oj.uz

답안 #415691

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
415691 2021-06-01T11:28:56 Z KoD The short shank; Redemption (BOI21_prison) C++17
100 / 100
 303 ms 182552 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 read_int() {
    char c = getchar_unlocked();
    while (c < '0' or '9' < c) {
        c = getchar_unlocked();
    }
    int x = 0;
    while ('0' <= c and c <= '9') {
        x = x * 10 + (c - '0');
        c = getchar_unlocked();
    }
    return x;
}

int main() {
    const int N = read_int();
    const int D = read_int();
    const int T = read_int();
    Vec<int> A(N);
    for (auto& x : A) {
        x = read_int();
    }
    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

# 결과 실행 시간 메모리 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 41 ms 7620 KB Output is correct
3 Correct 37 ms 7612 KB Output is correct
4 Correct 42 ms 10680 KB Output is correct
5 Correct 37 ms 6848 KB Output is correct
6 Correct 39 ms 11448 KB Output is correct
7 Correct 78 ms 61364 KB Output is correct
8 Correct 42 ms 11968 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 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 1 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 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 8 ms 1388 KB Output is correct
3 Correct 7 ms 1480 KB Output is correct
4 Correct 9 ms 5064 KB Output is correct
5 Correct 11 ms 6856 KB Output is correct
6 Correct 11 ms 6756 KB Output is correct
7 Correct 6 ms 2120 KB Output is correct
8 Correct 6 ms 1868 KB Output is correct
9 Correct 13 ms 9540 KB Output is correct
10 Correct 5 ms 1488 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 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 1 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 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 8 ms 1388 KB Output is correct
38 Correct 7 ms 1480 KB Output is correct
39 Correct 9 ms 5064 KB Output is correct
40 Correct 11 ms 6856 KB Output is correct
41 Correct 11 ms 6756 KB Output is correct
42 Correct 6 ms 2120 KB Output is correct
43 Correct 6 ms 1868 KB Output is correct
44 Correct 13 ms 9540 KB Output is correct
45 Correct 5 ms 1488 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 2 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 2 ms 332 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 7 ms 1356 KB Output is correct
72 Correct 7 ms 1480 KB Output is correct
73 Correct 9 ms 5064 KB Output is correct
74 Correct 12 ms 6880 KB Output is correct
75 Correct 11 ms 6856 KB Output is correct
76 Correct 6 ms 2124 KB Output is correct
77 Correct 7 ms 1996 KB Output is correct
78 Correct 13 ms 9540 KB Output is correct
79 Correct 5 ms 1488 KB Output is correct
80 Correct 7 ms 1480 KB Output is correct
81 Correct 7 ms 1356 KB Output is correct
82 Correct 8 ms 1480 KB Output is correct
83 Correct 8 ms 2828 KB Output is correct
84 Correct 6 ms 1356 KB Output is correct
85 Correct 10 ms 6940 KB Output is correct
86 Correct 8 ms 2896 KB Output is correct
87 Correct 6 ms 1356 KB Output is correct
88 Correct 11 ms 7880 KB Output is correct
89 Correct 12 ms 9156 KB Output is correct
90 Correct 9 ms 6472 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 41 ms 7620 KB Output is correct
14 Correct 37 ms 7612 KB Output is correct
15 Correct 42 ms 10680 KB Output is correct
16 Correct 37 ms 6848 KB Output is correct
17 Correct 39 ms 11448 KB Output is correct
18 Correct 78 ms 61364 KB Output is correct
19 Correct 42 ms 11968 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 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 1 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 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 2 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 2 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 8 ms 1388 KB Output is correct
46 Correct 7 ms 1480 KB Output is correct
47 Correct 9 ms 5064 KB Output is correct
48 Correct 11 ms 6856 KB Output is correct
49 Correct 11 ms 6756 KB Output is correct
50 Correct 6 ms 2120 KB Output is correct
51 Correct 6 ms 1868 KB Output is correct
52 Correct 13 ms 9540 KB Output is correct
53 Correct 5 ms 1488 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 2 ms 332 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 2 ms 332 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 1 ms 332 KB Output is correct
74 Correct 1 ms 332 KB Output is correct
75 Correct 1 ms 332 KB Output is correct
76 Correct 1 ms 332 KB Output is correct
77 Correct 1 ms 332 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 7 ms 1356 KB Output is correct
80 Correct 7 ms 1480 KB Output is correct
81 Correct 9 ms 5064 KB Output is correct
82 Correct 12 ms 6880 KB Output is correct
83 Correct 11 ms 6856 KB Output is correct
84 Correct 6 ms 2124 KB Output is correct
85 Correct 7 ms 1996 KB Output is correct
86 Correct 13 ms 9540 KB Output is correct
87 Correct 5 ms 1488 KB Output is correct
88 Correct 7 ms 1480 KB Output is correct
89 Correct 7 ms 1356 KB Output is correct
90 Correct 8 ms 1480 KB Output is correct
91 Correct 8 ms 2828 KB Output is correct
92 Correct 6 ms 1356 KB Output is correct
93 Correct 10 ms 6940 KB Output is correct
94 Correct 8 ms 2896 KB Output is correct
95 Correct 6 ms 1356 KB Output is correct
96 Correct 11 ms 7880 KB Output is correct
97 Correct 12 ms 9156 KB Output is correct
98 Correct 9 ms 6472 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
100 Correct 1 ms 256 KB Output is correct
101 Correct 1 ms 204 KB Output is correct
102 Correct 1 ms 204 KB Output is correct
103 Correct 1 ms 204 KB Output is correct
104 Correct 1 ms 204 KB Output is correct
105 Correct 1 ms 204 KB Output is correct
106 Correct 1 ms 204 KB Output is correct
107 Correct 1 ms 204 KB Output is correct
108 Correct 1 ms 204 KB Output is correct
109 Correct 1 ms 204 KB Output is correct
110 Correct 1 ms 204 KB Output is correct
111 Correct 43 ms 7560 KB Output is correct
112 Correct 36 ms 7620 KB Output is correct
113 Correct 40 ms 10812 KB Output is correct
114 Correct 37 ms 6852 KB Output is correct
115 Correct 39 ms 11460 KB Output is correct
116 Correct 81 ms 61356 KB Output is correct
117 Correct 41 ms 11992 KB Output is correct
118 Correct 1 ms 332 KB Output is correct
119 Correct 1 ms 456 KB Output is correct
120 Correct 1 ms 332 KB Output is correct
121 Correct 1 ms 332 KB Output is correct
122 Correct 1 ms 332 KB Output is correct
123 Correct 1 ms 332 KB Output is correct
124 Correct 1 ms 332 KB Output is correct
125 Correct 1 ms 332 KB Output is correct
126 Correct 1 ms 332 KB Output is correct
127 Correct 1 ms 332 KB Output is correct
128 Correct 1 ms 332 KB Output is correct
129 Correct 1 ms 332 KB Output is correct
130 Correct 1 ms 332 KB Output is correct
131 Correct 1 ms 204 KB Output is correct
132 Correct 7 ms 1356 KB Output is correct
133 Correct 7 ms 1480 KB Output is correct
134 Correct 10 ms 5096 KB Output is correct
135 Correct 10 ms 6856 KB Output is correct
136 Correct 10 ms 6856 KB Output is correct
137 Correct 6 ms 2252 KB Output is correct
138 Correct 6 ms 1868 KB Output is correct
139 Correct 12 ms 9552 KB Output is correct
140 Correct 5 ms 1488 KB Output is correct
141 Correct 7 ms 1480 KB Output is correct
142 Correct 7 ms 1360 KB Output is correct
143 Correct 7 ms 1480 KB Output is correct
144 Correct 8 ms 2828 KB Output is correct
145 Correct 7 ms 1236 KB Output is correct
146 Correct 11 ms 6960 KB Output is correct
147 Correct 8 ms 2936 KB Output is correct
148 Correct 6 ms 1476 KB Output is correct
149 Correct 10 ms 7880 KB Output is correct
150 Correct 11 ms 9156 KB Output is correct
151 Correct 9 ms 6472 KB Output is correct
152 Correct 167 ms 29748 KB Output is correct
153 Correct 174 ms 29736 KB Output is correct
154 Correct 164 ms 29800 KB Output is correct
155 Correct 205 ms 72716 KB Output is correct
156 Correct 145 ms 26272 KB Output is correct
157 Correct 134 ms 26624 KB Output is correct
158 Correct 167 ms 58000 KB Output is correct
159 Correct 303 ms 182552 KB Output is correct
160 Correct 285 ms 161816 KB Output is correct
161 Correct 114 ms 28336 KB Output is correct
162 Correct 124 ms 34212 KB Output is correct