oj.uz

Submission #519366

# Submission time Handle Problem Language Result Execution time Memory
519366 2022-01-26T09:08:01 Z Dasha_Gnedko Nice sequence (IZhO18_sequence) C++17
100 / 100
 1937 ms 53564 KB 
#include <bits/stdc++.h>

//#include <ext/pb_ds/detail/standard_policies.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx2")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")

using namespace std;

//using namespace __gnu_pbds;
//template <typename T> using ordered_set = tree <T, null_type, less < T >, rb_tree_tag, tree_order_statistics_node_update>;

mt19937 gen(time(0));

#define ll long long
#define ld long double
#define pb push_back
#define F first
#define S second
#define TIME clock() * 1.0 / CLOCKS_PER_SEC
#define sz(a) int32_t(a.size())
#define endl '\n'
//#define int long long

const int N = 1e6 + 100;
const int M = 31;
const int mod = 998244353;
const int inf = 1e9 + 7;

int a[N], n, m, u[N], fl, len;
vector < int > ve;

void DFS(int v, int c)
{
    if (!v) c = 0;
    a[v] = c;
    u[v] = 1;
    if (v >= n)
    {
        if (u[v - n]) fl = 1;
        else DFS(v - n, c - 1);
    }
    if (v + m <= len)
    {
        if (u[v + m]) fl = 1;
        else DFS(v + m, c - 1);
    }
    if (c > 0) ve.pb(v);
}

bool good(int d)
{
    len = d;
    for(int i = 0; i <= len; i++)
        u[i] = 0;
    fl = 0;
    ve.clear();
    for(int i = 0; i <= len; i++)
    {
        if (i >= m) continue;
        if (i + n <= len) continue;
        DFS(i, len);
    }
    if (fl) return 0;
    for(int i = 0; i < sz(ve); i++)
        a[ve[i]] = i + 1;
    for(int i = len; i >= 0; i--)
    {
        if (!u[i]) return 0;
        if (i) a[i] -= a[i - 1];
    }
    return 1;
}

void solve()
{
    cin >> n >> m;
    int x = n, y = m;
    if (n < m) swap(n, m);
    if (n % m == 0)
    {
        cout << n - 1 << endl;
        for(int i = 0; i < n - 1; i++)
        {
            if (x == max(x, y)) cout << "1 ";
            else cout << "-1 ";
        }
        cout << endl;
        return;
    }
    int l = n, r = n + m, ans = -1;
    while (l <= r)
    {
        int mid = (l + r) / 2;
        if (good(mid))
        {
            ans = mid;
            l = mid + 1;
        }
        else r = mid - 1;
    }
    good(ans);
    cout << ans << endl;
    for(int i = 1; i <= ans; i++)
    {
        if (x > y) a[i] *= -1;
        cout << a[i] << " ";
    }
}

int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
#endif // LOCAL

    int T;
    cin >> T;
    while (T--)
        solve();
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Ok
2 Correct 0 ms 328 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 0 ms 332 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 0 ms 332 KB Ok
7 Correct 1 ms 332 KB Ok
8 Correct 1 ms 328 KB Ok
9 Correct 0 ms 332 KB Ok
10 Correct 1 ms 204 KB Ok
11 Correct 0 ms 332 KB Ok
12 Correct 1 ms 332 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 332 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 1 ms 204 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 2 ms 444 KB Ok
7 Correct 5 ms 1092 KB Ok
8 Correct 3 ms 708 KB Ok
9 Correct 6 ms 1220 KB Ok
10 Correct 4 ms 844 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 328 KB Ok
2 Correct 1 ms 204 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 1 ms 328 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 0 ms 332 KB Ok
7 Correct 1 ms 332 KB Ok
8 Correct 1 ms 204 KB Ok
9 Correct 1 ms 332 KB Ok
10 Correct 0 ms 328 KB Ok
11 Correct 1 ms 332 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Ok
2 Correct 1 ms 356 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 1 ms 328 KB Ok
5 Correct 1 ms 308 KB Ok
6 Correct 273 ms 13580 KB Ok
7 Correct 268 ms 14140 KB Ok
8 Correct 478 ms 17468 KB Ok
9 Correct 331 ms 16008 KB Ok
10 Correct 212 ms 8884 KB Ok
11 Correct 338 ms 16808 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Ok
2 Correct 0 ms 328 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 0 ms 332 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 0 ms 332 KB Ok
7 Correct 1 ms 332 KB Ok
8 Correct 1 ms 328 KB Ok
9 Correct 0 ms 332 KB Ok
10 Correct 1 ms 204 KB Ok
11 Correct 0 ms 332 KB Ok
12 Correct 1 ms 332 KB Ok
13 Correct 0 ms 328 KB Ok
14 Correct 1 ms 204 KB Ok
15 Correct 1 ms 332 KB Ok
16 Correct 1 ms 328 KB Ok
17 Correct 1 ms 332 KB Ok
18 Correct 0 ms 332 KB Ok
19 Correct 1 ms 332 KB Ok
20 Correct 1 ms 204 KB Ok
21 Correct 1 ms 332 KB Ok
22 Correct 0 ms 328 KB Ok
23 Correct 1 ms 332 KB Ok
24 Correct 2 ms 336 KB Ok
25 Correct 3 ms 336 KB Ok
26 Correct 3 ms 328 KB Ok
27 Correct 4 ms 332 KB Ok
28 Correct 2 ms 324 KB Ok
29 Correct 2 ms 324 KB Ok
30 Correct 3 ms 332 KB Ok
31 Correct 3 ms 332 KB Ok
32 Correct 3 ms 332 KB Ok
33 Correct 4 ms 316 KB Ok
34 Correct 11 ms 716 KB Ok
35 Correct 7 ms 716 KB Ok
36 Correct 8 ms 716 KB Ok
37 Correct 8 ms 680 KB Ok
38 Correct 7 ms 716 KB Ok
39 Correct 7 ms 716 KB Ok
40 Correct 8 ms 716 KB Ok
41 Correct 8 ms 716 KB Ok
42 Correct 8 ms 716 KB Ok
43 Correct 7 ms 700 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Ok
2 Correct 0 ms 328 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 0 ms 332 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 0 ms 332 KB Ok
7 Correct 1 ms 332 KB Ok
8 Correct 1 ms 328 KB Ok
9 Correct 0 ms 332 KB Ok
10 Correct 1 ms 204 KB Ok
11 Correct 0 ms 332 KB Ok
12 Correct 1 ms 332 KB Ok
13 Correct 1 ms 204 KB Ok
14 Correct 1 ms 332 KB Ok
15 Correct 1 ms 332 KB Ok
16 Correct 1 ms 204 KB Ok
17 Correct 1 ms 332 KB Ok
18 Correct 2 ms 444 KB Ok
19 Correct 5 ms 1092 KB Ok
20 Correct 3 ms 708 KB Ok
21 Correct 6 ms 1220 KB Ok
22 Correct 4 ms 844 KB Ok
23 Correct 0 ms 328 KB Ok
24 Correct 1 ms 204 KB Ok
25 Correct 1 ms 332 KB Ok
26 Correct 1 ms 328 KB Ok
27 Correct 1 ms 332 KB Ok
28 Correct 0 ms 332 KB Ok
29 Correct 1 ms 332 KB Ok
30 Correct 1 ms 204 KB Ok
31 Correct 1 ms 332 KB Ok
32 Correct 0 ms 328 KB Ok
33 Correct 1 ms 332 KB Ok
34 Correct 2 ms 336 KB Ok
35 Correct 3 ms 336 KB Ok
36 Correct 3 ms 328 KB Ok
37 Correct 4 ms 332 KB Ok
38 Correct 2 ms 324 KB Ok
39 Correct 2 ms 324 KB Ok
40 Correct 3 ms 332 KB Ok
41 Correct 3 ms 332 KB Ok
42 Correct 3 ms 332 KB Ok
43 Correct 4 ms 316 KB Ok
44 Correct 11 ms 716 KB Ok
45 Correct 7 ms 716 KB Ok
46 Correct 8 ms 716 KB Ok
47 Correct 8 ms 680 KB Ok
48 Correct 7 ms 716 KB Ok
49 Correct 7 ms 716 KB Ok
50 Correct 8 ms 716 KB Ok
51 Correct 8 ms 716 KB Ok
52 Correct 8 ms 716 KB Ok
53 Correct 7 ms 700 KB Ok
54 Correct 141 ms 3560 KB Ok
55 Correct 208 ms 4144 KB Ok
56 Correct 185 ms 4324 KB Ok
57 Correct 120 ms 2956 KB Ok
58 Correct 156 ms 3524 KB Ok
59 Correct 141 ms 3256 KB Ok
60 Correct 108 ms 2884 KB Ok
61 Correct 129 ms 3184 KB Ok
62 Correct 195 ms 3692 KB Ok
63 Correct 130 ms 3264 KB Ok
64 Correct 180 ms 3812 KB Ok
65 Correct 166 ms 3868 KB Ok
66 Correct 133 ms 3288 KB Ok
67 Correct 114 ms 3408 KB Ok
68 Correct 156 ms 3376 KB Ok
69 Correct 337 ms 12444 KB Ok
70 Correct 318 ms 12836 KB Ok
71 Correct 334 ms 12588 KB Ok
72 Correct 335 ms 12348 KB Ok
73 Correct 312 ms 12664 KB Ok
74 Correct 314 ms 12584 KB Ok
75 Correct 326 ms 12620 KB Ok
76 Correct 328 ms 12568 KB Ok
77 Correct 315 ms 12484 KB Ok
78 Correct 306 ms 12292 KB Ok
79 Correct 357 ms 12708 KB Ok
80 Correct 310 ms 12788 KB Ok
81 Correct 314 ms 12708 KB Ok
82 Correct 316 ms 12592 KB Ok
83 Correct 323 ms 12628 KB Ok

Subtask #7
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Ok
2 Correct 0 ms 328 KB Ok
3 Correct 1 ms 332 KB Ok
4 Correct 0 ms 332 KB Ok
5 Correct 1 ms 332 KB Ok
6 Correct 0 ms 332 KB Ok
7 Correct 1 ms 332 KB Ok
8 Correct 1 ms 328 KB Ok
9 Correct 0 ms 332 KB Ok
10 Correct 1 ms 204 KB Ok
11 Correct 0 ms 332 KB Ok
12 Correct 1 ms 332 KB Ok
13 Correct 1 ms 204 KB Ok
14 Correct 1 ms 332 KB Ok
15 Correct 1 ms 332 KB Ok
16 Correct 1 ms 204 KB Ok
17 Correct 1 ms 332 KB Ok
18 Correct 2 ms 444 KB Ok
19 Correct 5 ms 1092 KB Ok
20 Correct 3 ms 708 KB Ok
21 Correct 6 ms 1220 KB Ok
22 Correct 4 ms 844 KB Ok
23 Correct 0 ms 328 KB Ok
24 Correct 1 ms 204 KB Ok
25 Correct 1 ms 332 KB Ok
26 Correct 1 ms 328 KB Ok
27 Correct 1 ms 332 KB Ok
28 Correct 0 ms 332 KB Ok
29 Correct 1 ms 332 KB Ok
30 Correct 1 ms 204 KB Ok
31 Correct 1 ms 332 KB Ok
32 Correct 0 ms 328 KB Ok
33 Correct 1 ms 332 KB Ok
34 Correct 1 ms 208 KB Ok
35 Correct 1 ms 356 KB Ok
36 Correct 1 ms 332 KB Ok
37 Correct 1 ms 328 KB Ok
38 Correct 1 ms 308 KB Ok
39 Correct 273 ms 13580 KB Ok
40 Correct 268 ms 14140 KB Ok
41 Correct 478 ms 17468 KB Ok
42 Correct 331 ms 16008 KB Ok
43 Correct 212 ms 8884 KB Ok
44 Correct 338 ms 16808 KB Ok
45 Correct 2 ms 336 KB Ok
46 Correct 3 ms 336 KB Ok
47 Correct 3 ms 328 KB Ok
48 Correct 4 ms 332 KB Ok
49 Correct 2 ms 324 KB Ok
50 Correct 2 ms 324 KB Ok
51 Correct 3 ms 332 KB Ok
52 Correct 3 ms 332 KB Ok
53 Correct 3 ms 332 KB Ok
54 Correct 4 ms 316 KB Ok
55 Correct 11 ms 716 KB Ok
56 Correct 7 ms 716 KB Ok
57 Correct 8 ms 716 KB Ok
58 Correct 8 ms 680 KB Ok
59 Correct 7 ms 716 KB Ok
60 Correct 7 ms 716 KB Ok
61 Correct 8 ms 716 KB Ok
62 Correct 8 ms 716 KB Ok
63 Correct 8 ms 716 KB Ok
64 Correct 7 ms 700 KB Ok
65 Correct 141 ms 3560 KB Ok
66 Correct 208 ms 4144 KB Ok
67 Correct 185 ms 4324 KB Ok
68 Correct 120 ms 2956 KB Ok
69 Correct 156 ms 3524 KB Ok
70 Correct 141 ms 3256 KB Ok
71 Correct 108 ms 2884 KB Ok
72 Correct 129 ms 3184 KB Ok
73 Correct 195 ms 3692 KB Ok
74 Correct 130 ms 3264 KB Ok
75 Correct 180 ms 3812 KB Ok
76 Correct 166 ms 3868 KB Ok
77 Correct 133 ms 3288 KB Ok
78 Correct 114 ms 3408 KB Ok
79 Correct 156 ms 3376 KB Ok
80 Correct 337 ms 12444 KB Ok
81 Correct 318 ms 12836 KB Ok
82 Correct 334 ms 12588 KB Ok
83 Correct 335 ms 12348 KB Ok
84 Correct 312 ms 12664 KB Ok
85 Correct 314 ms 12584 KB Ok
86 Correct 326 ms 12620 KB Ok
87 Correct 328 ms 12568 KB Ok
88 Correct 315 ms 12484 KB Ok
89 Correct 306 ms 12292 KB Ok
90 Correct 357 ms 12708 KB Ok
91 Correct 310 ms 12788 KB Ok
92 Correct 314 ms 12708 KB Ok
93 Correct 316 ms 12592 KB Ok
94 Correct 323 ms 12628 KB Ok
95 Correct 243 ms 8484 KB Ok
96 Correct 509 ms 12716 KB Ok
97 Correct 565 ms 10680 KB Ok
98 Correct 294 ms 8828 KB Ok
99 Correct 426 ms 10356 KB Ok
100 Correct 526 ms 10500 KB Ok
101 Correct 510 ms 10464 KB Ok
102 Correct 411 ms 10296 KB Ok
103 Correct 449 ms 10904 KB Ok
104 Correct 614 ms 11896 KB Ok
105 Correct 578 ms 11984 KB Ok
106 Correct 366 ms 11192 KB Ok
107 Correct 484 ms 10552 KB Ok
108 Correct 603 ms 11844 KB Ok
109 Correct 476 ms 12316 KB Ok
110 Correct 1459 ms 50680 KB Ok
111 Correct 1417 ms 51592 KB Ok
112 Correct 1520 ms 53052 KB Ok
113 Correct 1421 ms 50996 KB Ok
114 Correct 1494 ms 53564 KB Ok
115 Correct 1448 ms 51892 KB Ok
116 Correct 1453 ms 52976 KB Ok
117 Correct 1395 ms 50556 KB Ok
118 Correct 1525 ms 52868 KB Ok
119 Correct 1496 ms 50576 KB Ok
120 Correct 1448 ms 51168 KB Ok
121 Correct 1453 ms 51736 KB Ok
122 Correct 1419 ms 51648 KB Ok
123 Correct 1413 ms 51676 KB Ok
124 Correct 1513 ms 53148 KB Ok
125 Correct 1937 ms 34040 KB Ok