oj.uz

Submission #646320

# Submission time Handle Problem Language Result Execution time Memory
646320 2022-09-29T14:08:31 Z alextodoran A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 2 ms 1064 KB 
/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll skim (int i);
void answer (vector <int> v);
void impossible ();

void solve (int N, int K, ll A, int S) {
    ll D[N + 1];
    int l = 1, r = N + 1;
    while (l < r) {
        int mid = (l + r) / 2;
        D[mid] = skim(mid);
        if (D[mid] > A) {
            r = mid;
        } else {
            l = mid + 1;
        }
    }
    for (int i = 1; i <= min(l - 1, K); i++) {
        D[i] = skim(i);
    }
    for (int i = max(1, l - K); i <= min(N, l); i++) {
        D[i] = skim(i);
    }
    if (l < K) {
        impossible();
        return;
    }
    if (l <= N) {
        ll sum = D[l];
        for (int i = 1; i <= K - 1; i++) {
            sum += D[i];
        }
        if (sum <= A * 2) {
            vector <int> v(K);
            iota(v.begin(), v.end() - 1, 1);
            v.back() = l;
            answer(v);
            return;
        }
    }
    if (l - 1 < K) {
        impossible();
        return;
    }
    ll sum = 0;
    for (int i = 1; i <= K; i++) {
        sum += D[i];
    }
    vector <int> L(K), R;
    iota(L.begin(), L.end(), 1);
    for (int i = K; i >= 1 && sum < A; i--) {
        sum -= D[L.back()];
        L.pop_back();
        R.push_back(l - 1 + i - K);
        sum += D[R.back()];
    }
    if (sum < A || 2 * A < sum) {
        impossible();
        return;
    }
    vector <int> v = L;
    reverse(R.begin(), R.end());
    for (int i : R) {
        v.push_back(i);
    }
    answer(v);
}

Subtask #1
5.0 / 5.0

# 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 0 ms 208 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 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 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 1 ms 208 KB Output is correct
7 Correct 1 ms 228 KB Output is correct
8 Correct 0 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 1 ms 464 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 420 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 0 ms 424 KB Output is correct
16 Correct 1 ms 464 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 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 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 976 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 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 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 976 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 976 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 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 976 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 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 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 976 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 976 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 976 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 976 KB Output is correct
31 Correct 1 ms 976 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 976 KB Output is correct
34 Correct 1 ms 988 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 976 KB Output is correct
37 Correct 1 ms 976 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 976 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 976 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 976 KB Output is correct
47 Correct 1 ms 976 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 1 ms 976 KB Output is correct
50 Correct 1 ms 1040 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 976 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 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 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 976 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 976 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 976 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 976 KB Output is correct
31 Correct 1 ms 976 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 976 KB Output is correct
34 Correct 1 ms 976 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 976 KB Output is correct
37 Correct 1 ms 976 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 976 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 976 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 976 KB Output is correct
47 Correct 1 ms 976 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 2 ms 976 KB Output is correct
50 Correct 1 ms 976 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 976 KB Output is correct
11 Correct 1 ms 976 KB Output is correct
12 Correct 1 ms 976 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 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 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 976 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 976 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 976 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 976 KB Output is correct
31 Correct 1 ms 976 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 976 KB Output is correct
34 Correct 1 ms 988 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 976 KB Output is correct
37 Correct 1 ms 976 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 976 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 976 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 976 KB Output is correct
47 Correct 1 ms 976 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 1 ms 976 KB Output is correct
50 Correct 1 ms 1040 KB Output is correct
51 Correct 1 ms 976 KB Output is correct
52 Correct 1 ms 976 KB Output is correct
53 Correct 1 ms 976 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 976 KB Output is correct
57 Correct 1 ms 976 KB Output is correct
58 Correct 1 ms 976 KB Output is correct
59 Correct 1 ms 976 KB Output is correct
60 Correct 1 ms 976 KB Output is correct
61 Correct 1 ms 976 KB Output is correct
62 Correct 1 ms 976 KB Output is correct
63 Correct 1 ms 976 KB Output is correct
64 Correct 1 ms 976 KB Output is correct
65 Correct 1 ms 976 KB Output is correct
66 Correct 1 ms 976 KB Output is correct
67 Correct 1 ms 976 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 976 KB Output is correct
72 Correct 1 ms 976 KB Output is correct
73 Correct 1 ms 976 KB Output is correct
74 Correct 2 ms 976 KB Output is correct
75 Correct 1 ms 976 KB Output is correct
76 Correct 0 ms 208 KB Output is correct
77 Correct 1 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 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 464 KB Output is correct
85 Correct 1 ms 464 KB Output is correct
86 Correct 1 ms 464 KB Output is correct
87 Correct 1 ms 464 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 1 ms 464 KB Output is correct
92 Correct 1 ms 976 KB Output is correct
93 Correct 1 ms 1056 KB Output is correct
94 Correct 1 ms 1060 KB Output is correct
95 Correct 1 ms 1056 KB Output is correct
96 Correct 1 ms 976 KB Output is correct
97 Correct 1 ms 1064 KB Output is correct
98 Correct 1 ms 976 KB Output is correct
99 Correct 1 ms 1060 KB Output is correct
100 Correct 1 ms 976 KB Output is correct
101 Correct 1 ms 1060 KB Output is correct
102 Correct 1 ms 976 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 976 KB Output is correct
107 Correct 1 ms 976 KB Output is correct
108 Correct 1 ms 976 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 1 ms 976 KB Output is correct
114 Correct 1 ms 1064 KB Output is correct
115 Correct 1 ms 976 KB Output is correct
116 Correct 1 ms 976 KB Output is correct
117 Correct 1 ms 1056 KB Output is correct
118 Correct 1 ms 1060 KB Output is correct
119 Correct 1 ms 1060 KB Output is correct
120 Correct 1 ms 976 KB Output is correct
121 Correct 1 ms 976 KB Output is correct
122 Correct 1 ms 1060 KB Output is correct
123 Correct 1 ms 976 KB Output is correct
124 Correct 1 ms 1060 KB Output is correct
125 Correct 1 ms 976 KB Output is correct
126 Correct 1 ms 976 KB Output is correct
127 Correct 1 ms 1060 KB Output is correct
128 Correct 1 ms 1060 KB Output is correct
129 Correct 1 ms 1064 KB Output is correct
130 Correct 1 ms 1056 KB Output is correct
131 Correct 1 ms 1060 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 1 ms 976 KB Output is correct