oj.uz

Submission #730511

# Submission time Handle Problem Language Result Execution time Memory
730511 2023-04-26T04:21:19 Z nguyentunglam A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 2 ms 432 KB 
#include <bits/stdc++.h>

#include "books.h"

using namespace std;
const int N = 1e5 + 10;
long long a[N];
//
// --- 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.
//
long long Skim(int i) {
    if (a[i]) return a[i];
    return a[i] = skim(i);
}

void solve(int n, int k, long long A, int s) {
//    // TODO implement this function
    int l = 1, r = n;
    long long v = 0;
    int p = n + 1;
    while (l <= r) {
        int mid = l + r >> 1;
        long long tmp = Skim(mid);
        if (tmp >= A) {
            v = tmp; p = mid;
            r = mid - 1;
        }
        else l = mid + 1;
    }


    for(int i = 1; i <= k - 1; i++) v += Skim(i);

    vector<int> ret;
    if (p <= n && k - 1 < p && v <= A * 2) {
        for(int i = 1; i <= k - 1; i++) ret.push_back(i);
        ret.push_back(p);
        answer(ret);
    }

    long long cur = 0;
    for(int i = k; i >= 1; i--) {
        ret.push_back(i);
        cur += Skim(i);
        if (cur > A * 2) {
            impossible();
            return;
        }
    }
    if (cur >= A) answer(ret);
    else {
        --p;
        vector<int> add;
        if (p < 0 || p > n) return;
        while (p > k && !ret.empty()) {
            cur = cur - Skim(ret.back()) + Skim(p);
            ret.pop_back();
            add.push_back(p);
            p--;
            if (cur >= A) {
                for(int &j : add) ret.push_back(j);
                answer(ret);
                return;
            }
        }
        impossible();
    }
}

Compilation message

books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:28:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   28 |         int mid = l + r >> 1;
      |                   ~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 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 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 1 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 308 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 308 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 320 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 304 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 284 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 308 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 304 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 312 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 308 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 284 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 308 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 304 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 312 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 288 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 300 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 296 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 1 ms 312 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 304 KB Output is correct
37 Correct 1 ms 316 KB Output is correct
38 Correct 1 ms 312 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 316 KB Output is correct
42 Correct 1 ms 304 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 300 KB Output is correct
45 Correct 1 ms 304 KB Output is correct
46 Correct 1 ms 304 KB Output is correct
47 Correct 1 ms 308 KB Output is correct
48 Correct 1 ms 308 KB Output is correct
49 Correct 1 ms 312 KB Output is correct
50 Correct 1 ms 300 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 284 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 308 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 304 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 312 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 308 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 336 KB Output is correct
29 Correct 1 ms 308 KB Output is correct
30 Correct 1 ms 312 KB Output is correct
31 Correct 1 ms 300 KB Output is correct
32 Correct 1 ms 308 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 1 ms 288 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 1 ms 304 KB Output is correct
38 Correct 1 ms 300 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 292 KB Output is correct
41 Correct 1 ms 312 KB Output is correct
42 Correct 1 ms 304 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 1 ms 328 KB Output is correct
45 Correct 1 ms 300 KB Output is correct
46 Correct 1 ms 316 KB Output is correct
47 Correct 1 ms 312 KB Output is correct
48 Correct 2 ms 320 KB Output is correct
49 Correct 1 ms 308 KB Output is correct
50 Correct 1 ms 304 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 284 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 308 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 304 KB Output is correct
19 Correct 1 ms 208 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 312 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 288 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 300 KB Output is correct
30 Correct 1 ms 316 KB Output is correct
31 Correct 1 ms 296 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 1 ms 312 KB Output is correct
34 Correct 1 ms 300 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 304 KB Output is correct
37 Correct 1 ms 316 KB Output is correct
38 Correct 1 ms 312 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 316 KB Output is correct
42 Correct 1 ms 304 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 300 KB Output is correct
45 Correct 1 ms 304 KB Output is correct
46 Correct 1 ms 304 KB Output is correct
47 Correct 1 ms 308 KB Output is correct
48 Correct 1 ms 308 KB Output is correct
49 Correct 1 ms 312 KB Output is correct
50 Correct 1 ms 300 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 336 KB Output is correct
54 Correct 1 ms 308 KB Output is correct
55 Correct 1 ms 312 KB Output is correct
56 Correct 1 ms 300 KB Output is correct
57 Correct 1 ms 308 KB Output is correct
58 Correct 1 ms 316 KB Output is correct
59 Correct 1 ms 288 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 300 KB Output is correct
62 Correct 1 ms 304 KB Output is correct
63 Correct 1 ms 300 KB Output is correct
64 Correct 1 ms 336 KB Output is correct
65 Correct 1 ms 292 KB Output is correct
66 Correct 1 ms 312 KB Output is correct
67 Correct 1 ms 304 KB Output is correct
68 Correct 1 ms 336 KB Output is correct
69 Correct 1 ms 328 KB Output is correct
70 Correct 1 ms 300 KB Output is correct
71 Correct 1 ms 316 KB Output is correct
72 Correct 1 ms 312 KB Output is correct
73 Correct 2 ms 320 KB Output is correct
74 Correct 1 ms 308 KB Output is correct
75 Correct 1 ms 304 KB Output is correct
76 Correct 1 ms 208 KB Output is correct
77 Correct 0 ms 208 KB Output is correct
78 Correct 1 ms 304 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 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 296 KB Output is correct
85 Correct 1 ms 312 KB Output is correct
86 Correct 1 ms 316 KB Output is correct
87 Correct 1 ms 336 KB Output is correct
88 Correct 1 ms 208 KB Output is correct
89 Correct 1 ms 312 KB Output is correct
90 Correct 1 ms 208 KB Output is correct
91 Correct 1 ms 312 KB Output is correct
92 Correct 1 ms 292 KB Output is correct
93 Correct 1 ms 304 KB Output is correct
94 Correct 1 ms 304 KB Output is correct
95 Correct 1 ms 304 KB Output is correct
96 Correct 1 ms 304 KB Output is correct
97 Correct 1 ms 304 KB Output is correct
98 Correct 1 ms 208 KB Output is correct
99 Correct 1 ms 300 KB Output is correct
100 Correct 1 ms 300 KB Output is correct
101 Correct 1 ms 304 KB Output is correct
102 Correct 1 ms 208 KB Output is correct
103 Correct 1 ms 304 KB Output is correct
104 Correct 1 ms 304 KB Output is correct
105 Correct 1 ms 300 KB Output is correct
106 Correct 1 ms 304 KB Output is correct
107 Correct 1 ms 308 KB Output is correct
108 Correct 1 ms 208 KB Output is correct
109 Correct 1 ms 292 KB Output is correct
110 Correct 1 ms 304 KB Output is correct
111 Correct 1 ms 308 KB Output is correct
112 Correct 1 ms 288 KB Output is correct
113 Correct 1 ms 208 KB Output is correct
114 Correct 1 ms 304 KB Output is correct
115 Correct 1 ms 208 KB Output is correct
116 Correct 1 ms 300 KB Output is correct
117 Correct 0 ms 208 KB Output is correct
118 Correct 1 ms 296 KB Output is correct
119 Correct 1 ms 304 KB Output is correct
120 Correct 1 ms 304 KB Output is correct
121 Correct 1 ms 304 KB Output is correct
122 Correct 1 ms 304 KB Output is correct
123 Correct 1 ms 300 KB Output is correct
124 Correct 1 ms 336 KB Output is correct
125 Correct 1 ms 308 KB Output is correct
126 Correct 1 ms 304 KB Output is correct
127 Correct 1 ms 304 KB Output is correct
128 Correct 1 ms 292 KB Output is correct
129 Correct 1 ms 208 KB Output is correct
130 Correct 1 ms 300 KB Output is correct
131 Correct 1 ms 300 KB Output is correct
132 Correct 1 ms 296 KB Output is correct
133 Correct 1 ms 304 KB Output is correct
134 Correct 0 ms 432 KB Output is correct
135 Correct 1 ms 296 KB Output is correct