oj.uz

Submission #769432

# Submission time Handle Problem Language Result Execution time Memory
769432 2023-06-29T14:32:57 Z raysh07 A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 37 ms 1180 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.
//

void solve(int n, int k, long long a, int useless) {
    // // TODO implement this function
    // if (skim(2) == 42) {
    //     impossible();
    // } else {
    //     answer({1, 3});
    // }
    
    vector <long long> b(n + 1, -1);
    long long sum = 0;
    for (int i = 1; i < k; i++) b[i] = skim(i), sum += b[i];
    
    int l = k, r = n + 1;
    while (l != r){
        int mid = (l + r)/2;
        
        long long x = skim(mid);
        if (sum + x >= a) r = mid;
        else l = mid + 1;
    }
    
    if (l <= n && sum + skim(l) <= 2 * a){
        vector <int> ans;
        for (int i = 1; i < k; i++) ans.push_back(i);
        ans.push_back(l);
        answer(ans);
        return;
    }
    
    l--;
    set <pair<long long, int>> st;
    for (int i = 1; i < k; i++) st.insert({b[i], i});
    
    for (int i = l; i > l - k; i--){
        if (i <= 0) continue;
        
        b[i] = skim(i);
        st.insert({b[i], i});
    }
    
    vector <pair<long long, int>> ok;
    for (auto x : st) ok.push_back(x);
    
    int sz = ok.size();
    for (int i = 0; i < (1 << sz); i++){
        int cnt = 0;
        long long sum1 = 0;
        
        for (int j = 0; j < sz; j++){
            if (i >> j & 1){
                cnt++;
                sum1 += ok[j].first;
            }
        }
        
        if (cnt != k) continue;
        
        if (sum1 >= a && sum1 <= 2 * a) {
            vector <int> ans;
            for (int j = 0; j < sz; j++){
                if (i >> j & 1) ans.push_back(ok[j].second);
            }
            
            answer(ans);
            return;
        }
    }
    
    impossible();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 284 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 464 KB Output is correct
11 Correct 2 ms 464 KB Output is correct
12 Correct 37 ms 512 KB Output is correct
13 Correct 1 ms 464 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 0 ms 464 KB Output is correct
16 Correct 31 ms 464 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1060 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1060 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 33 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1060 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1060 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 33 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 2 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 1060 KB Output is correct
16 Correct 1 ms 1060 KB Output is correct
17 Correct 32 ms 976 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 1056 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 976 KB Output is correct
24 Correct 1 ms 1056 KB Output is correct
25 Correct 1 ms 976 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1060 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1060 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 33 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 2 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 1060 KB Output is correct
16 Correct 1 ms 1060 KB Output is correct
17 Correct 32 ms 976 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 1056 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 976 KB Output is correct
24 Correct 1 ms 1056 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 1056 KB Output is correct
28 Correct 1 ms 976 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 1056 KB Output is correct
31 Correct 1 ms 976 KB Output is correct
32 Correct 1 ms 1056 KB Output is correct
33 Correct 32 ms 1100 KB Output is correct
34 Correct 1 ms 976 KB Output is correct
35 Correct 1 ms 1056 KB Output is correct
36 Correct 1 ms 1064 KB Output is correct
37 Correct 1 ms 1052 KB Output is correct
38 Correct 1 ms 1044 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 1064 KB Output is correct
41 Correct 1 ms 1056 KB Output is correct
42 Correct 1 ms 1036 KB Output is correct
43 Correct 1 ms 968 KB Output is correct
44 Correct 1 ms 1040 KB Output is correct
45 Correct 1 ms 1056 KB Output is correct
46 Correct 1 ms 1060 KB Output is correct
47 Correct 3 ms 1072 KB Output is correct
48 Correct 1 ms 1048 KB Output is correct
49 Correct 1 ms 1060 KB Output is correct
50 Correct 31 ms 1060 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1060 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1060 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 33 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 2 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 1060 KB Output is correct
16 Correct 1 ms 1060 KB Output is correct
17 Correct 32 ms 976 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 1056 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 976 KB Output is correct
24 Correct 1 ms 1056 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 1060 KB Output is correct
28 Correct 1 ms 1048 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 976 KB Output is correct
31 Correct 1 ms 1040 KB Output is correct
32 Correct 1 ms 1048 KB Output is correct
33 Correct 31 ms 1048 KB Output is correct
34 Correct 1 ms 976 KB Output is correct
35 Correct 1 ms 1056 KB Output is correct
36 Correct 1 ms 1056 KB Output is correct
37 Correct 1 ms 1056 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 1048 KB Output is correct
40 Correct 1 ms 1060 KB Output is correct
41 Correct 1 ms 1056 KB Output is correct
42 Correct 1 ms 968 KB Output is correct
43 Correct 1 ms 976 KB Output is correct
44 Correct 1 ms 976 KB Output is correct
45 Correct 1 ms 976 KB Output is correct
46 Correct 1 ms 1056 KB Output is correct
47 Correct 31 ms 976 KB Output is correct
48 Correct 1 ms 1060 KB Output is correct
49 Correct 1 ms 1060 KB Output is correct
50 Correct 2 ms 976 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1060 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 1056 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 1060 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 1060 KB Output is correct
8 Correct 33 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 2 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 1060 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 1060 KB Output is correct
16 Correct 1 ms 1060 KB Output is correct
17 Correct 32 ms 976 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 1056 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 976 KB Output is correct
24 Correct 1 ms 1056 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 1056 KB Output is correct
28 Correct 1 ms 976 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 1056 KB Output is correct
31 Correct 1 ms 976 KB Output is correct
32 Correct 1 ms 1056 KB Output is correct
33 Correct 32 ms 1100 KB Output is correct
34 Correct 1 ms 976 KB Output is correct
35 Correct 1 ms 1056 KB Output is correct
36 Correct 1 ms 1064 KB Output is correct
37 Correct 1 ms 1052 KB Output is correct
38 Correct 1 ms 1044 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 1064 KB Output is correct
41 Correct 1 ms 1056 KB Output is correct
42 Correct 1 ms 1036 KB Output is correct
43 Correct 1 ms 968 KB Output is correct
44 Correct 1 ms 1040 KB Output is correct
45 Correct 1 ms 1056 KB Output is correct
46 Correct 1 ms 1060 KB Output is correct
47 Correct 3 ms 1072 KB Output is correct
48 Correct 1 ms 1048 KB Output is correct
49 Correct 1 ms 1060 KB Output is correct
50 Correct 31 ms 1060 KB Output is correct
51 Correct 1 ms 976 KB Output is correct
52 Correct 1 ms 1060 KB Output is correct
53 Correct 1 ms 1048 KB Output is correct
54 Correct 1 ms 976 KB Output is correct
55 Correct 1 ms 976 KB Output is correct
56 Correct 1 ms 1040 KB Output is correct
57 Correct 1 ms 1048 KB Output is correct
58 Correct 31 ms 1048 KB Output is correct
59 Correct 1 ms 976 KB Output is correct
60 Correct 1 ms 1056 KB Output is correct
61 Correct 1 ms 1056 KB Output is correct
62 Correct 1 ms 1056 KB Output is correct
63 Correct 1 ms 976 KB Output is correct
64 Correct 1 ms 1048 KB Output is correct
65 Correct 1 ms 1060 KB Output is correct
66 Correct 1 ms 1056 KB Output is correct
67 Correct 1 ms 968 KB Output is correct
68 Correct 1 ms 976 KB Output is correct
69 Correct 1 ms 976 KB Output is correct
70 Correct 1 ms 976 KB Output is correct
71 Correct 1 ms 1056 KB Output is correct
72 Correct 31 ms 976 KB Output is correct
73 Correct 1 ms 1060 KB Output is correct
74 Correct 1 ms 1060 KB Output is correct
75 Correct 2 ms 976 KB Output is correct
76 Correct 1 ms 208 KB Output is correct
77 Correct 0 ms 208 KB Output is correct
78 Correct 0 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 1 ms 208 KB Output is correct
81 Correct 1 ms 288 KB Output is correct
82 Correct 0 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 1 ms 416 KB Output is correct
85 Correct 1 ms 464 KB Output is correct
86 Correct 2 ms 512 KB Output is correct
87 Correct 31 ms 504 KB Output is correct
88 Correct 1 ms 464 KB Output is correct
89 Correct 1 ms 464 KB Output is correct
90 Correct 1 ms 464 KB Output is correct
91 Correct 31 ms 464 KB Output is correct
92 Correct 2 ms 1056 KB Output is correct
93 Correct 1 ms 976 KB Output is correct
94 Correct 1 ms 1056 KB Output is correct
95 Correct 1 ms 976 KB Output is correct
96 Correct 1 ms 976 KB Output is correct
97 Correct 1 ms 976 KB Output is correct
98 Correct 1 ms 976 KB Output is correct
99 Correct 31 ms 1104 KB Output is correct
100 Correct 1 ms 976 KB Output is correct
101 Correct 1 ms 1052 KB Output is correct
102 Correct 1 ms 1064 KB Output is correct
103 Correct 1 ms 976 KB Output is correct
104 Correct 1 ms 976 KB Output is correct
105 Correct 1 ms 976 KB Output is correct
106 Correct 1 ms 1060 KB Output is correct
107 Correct 1 ms 976 KB Output is correct
108 Correct 1 ms 1060 KB Output is correct
109 Correct 1 ms 976 KB Output is correct
110 Correct 1 ms 976 KB Output is correct
111 Correct 1 ms 976 KB Output is correct
112 Correct 1 ms 976 KB Output is correct
113 Correct 3 ms 976 KB Output is correct
114 Correct 1 ms 976 KB Output is correct
115 Correct 1 ms 976 KB Output is correct
116 Correct 32 ms 1076 KB Output is correct
117 Correct 1 ms 1056 KB Output is correct
118 Correct 1 ms 976 KB Output is correct
119 Correct 1 ms 976 KB Output is correct
120 Correct 1 ms 1060 KB Output is correct
121 Correct 1 ms 976 KB Output is correct
122 Correct 31 ms 976 KB Output is correct
123 Correct 1 ms 1060 KB Output is correct
124 Correct 1 ms 976 KB Output is correct
125 Correct 1 ms 1056 KB Output is correct
126 Correct 1 ms 976 KB Output is correct
127 Correct 1 ms 1064 KB Output is correct
128 Correct 1 ms 976 KB Output is correct
129 Correct 1 ms 1040 KB Output is correct
130 Correct 3 ms 1080 KB Output is correct
131 Correct 37 ms 1104 KB Output is correct
132 Correct 1 ms 976 KB Output is correct
133 Correct 1 ms 976 KB Output is correct
134 Correct 1 ms 976 KB Output is correct
135 Correct 31 ms 1180 KB Output is correct