 KB Output is correct
101 Correct 1 ms 332 KB Output is correct
102 Correct 1 ms 332 KB Output is correct
103 Correct 1 ms 332 KB Output is correct
104 Correct 1 ms 320 KB Output is correct
105 Correct 2 ms 204 KB Output is correct
106 Correct 1 ms 208 KB Output is correct
107 Correct 1 ms 332 KB Output is correct
108 Correct 1 ms 204 KB Output is correct
109 Correct 2 ms 204 KB Output is correct
110 Correct 1 ms 204 KB Output is correct
111 Correct 103 ms 12496 KB Output is correct
112 Correct 94 ms 12492 KB Output is correct
113 Correct 86 ms 14156 KB Output is correct
114 Correct 75 ms 8772 KB Output is correct
115 Correct 84 ms 15312 KB Output is correct
116 Correct 138 ms 65332 KB Output is correct
117 Correct 86 ms 15996 KB Output is correct
118 Correct 3 ms 332 KB Output is correct
119 Correct 3 ms 332 KB Output is correct
120 Correct 2 ms 332 KB Output is correct
121 Correct 2 ms 328 KB Output is correct
122 Correct 2 ms 324 KB Output is correct
123 Correct 2 ms 376 KB Output is correct
124 Correct 2 ms 332 KB Output is correct
125 Correct 2 ms 332 KB Output is correct
126 Correct 2 ms 332 KB Output is correct
127 Correct 2 ms 328 KB Output is correct
128 Correct 3 ms 332 KB Output is correct
129 Correct 2 ms 332 KB Output is correct
130 Correct 2 ms 460 KB Output is correct
131 Correct 2 ms 204 KB Output is correct
132 Correct 19 ms 2108 KB Output is correct
133 Correct 15 ms 2124 KB Output is correct
134 Correct 15 ms 5516 KB Output is correct
135 Correct 19 ms 7508 KB Output is correct
136 Correct 17 ms 7624 KB Output is correct
137 Correct 14 ms 2656 KB Output is correct
138 Correct 12 ms 2424 KB Output is correct
139 Correct 21 ms 10092 KB Output is correct
140 Correct 11 ms 2012 KB Output is correct
141 Correct 15 ms 2248 KB Output is correct
142 Correct 20 ms 2140 KB Output is correct
143 Correct 19 ms 2240 KB Output is correct
144 Correct 14 ms 3340 KB Output is correct
145 Correct 14 ms 1484 KB Output is correct
146 Correct 20 ms 7704 KB Output is correct
147 Correct 14 ms 3548 KB Output is correct
148 Correct 12 ms 1996 KB Output is correct
149 Correct 16 ms 8392 KB Output is correct
150 Correct 18 ms 9600 KB Output is correct
151 Correct 17 ms 7016 KB Output is correct
152 Correct 381 ms 49268 KB Output is correct
153 Correct 390 ms 49148 KB Output is correct
154 Correct 372 ms 49236 KB Output is correct
155 Correct 379 ms 86552 KB Output is correct
156 Correct 300 ms 33768 KB Output is correct
157 Correct 364 ms 43596 KB Output is correct
158 Correct 387 ms 75068 KB Output is correct
159 Correct 481 ms 199592 KB Output is correct
160 Correct 459 ms 178860 KB Output is correct
161 Correct 305 ms 45084 KB Output is correct
162 Correct 344 ms 50912 KB Output is correct