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Submission #943042

# Submission time Handle Problem Language Result Execution time Memory
943042 2024-03-11T07:50:51 Z salmon A Difficult(y) Choice (BOI21_books) C++14
100 / 100
 8 ms 1368 KB 
#include <bits/stdc++.h>
#include "books.h"

using namespace std;

void solve(int N, int K, long long A, int S) {
    long long int lst[100100];
    long long int sum = 0;

    for(int i = 1; i <= N; i++){
        lst[i] = -1;
    }

    for(int i = 1; i <= K; i++){
        lst[i] = skim(i);
        sum += lst[i];
    }

    if(sum > A * 2){
        impossible();
    }
    else if(sum >= A){
        vector<int> v;

        for(int i = 1; i <= K; i++){
            v.push_back(i);
        }

        answer(v);
    }
    else{
        vector<int> v;

        int s = 1;
        int e = N + 1;

        while(s != e){
            int m = (s + e) / 2;

            long long int v;

            if(lst[m] != -1) v = lst[m];
            else v = skim(m);
            lst[m] = v;

            if(v >= A){
                e = m;
            }
            else{
                s = m + 1;
            }
        }

        if(s < K){
            impossible();
            return;
        }

        if(s != N + 1){
            long long int tomp;
            if(lst[s] == -1) tomp = skim(s);
            else tomp = lst[s];

            lst[s] = tomp;

            if(sum - lst[K] + tomp <= A * 2){
                for(int i = 1; i <= K - 1; i++){
                    v.push_back(i);
                }
                v.push_back(s);
                answer(v);
                return;
            }
            N = s - 1;
        }

        set<int> sat;

        for(int i = 1; i <= K; i++){
            sat.insert(i);
        }

        for(int i = 0; i < K; i++){
            sat.erase(K - i);
            sat.insert(N - i);

            long long int vo;

            if(lst[N - i] != -1) vo = lst[N - i];
            else vo = skim(N - i);
            lst[N - i] = vo;

            sum -= lst[K - i];
            sum += vo;

            if(A <= sum && sum <= A * 2){
                for(int i : sat){
                    v.push_back(i);
                }
                answer(v);
                return;
            }
        }
        impossible();
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 6 ms 1112 KB Output is correct
4 Correct 1 ms 1112 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1112 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1364 KB Output is correct
8 Correct 1 ms 1364 KB Output is correct
9 Correct 1 ms 1124 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1112 KB Output is correct
12 Correct 1 ms 1112 KB Output is correct
13 Correct 1 ms 1112 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 1 ms 1112 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1364 KB Output is correct
12 Correct 1 ms 1268 KB Output is correct
13 Correct 8 ms 1112 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 1 ms 1112 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 1 ms 1112 KB Output is correct
18 Correct 1 ms 1112 KB Output is correct
19 Correct 1 ms 1112 KB Output is correct
20 Correct 1 ms 1112 KB Output is correct
21 Correct 1 ms 1112 KB Output is correct
22 Correct 1 ms 1112 KB Output is correct
23 Correct 1 ms 1112 KB Output is correct
24 Correct 1 ms 1192 KB Output is correct
25 Correct 1 ms 1368 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1364 KB Output is correct
12 Correct 1 ms 1268 KB Output is correct
13 Correct 8 ms 1112 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 1 ms 1112 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 1 ms 1112 KB Output is correct
18 Correct 1 ms 1112 KB Output is correct
19 Correct 1 ms 1112 KB Output is correct
20 Correct 1 ms 1112 KB Output is correct
21 Correct 1 ms 1112 KB Output is correct
22 Correct 1 ms 1112 KB Output is correct
23 Correct 1 ms 1112 KB Output is correct
24 Correct 1 ms 1192 KB Output is correct
25 Correct 1 ms 1368 KB Output is correct
26 Correct 1 ms 1112 KB Output is correct
27 Correct 1 ms 1112 KB Output is correct
28 Correct 1 ms 1112 KB Output is correct
29 Correct 1 ms 1112 KB Output is correct
30 Correct 1 ms 1364 KB Output is correct
31 Correct 1 ms 1368 KB Output is correct
32 Correct 1 ms 1112 KB Output is correct
33 Correct 1 ms 1368 KB Output is correct
34 Correct 1 ms 1108 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1196 KB Output is correct
37 Correct 1 ms 1368 KB Output is correct
38 Correct 1 ms 1116 KB Output is correct
39 Correct 1 ms 1368 KB Output is correct
40 Correct 1 ms 1112 KB Output is correct
41 Correct 1 ms 1192 KB Output is correct
42 Correct 1 ms 1112 KB Output is correct
43 Correct 1 ms 1112 KB Output is correct
44 Correct 1 ms 1112 KB Output is correct
45 Correct 1 ms 1112 KB Output is correct
46 Correct 1 ms 1368 KB Output is correct
47 Correct 1 ms 1112 KB Output is correct
48 Correct 1 ms 1112 KB Output is correct
49 Correct 1 ms 1112 KB Output is correct
50 Correct 1 ms 1112 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1364 KB Output is correct
12 Correct 1 ms 1268 KB Output is correct
13 Correct 8 ms 1112 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 1 ms 1112 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 1 ms 1112 KB Output is correct
18 Correct 1 ms 1112 KB Output is correct
19 Correct 1 ms 1112 KB Output is correct
20 Correct 1 ms 1112 KB Output is correct
21 Correct 1 ms 1112 KB Output is correct
22 Correct 1 ms 1112 KB Output is correct
23 Correct 1 ms 1112 KB Output is correct
24 Correct 1 ms 1192 KB Output is correct
25 Correct 1 ms 1368 KB Output is correct
26 Correct 1 ms 1112 KB Output is correct
27 Correct 1 ms 1196 KB Output is correct
28 Correct 1 ms 1112 KB Output is correct
29 Correct 1 ms 1112 KB Output is correct
30 Correct 1 ms 1108 KB Output is correct
31 Correct 1 ms 1112 KB Output is correct
32 Correct 1 ms 1368 KB Output is correct
33 Correct 1 ms 1112 KB Output is correct
34 Correct 1 ms 1368 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1368 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 1368 KB Output is correct
39 Correct 1 ms 1112 KB Output is correct
40 Correct 1 ms 1368 KB Output is correct
41 Correct 1 ms 1112 KB Output is correct
42 Correct 1 ms 1112 KB Output is correct
43 Correct 1 ms 1112 KB Output is correct
44 Correct 1 ms 1112 KB Output is correct
45 Correct 1 ms 1112 KB Output is correct
46 Correct 1 ms 1112 KB Output is correct
47 Correct 1 ms 1368 KB Output is correct
48 Correct 1 ms 1112 KB Output is correct
49 Correct 1 ms 1368 KB Output is correct
50 Correct 1 ms 1112 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1112 KB Output is correct
2 Correct 1 ms 1112 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 1 ms 1112 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 1 ms 1112 KB Output is correct
11 Correct 1 ms 1364 KB Output is correct
12 Correct 1 ms 1268 KB Output is correct
13 Correct 8 ms 1112 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 1 ms 1112 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 1 ms 1112 KB Output is correct
18 Correct 1 ms 1112 KB Output is correct
19 Correct 1 ms 1112 KB Output is correct
20 Correct 1 ms 1112 KB Output is correct
21 Correct 1 ms 1112 KB Output is correct
22 Correct 1 ms 1112 KB Output is correct
23 Correct 1 ms 1112 KB Output is correct
24 Correct 1 ms 1192 KB Output is correct
25 Correct 1 ms 1368 KB Output is correct
26 Correct 1 ms 1112 KB Output is correct
27 Correct 1 ms 1112 KB Output is correct
28 Correct 1 ms 1112 KB Output is correct
29 Correct 1 ms 1112 KB Output is correct
30 Correct 1 ms 1364 KB Output is correct
31 Correct 1 ms 1368 KB Output is correct
32 Correct 1 ms 1112 KB Output is correct
33 Correct 1 ms 1368 KB Output is correct
34 Correct 1 ms 1108 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1196 KB Output is correct
37 Correct 1 ms 1368 KB Output is correct
38 Correct 1 ms 1116 KB Output is correct
39 Correct 1 ms 1368 KB Output is correct
40 Correct 1 ms 1112 KB Output is correct
41 Correct 1 ms 1192 KB Output is correct
42 Correct 1 ms 1112 KB Output is correct
43 Correct 1 ms 1112 KB Output is correct
44 Correct 1 ms 1112 KB Output is correct
45 Correct 1 ms 1112 KB Output is correct
46 Correct 1 ms 1368 KB Output is correct
47 Correct 1 ms 1112 KB Output is correct
48 Correct 1 ms 1112 KB Output is correct
49 Correct 1 ms 1112 KB Output is correct
50 Correct 1 ms 1112 KB Output is correct
51 Correct 1 ms 1112 KB Output is correct
52 Correct 1 ms 1196 KB Output is correct
53 Correct 1 ms 1112 KB Output is correct
54 Correct 1 ms 1112 KB Output is correct
55 Correct 1 ms 1108 KB Output is correct
56 Correct 1 ms 1112 KB Output is correct
57 Correct 1 ms 1368 KB Output is correct
58 Correct 1 ms 1112 KB Output is correct
59 Correct 1 ms 1368 KB Output is correct
60 Correct 1 ms 1112 KB Output is correct
61 Correct 1 ms 1368 KB Output is correct
62 Correct 1 ms 1112 KB Output is correct
63 Correct 1 ms 1368 KB Output is correct
64 Correct 1 ms 1112 KB Output is correct
65 Correct 1 ms 1368 KB Output is correct
66 Correct 1 ms 1112 KB Output is correct
67 Correct 1 ms 1112 KB Output is correct
68 Correct 1 ms 1112 KB Output is correct
69 Correct 1 ms 1112 KB Output is correct
70 Correct 1 ms 1112 KB Output is correct
71 Correct 1 ms 1112 KB Output is correct
72 Correct 1 ms 1368 KB Output is correct
73 Correct 1 ms 1112 KB Output is correct
74 Correct 1 ms 1368 KB Output is correct
75 Correct 1 ms 1112 KB Output is correct
76 Correct 1 ms 1112 KB Output is correct
77 Correct 1 ms 1112 KB Output is correct
78 Correct 1 ms 1112 KB Output is correct
79 Correct 1 ms 1112 KB Output is correct
80 Correct 1 ms 1112 KB Output is correct
81 Correct 1 ms 1112 KB Output is correct
82 Correct 1 ms 1112 KB Output is correct
83 Correct 1 ms 1112 KB Output is correct
84 Correct 1 ms 1112 KB Output is correct
85 Correct 1 ms 1112 KB Output is correct
86 Correct 1 ms 1112 KB Output is correct
87 Correct 1 ms 1112 KB Output is correct
88 Correct 1 ms 1112 KB Output is correct
89 Correct 1 ms 1112 KB Output is correct
90 Correct 1 ms 1112 KB Output is correct
91 Correct 1 ms 1112 KB Output is correct
92 Correct 1 ms 1112 KB Output is correct
93 Correct 1 ms 1112 KB Output is correct
94 Correct 1 ms 1112 KB Output is correct
95 Correct 1 ms 1112 KB Output is correct
96 Correct 1 ms 1112 KB Output is correct
97 Correct 1 ms 1112 KB Output is correct
98 Correct 1 ms 1112 KB Output is correct
99 Correct 1 ms 1112 KB Output is correct
100 Correct 1 ms 1112 KB Output is correct
101 Correct 1 ms 1112 KB Output is correct
102 Correct 1 ms 1112 KB Output is correct
103 Correct 1 ms 1112 KB Output is correct
104 Correct 1 ms 1112 KB Output is correct
105 Correct 1 ms 1112 KB Output is correct
106 Correct 1 ms 1112 KB Output is correct
107 Correct 1 ms 1112 KB Output is correct
108 Correct 1 ms 1112 KB Output is correct
109 Correct 1 ms 1112 KB Output is correct
110 Correct 1 ms 1112 KB Output is correct
111 Correct 1 ms 1112 KB Output is correct
112 Correct 1 ms 1112 KB Output is correct
113 Correct 1 ms 1112 KB Output is correct
114 Correct 1 ms 1196 KB Output is correct
115 Correct 1 ms 1120 KB Output is correct
116 Correct 1 ms 1368 KB Output is correct
117 Correct 1 ms 1112 KB Output is correct
118 Correct 1 ms 1112 KB Output is correct
119 Correct 1 ms 1112 KB Output is correct
120 Correct 1 ms 1112 KB Output is correct
121 Correct 1 ms 1200 KB Output is correct
122 Correct 1 ms 1112 KB Output is correct
123 Correct 1 ms 1368 KB Output is correct
124 Correct 1 ms 1112 KB Output is correct
125 Correct 1 ms 1192 KB Output is correct
126 Correct 1 ms 1112 KB Output is correct
127 Correct 1 ms 1112 KB Output is correct
128 Correct 1 ms 1368 KB Output is correct
129 Correct 1 ms 1112 KB Output is correct
130 Correct 1 ms 1364 KB Output is correct
131 Correct 1 ms 1364 KB Output is correct
132 Correct 1 ms 1112 KB Output is correct
133 Correct 1 ms 1112 KB Output is correct
134 Correct 1 ms 1112 KB Output is correct
135 Correct 1 ms 1112 KB Output is correct