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Submission #646343

# Submission time Handle Problem Language Result Execution time Memory
646343 2022-09-29T15:21:59 Z dooompy A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 1 ms 328 KB 
#include "bits/stdc++.h"
#include "books.h"
 
using namespace std;
 
using ll = long long;
 
map<int, ll> skimmed;
 
void solve(int n, int k, ll A, int s) {
    ll total = 0;
    vector<int> answ;
    for (int i = 1; i <= k; i++) {
        ll ans = skim(i);
        skimmed[i] = ans;
        total += ans;
        answ.push_back(i);
    }
 
    if (total >= A && total <= 2*A) {
        answer(answ);
    }
 
    if (total > 2*A) impossible();
 
    int l = 1, r = n;
    while (l <= r) {
        int mid = (l + r) / 2;
        if (skimmed[mid] == 0) {
            skimmed[mid] = skim(mid);
        }
        if (skimmed[mid] < A) {
            l = mid + 1;
        } else {
            r = mid - 1;
        }
    }
 
    if (l <= n && l > k) {
        total = 0;
        for (int i = 1; i < k; i++) {
            total += skimmed[i];
        }
        if (skimmed[l] == 0) skimmed[l] = skim(l);
        total += skimmed[l];
 
        answ.clear();
        if (total >= A and total <= 2 * A) {
            for (int i = 1; i < k; i++) {
                answ.push_back(i);
            }
            answ.push_back(l);
            answer(answ);
        }
    }
    l--;
    for (int i = l; i >= l-k+1; i--) {
        if (skimmed[i] == 0) {
            skimmed[i] = skim(i);
        }
    }
    if (l > k) {
        for (int start = 0; start < k; start++) {
            total = 0;
            answ.clear();
            for (int i = 1; i <= start; i++) {
                total += skimmed[i];
                answ.push_back(i);
            }
            for (int j = l; j >= l - k + start + 1; j--) {
                total += skimmed[j];
                answ.push_back(j);
            }
 
            if (total >=A and total <= 2*A) {
                answer(answ);
            }
        }
    }
    impossible();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 208 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 208 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
33 Correct 1 ms 300 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct
37 Correct 0 ms 208 KB Output is correct
38 Correct 1 ms 208 KB Output is correct
39 Correct 1 ms 208 KB Output is correct
40 Correct 1 ms 208 KB Output is correct
41 Correct 1 ms 208 KB Output is correct
42 Correct 1 ms 208 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 328 KB Output is correct
45 Correct 0 ms 208 KB Output is correct
46 Correct 0 ms 208 KB Output is correct
47 Correct 1 ms 296 KB Output is correct
48 Correct 0 ms 208 KB Output is correct
49 Correct 1 ms 208 KB Output is correct
50 Correct 1 ms 304 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 208 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 220 KB Output is correct
37 Correct 1 ms 208 KB Output is correct
38 Correct 1 ms 208 KB Output is correct
39 Correct 1 ms 208 KB Output is correct
40 Correct 1 ms 208 KB Output is correct
41 Correct 1 ms 208 KB Output is correct
42 Correct 1 ms 208 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 208 KB Output is correct
45 Correct 1 ms 208 KB Output is correct
46 Correct 1 ms 208 KB Output is correct
47 Correct 1 ms 304 KB Output is correct
48 Correct 1 ms 208 KB Output is correct
49 Correct 1 ms 208 KB Output is correct
50 Correct 1 ms 208 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 208 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
33 Correct 1 ms 300 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct
37 Correct 0 ms 208 KB Output is correct
38 Correct 1 ms 208 KB Output is correct
39 Correct 1 ms 208 KB Output is correct
40 Correct 1 ms 208 KB Output is correct
41 Correct 1 ms 208 KB Output is correct
42 Correct 1 ms 208 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 328 KB Output is correct
45 Correct 0 ms 208 KB Output is correct
46 Correct 0 ms 208 KB Output is correct
47 Correct 1 ms 296 KB Output is correct
48 Correct 0 ms 208 KB Output is correct
49 Correct 1 ms 208 KB Output is correct
50 Correct 1 ms 304 KB Output is correct
51 Correct 1 ms 208 KB Output is correct
52 Correct 1 ms 208 KB Output is correct
53 Correct 1 ms 208 KB Output is correct
54 Correct 1 ms 208 KB Output is correct
55 Correct 1 ms 208 KB Output is correct
56 Correct 0 ms 208 KB Output is correct
57 Correct 0 ms 208 KB Output is correct
58 Correct 1 ms 208 KB Output is correct
59 Correct 1 ms 208 KB Output is correct
60 Correct 1 ms 208 KB Output is correct
61 Correct 1 ms 220 KB Output is correct
62 Correct 1 ms 208 KB Output is correct
63 Correct 1 ms 208 KB Output is correct
64 Correct 1 ms 208 KB Output is correct
65 Correct 1 ms 208 KB Output is correct
66 Correct 1 ms 208 KB Output is correct
67 Correct 1 ms 208 KB Output is correct
68 Correct 1 ms 208 KB Output is correct
69 Correct 1 ms 208 KB Output is correct
70 Correct 1 ms 208 KB Output is correct
71 Correct 1 ms 208 KB Output is correct
72 Correct 1 ms 304 KB Output is correct
73 Correct 1 ms 208 KB Output is correct
74 Correct 1 ms 208 KB Output is correct
75 Correct 1 ms 208 KB Output is correct
76 Correct 0 ms 208 KB Output is correct
77 Correct 1 ms 208 KB Output is correct
78 Correct 1 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 0 ms 208 KB Output is correct
81 Correct 0 ms 208 KB Output is correct
82 Correct 1 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 1 ms 208 KB Output is correct
85 Correct 1 ms 208 KB Output is correct
86 Correct 1 ms 304 KB Output is correct
87 Correct 1 ms 208 KB Output is correct
88 Correct 1 ms 208 KB Output is correct
89 Correct 1 ms 208 KB Output is correct
90 Correct 1 ms 208 KB Output is correct
91 Correct 1 ms 208 KB Output is correct
92 Correct 1 ms 208 KB Output is correct
93 Correct 1 ms 208 KB Output is correct
94 Correct 1 ms 208 KB Output is correct
95 Correct 1 ms 208 KB Output is correct
96 Correct 0 ms 208 KB Output is correct
97 Correct 1 ms 208 KB Output is correct
98 Correct 0 ms 208 KB Output is correct
99 Correct 1 ms 208 KB Output is correct
100 Correct 1 ms 208 KB Output is correct
101 Correct 1 ms 208 KB Output is correct
102 Correct 1 ms 208 KB Output is correct
103 Correct 1 ms 208 KB Output is correct
104 Correct 1 ms 208 KB Output is correct
105 Correct 1 ms 208 KB Output is correct
106 Correct 1 ms 208 KB Output is correct
107 Correct 1 ms 208 KB Output is correct
108 Correct 1 ms 208 KB Output is correct
109 Correct 1 ms 208 KB Output is correct
110 Correct 1 ms 300 KB Output is correct
111 Correct 1 ms 208 KB Output is correct
112 Correct 1 ms 208 KB Output is correct
113 Correct 1 ms 280 KB Output is correct
114 Correct 1 ms 208 KB Output is correct
115 Correct 1 ms 208 KB Output is correct
116 Correct 1 ms 208 KB Output is correct
117 Correct 1 ms 208 KB Output is correct
118 Correct 1 ms 208 KB Output is correct
119 Correct 1 ms 208 KB Output is correct
120 Correct 1 ms 208 KB Output is correct
121 Correct 1 ms 208 KB Output is correct
122 Correct 1 ms 208 KB Output is correct
123 Correct 1 ms 208 KB Output is correct
124 Correct 0 ms 208 KB Output is correct
125 Correct 1 ms 208 KB Output is correct
126 Correct 1 ms 208 KB Output is correct
127 Correct 1 ms 208 KB Output is correct
128 Correct 1 ms 208 KB Output is correct
129 Correct 1 ms 208 KB Output is correct
130 Correct 1 ms 304 KB Output is correct
131 Correct 1 ms 304 KB Output is correct
132 Correct 1 ms 208 KB Output is correct
133 Correct 1 ms 208 KB Output is correct
134 Correct 1 ms 208 KB Output is correct
135 Correct 1 ms 300 KB Output is correct