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Submission #953817

# Submission time Handle Problem Language Result Execution time Memory
953817 2024-03-26T17:35:21 Z asdasdqwer A Difficult(y) Choice (BOI21_books) C++14
100 / 100
 1 ms 1368 KB 
#include <bits/stdc++.h>

#include "books.h"

using namespace std;

//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
//     books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
//     g++ books_sample.cpp sample_grader.cpp
// in this folder.
//

vector<long long> vals;

long long query(int i) {
    if (vals[i] == -1) {
        vals[i] = skim(i+1);
    }

    return vals[i];
}

void solve(int N, int K, long long A, int S) {
    vals.assign(N, -1);

    int l = 0, r = N - K;
    int cand = -1;

    while (l <= r) {
        int m;
        if (r-l >= 100) {
            m = l + (r-l)/4;
        }

        else {
            m = l + (r-l)/2;
        }

        long long tmpSum = 0;
        for (int i=K-1;i>=0;i--) {
            if (tmpSum + (i+1)*query(m+i) < A) {
                tmpSum = -10;
                break;
            }

            tmpSum += query(i+m);

            if (tmpSum + i > 2LL*A) {
                tmpSum = 2LL*A + 1LL;
                break;
            }
        }

        if (A <= tmpSum && tmpSum <= 2LL*A) {
            vector<int> idx;
            for (int i=0;i<K;i++)idx.push_back(i+m+1);
            answer(idx);
            return;
        }

        else if (tmpSum < A) {
            l = m+1;
        }

        else {
            r = m-1;
            cand = m;
        }
    }

    long long possum = query(cand + K - 1);
    for (int i=0;i<K-1;i++) {
        possum += query(i);
    }

    if (A <= possum && possum <= 2*A) {
        vector<int> idx;
        for (int i=0;i<K-1;i++) idx.push_back(i+1);
        idx.push_back(cand+K);
        answer(idx);
        return;
    }

    impossible();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 0 ms 600 KB Output is correct
16 Correct 0 ms 600 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 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 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 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 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 1108 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 1112 KB Output is correct
25 Correct 1 ms 1112 KB Output is correct

Subtask #5
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 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 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 1108 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 1112 KB Output is correct
25 Correct 1 ms 1112 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 1112 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 1112 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1112 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 1112 KB Output is correct
39 Correct 1 ms 1112 KB Output is correct
40 Correct 1 ms 1112 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 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 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 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 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 1108 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 1112 KB Output is correct
25 Correct 1 ms 1112 KB Output is correct
26 Correct 1 ms 1108 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 1112 KB Output is correct
31 Correct 1 ms 1108 KB Output is correct
32 Correct 1 ms 1112 KB Output is correct
33 Correct 1 ms 1112 KB Output is correct
34 Correct 1 ms 1112 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1112 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 1112 KB Output is correct
39 Correct 1 ms 1112 KB Output is correct
40 Correct 1 ms 1112 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 1112 KB Output is correct
48 Correct 1 ms 1112 KB Output is correct
49 Correct 1 ms 1196 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 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 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 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 1108 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 1112 KB Output is correct
25 Correct 1 ms 1112 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 1112 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 1112 KB Output is correct
35 Correct 1 ms 1112 KB Output is correct
36 Correct 1 ms 1112 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 1112 KB Output is correct
39 Correct 1 ms 1112 KB Output is correct
40 Correct 1 ms 1112 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 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 1108 KB Output is correct
52 Correct 1 ms 1112 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 1112 KB Output is correct
56 Correct 1 ms 1108 KB Output is correct
57 Correct 1 ms 1112 KB Output is correct
58 Correct 1 ms 1112 KB Output is correct
59 Correct 1 ms 1112 KB Output is correct
60 Correct 1 ms 1112 KB Output is correct
61 Correct 1 ms 1112 KB Output is correct
62 Correct 1 ms 1112 KB Output is correct
63 Correct 1 ms 1112 KB Output is correct
64 Correct 1 ms 1112 KB Output is correct
65 Correct 1 ms 1112 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 1112 KB Output is correct
73 Correct 1 ms 1112 KB Output is correct
74 Correct 1 ms 1196 KB Output is correct
75 Correct 1 ms 1112 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 1 ms 600 KB Output is correct
85 Correct 0 ms 600 KB Output is correct
86 Correct 0 ms 600 KB Output is correct
87 Correct 1 ms 600 KB Output is correct
88 Correct 1 ms 600 KB Output is correct
89 Correct 1 ms 432 KB Output is correct
90 Correct 0 ms 600 KB Output is correct
91 Correct 0 ms 432 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 1192 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 1368 KB Output is correct
98 Correct 1 ms 1192 KB Output is correct
99 Correct 1 ms 1112 KB Output is correct
100 Correct 1 ms 1108 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 1196 KB Output is correct
109 Correct 1 ms 1368 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 1172 KB Output is correct
113 Correct 1 ms 1368 KB Output is correct
114 Correct 1 ms 1368 KB Output is correct
115 Correct 1 ms 1112 KB Output is correct
116 Correct 1 ms 1112 KB Output is correct
117 Correct 1 ms 1112 KB Output is correct
118 Correct 1 ms 1200 KB Output is correct
119 Correct 1 ms 1368 KB Output is correct
120 Correct 1 ms 1112 KB Output is correct
121 Correct 1 ms 1112 KB Output is correct
122 Correct 1 ms 1196 KB Output is correct
123 Correct 1 ms 1112 KB Output is correct
124 Correct 1 ms 1368 KB Output is correct
125 Correct 1 ms 1112 KB Output is correct
126 Correct 1 ms 1200 KB Output is correct
127 Correct 1 ms 1112 KB Output is correct
128 Correct 1 ms 1112 KB Output is correct
129 Correct 1 ms 1196 KB Output is correct
130 Correct 1 ms 1112 KB Output is correct
131 Correct 1 ms 1112 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 1200 KB Output is correct
135 Correct 1 ms 1112 KB Output is correct