oj.uz

Submission #519359

# Submission time Handle Problem Language Result Execution time Memory
519359 2022-01-26T09:00:36 Z Dasha_Gnedko Nice sequence (IZhO18_sequence) C++17
76 / 100
 2000 ms 60280 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], can[N], fl;
vector < int > g[N], ve;

void DFS(int v, int c)
{
    if (!v) c = 0;
    a[v] = c;
    u[v] = 1;
    for(auto to: g[v])
    {
        if (u[to]) fl = 1;
        else DFS(to, c - 1);
    }
    if (c > 0) ve.pb(v);
}

bool good(int len)
{
    for(int i = 0; i <= len; i++)
    {
        can[i] = 1;
        g[i].clear();
    }
    for(int i = m; i <= len; i++)
    {
        g[i - m].pb(i);
        can[i] = 0;
        if (i - n >= 0)
        {
            g[i].pb(i - n);
            can[i - n] = 0;
        }
    }
    for(int i = 0; i <= len; i++)
        u[i] = 0;
    fl = 0;
    ve.clear();
    for(int i = 0; i <= len; i++)
    {
        if (!can[i]) 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 13 ms 23884 KB Ok
2 Correct 13 ms 23808 KB Ok
3 Correct 11 ms 23720 KB Ok
4 Correct 12 ms 23720 KB Ok
5 Correct 12 ms 23756 KB Ok
6 Correct 12 ms 23756 KB Ok
7 Correct 12 ms 23756 KB Ok
8 Correct 11 ms 23756 KB Ok
9 Correct 12 ms 23756 KB Ok
10 Correct 12 ms 23756 KB Ok
11 Correct 12 ms 23812 KB Ok
12 Correct 12 ms 23704 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB Ok
2 Correct 12 ms 23756 KB Ok
3 Correct 11 ms 23820 KB Ok
4 Correct 15 ms 23752 KB Ok
5 Correct 12 ms 23772 KB Ok
6 Correct 13 ms 23972 KB Ok
7 Correct 20 ms 25072 KB Ok
8 Correct 15 ms 24396 KB Ok
9 Correct 20 ms 25260 KB Ok
10 Correct 20 ms 24780 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB Ok
2 Correct 12 ms 23740 KB Ok
3 Correct 12 ms 23756 KB Ok
4 Correct 12 ms 23704 KB Ok
5 Correct 13 ms 23796 KB Ok
6 Correct 12 ms 23756 KB Ok
7 Correct 12 ms 23764 KB Ok
8 Correct 12 ms 23712 KB Ok
9 Correct 12 ms 23756 KB Ok
10 Correct 12 ms 23760 KB Ok
11 Correct 12 ms 23708 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23756 KB Ok
2 Correct 12 ms 23756 KB Ok
3 Correct 12 ms 23756 KB Ok
4 Correct 12 ms 23784 KB Ok
5 Correct 12 ms 23756 KB Ok
6 Correct 571 ms 45184 KB Ok
7 Correct 414 ms 47520 KB Ok
8 Correct 975 ms 50628 KB Ok
9 Correct 611 ms 47852 KB Ok
10 Correct 350 ms 37920 KB Ok
11 Correct 630 ms 50204 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23884 KB Ok
2 Correct 13 ms 23808 KB Ok
3 Correct 11 ms 23720 KB Ok
4 Correct 12 ms 23720 KB Ok
5 Correct 12 ms 23756 KB Ok
6 Correct 12 ms 23756 KB Ok
7 Correct 12 ms 23756 KB Ok
8 Correct 11 ms 23756 KB Ok
9 Correct 12 ms 23756 KB Ok
10 Correct 12 ms 23756 KB Ok
11 Correct 12 ms 23812 KB Ok
12 Correct 12 ms 23704 KB Ok
13 Correct 12 ms 23756 KB Ok
14 Correct 12 ms 23740 KB Ok
15 Correct 12 ms 23756 KB Ok
16 Correct 12 ms 23704 KB Ok
17 Correct 13 ms 23796 KB Ok
18 Correct 12 ms 23756 KB Ok
19 Correct 12 ms 23764 KB Ok
20 Correct 12 ms 23712 KB Ok
21 Correct 12 ms 23756 KB Ok
22 Correct 12 ms 23760 KB Ok
23 Correct 12 ms 23708 KB Ok
24 Correct 13 ms 24012 KB Ok
25 Correct 18 ms 24004 KB Ok
26 Correct 15 ms 24012 KB Ok
27 Correct 14 ms 24008 KB Ok
28 Correct 14 ms 23984 KB Ok
29 Correct 13 ms 23884 KB Ok
30 Correct 13 ms 23952 KB Ok
31 Correct 15 ms 24012 KB Ok
32 Correct 15 ms 23996 KB Ok
33 Correct 15 ms 24012 KB Ok
34 Correct 22 ms 24268 KB Ok
35 Correct 21 ms 24388 KB Ok
36 Correct 24 ms 24364 KB Ok
37 Correct 22 ms 24396 KB Ok
38 Correct 24 ms 24396 KB Ok
39 Correct 27 ms 24356 KB Ok
40 Correct 28 ms 24280 KB Ok
41 Correct 23 ms 24376 KB Ok
42 Correct 28 ms 24388 KB Ok
43 Correct 22 ms 24328 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23884 KB Ok
2 Correct 13 ms 23808 KB Ok
3 Correct 11 ms 23720 KB Ok
4 Correct 12 ms 23720 KB Ok
5 Correct 12 ms 23756 KB Ok
6 Correct 12 ms 23756 KB Ok
7 Correct 12 ms 23756 KB Ok
8 Correct 11 ms 23756 KB Ok
9 Correct 12 ms 23756 KB Ok
10 Correct 12 ms 23756 KB Ok
11 Correct 12 ms 23812 KB Ok
12 Correct 12 ms 23704 KB Ok
13 Correct 12 ms 23756 KB Ok
14 Correct 12 ms 23756 KB Ok
15 Correct 11 ms 23820 KB Ok
16 Correct 15 ms 23752 KB Ok
17 Correct 12 ms 23772 KB Ok
18 Correct 13 ms 23972 KB Ok
19 Correct 20 ms 25072 KB Ok
20 Correct 15 ms 24396 KB Ok
21 Correct 20 ms 25260 KB Ok
22 Correct 20 ms 24780 KB Ok
23 Correct 12 ms 23756 KB Ok
24 Correct 12 ms 23740 KB Ok
25 Correct 12 ms 23756 KB Ok
26 Correct 12 ms 23704 KB Ok
27 Correct 13 ms 23796 KB Ok
28 Correct 12 ms 23756 KB Ok
29 Correct 12 ms 23764 KB Ok
30 Correct 12 ms 23712 KB Ok
31 Correct 12 ms 23756 KB Ok
32 Correct 12 ms 23760 KB Ok
33 Correct 12 ms 23708 KB Ok
34 Correct 13 ms 24012 KB Ok
35 Correct 18 ms 24004 KB Ok
36 Correct 15 ms 24012 KB Ok
37 Correct 14 ms 24008 KB Ok
38 Correct 14 ms 23984 KB Ok
39 Correct 13 ms 23884 KB Ok
40 Correct 13 ms 23952 KB Ok
41 Correct 15 ms 24012 KB Ok
42 Correct 15 ms 23996 KB Ok
43 Correct 15 ms 24012 KB Ok
44 Correct 22 ms 24268 KB Ok
45 Correct 21 ms 24388 KB Ok
46 Correct 24 ms 24364 KB Ok
47 Correct 22 ms 24396 KB Ok
48 Correct 24 ms 24396 KB Ok
49 Correct 27 ms 24356 KB Ok
50 Correct 28 ms 24280 KB Ok
51 Correct 23 ms 24376 KB Ok
52 Correct 28 ms 24388 KB Ok
53 Correct 22 ms 24328 KB Ok
54 Correct 285 ms 30196 KB Ok
55 Correct 426 ms 30748 KB Ok
56 Correct 379 ms 31068 KB Ok
57 Correct 229 ms 29264 KB Ok
58 Correct 320 ms 30168 KB Ok
59 Correct 272 ms 29704 KB Ok
60 Correct 210 ms 29172 KB Ok
61 Correct 242 ms 29756 KB Ok
62 Correct 381 ms 30352 KB Ok
63 Correct 259 ms 29464 KB Ok
64 Correct 362 ms 30432 KB Ok
65 Correct 339 ms 30600 KB Ok
66 Correct 263 ms 29884 KB Ok
67 Correct 202 ms 29736 KB Ok
68 Correct 282 ms 29952 KB Ok
69 Correct 969 ms 40876 KB Ok
70 Correct 984 ms 41396 KB Ok
71 Correct 1072 ms 41032 KB Ok
72 Correct 920 ms 40600 KB Ok
73 Correct 1020 ms 41208 KB Ok
74 Correct 988 ms 41104 KB Ok
75 Correct 1012 ms 41168 KB Ok
76 Correct 1025 ms 40932 KB Ok
77 Correct 1028 ms 41036 KB Ok
78 Correct 1031 ms 40652 KB Ok
79 Correct 1109 ms 41136 KB Ok
80 Correct 1131 ms 41276 KB Ok
81 Correct 1178 ms 41116 KB Ok
82 Correct 1240 ms 40996 KB Ok
83 Correct 1100 ms 41064 KB Ok

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23884 KB Ok
2 Correct 13 ms 23808 KB Ok
3 Correct 11 ms 23720 KB Ok
4 Correct 12 ms 23720 KB Ok
5 Correct 12 ms 23756 KB Ok
6 Correct 12 ms 23756 KB Ok
7 Correct 12 ms 23756 KB Ok
8 Correct 11 ms 23756 KB Ok
9 Correct 12 ms 23756 KB Ok
10 Correct 12 ms 23756 KB Ok
11 Correct 12 ms 23812 KB Ok
12 Correct 12 ms 23704 KB Ok
13 Correct 12 ms 23756 KB Ok
14 Correct 12 ms 23756 KB Ok
15 Correct 11 ms 23820 KB Ok
16 Correct 15 ms 23752 KB Ok
17 Correct 12 ms 23772 KB Ok
18 Correct 13 ms 23972 KB Ok
19 Correct 20 ms 25072 KB Ok
20 Correct 15 ms 24396 KB Ok
21 Correct 20 ms 25260 KB Ok
22 Correct 20 ms 24780 KB Ok
23 Correct 12 ms 23756 KB Ok
24 Correct 12 ms 23740 KB Ok
25 Correct 12 ms 23756 KB Ok
26 Correct 12 ms 23704 KB Ok
27 Correct 13 ms 23796 KB Ok
28 Correct 12 ms 23756 KB Ok
29 Correct 12 ms 23764 KB Ok
30 Correct 12 ms 23712 KB Ok
31 Correct 12 ms 23756 KB Ok
32 Correct 12 ms 23760 KB Ok
33 Correct 12 ms 23708 KB Ok
34 Correct 12 ms 23756 KB Ok
35 Correct 12 ms 23756 KB Ok
36 Correct 12 ms 23756 KB Ok
37 Correct 12 ms 23784 KB Ok
38 Correct 12 ms 23756 KB Ok
39 Correct 571 ms 45184 KB Ok
40 Correct 414 ms 47520 KB Ok
41 Correct 975 ms 50628 KB Ok
42 Correct 611 ms 47852 KB Ok
43 Correct 350 ms 37920 KB Ok
44 Correct 630 ms 50204 KB Ok
45 Correct 13 ms 24012 KB Ok
46 Correct 18 ms 24004 KB Ok
47 Correct 15 ms 24012 KB Ok
48 Correct 14 ms 24008 KB Ok
49 Correct 14 ms 23984 KB Ok
50 Correct 13 ms 23884 KB Ok
51 Correct 13 ms 23952 KB Ok
52 Correct 15 ms 24012 KB Ok
53 Correct 15 ms 23996 KB Ok
54 Correct 15 ms 24012 KB Ok
55 Correct 22 ms 24268 KB Ok
56 Correct 21 ms 24388 KB Ok
57 Correct 24 ms 24364 KB Ok
58 Correct 22 ms 24396 KB Ok
59 Correct 24 ms 24396 KB Ok
60 Correct 27 ms 24356 KB Ok
61 Correct 28 ms 24280 KB Ok
62 Correct 23 ms 24376 KB Ok
63 Correct 28 ms 24388 KB Ok
64 Correct 22 ms 24328 KB Ok
65 Correct 285 ms 30196 KB Ok
66 Correct 426 ms 30748 KB Ok
67 Correct 379 ms 31068 KB Ok
68 Correct 229 ms 29264 KB Ok
69 Correct 320 ms 30168 KB Ok
70 Correct 272 ms 29704 KB Ok
71 Correct 210 ms 29172 KB Ok
72 Correct 242 ms 29756 KB Ok
73 Correct 381 ms 30352 KB Ok
74 Correct 259 ms 29464 KB Ok
75 Correct 362 ms 30432 KB Ok
76 Correct 339 ms 30600 KB Ok
77 Correct 263 ms 29884 KB Ok
78 Correct 202 ms 29736 KB Ok
79 Correct 282 ms 29952 KB Ok
80 Correct 969 ms 40876 KB Ok
81 Correct 984 ms 41396 KB Ok
82 Correct 1072 ms 41032 KB Ok
83 Correct 920 ms 40600 KB Ok
84 Correct 1020 ms 41208 KB Ok
85 Correct 988 ms 41104 KB Ok
86 Correct 1012 ms 41168 KB Ok
87 Correct 1025 ms 40932 KB Ok
88 Correct 1028 ms 41036 KB Ok
89 Correct 1031 ms 40652 KB Ok
90 Correct 1109 ms 41136 KB Ok
91 Correct 1131 ms 41276 KB Ok
92 Correct 1178 ms 41116 KB Ok
93 Correct 1240 ms 40996 KB Ok
94 Correct 1100 ms 41064 KB Ok
95 Correct 683 ms 40356 KB Ok
96 Correct 1380 ms 48868 KB Ok
97 Correct 1319 ms 44264 KB Ok
98 Correct 642 ms 43092 KB Ok
99 Correct 923 ms 44036 KB Ok
100 Correct 1251 ms 43136 KB Ok
101 Correct 1124 ms 45760 KB Ok
102 Correct 1209 ms 43908 KB Ok
103 Correct 1467 ms 45392 KB Ok
104 Correct 1497 ms 47040 KB Ok
105 Correct 1358 ms 47692 KB Ok
106 Correct 1236 ms 47408 KB Ok
107 Correct 1060 ms 45824 KB Ok
108 Correct 1688 ms 46992 KB Ok
109 Correct 1347 ms 48852 KB Ok
110 Execution timed out 2077 ms 60280 KB Time limit exceeded
111 Halted 0 ms 0 KB -