oj.uz

Submission #173971

# Submission time Handle Problem Language Result Execution time Memory
173971 2020-01-05T22:03:08 Z mcdx9524 Nice sequence (IZhO18_sequence) C++14
76 / 100
 2000 ms 74912 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());

int rand(int l, int r) {
    return uniform_int_distribution<int> (l, r) (rnd);
}

const int N = 5e5 + 7;

int n, m;
vector <int> p;
vector <int> ord;
vector <int> g[N];
bool used[N];
int col[N];

bool cycle(int v) {
    col[v] = 1;
    for (int u : g[v]) {
        if (col[u] == 0) {
            if (cycle(u)) {
                return true;
            }
        } else if (col[u] == 1) {
            return true;
        }
    }
    col[v] = 2;
    return false;
}

void dfs(int v) {
    if (used[v] == true) {
        return;
    }
    used[v] = true;
    for (int u : g[v]) {
        dfs(u);
    }
    ord.push_back(v);
}

bool build(int sz, bool kek) {
    ord.clear();
    for (int i = 0; i < N; i++) {
        g[i].clear();
        used[i] = false;
        col[i] = 0;
    }
    for (int i = 1; i <= sz; i++) {
        // p[i] - p[i - n] < 0
        // p[i] < p[i - n]
        if (i - n >= 0) {
            g[i - n].push_back(i);
        }
        // p[i] > p[i - m]
        if (i - m >= 0) {
            g[i].push_back(i - m);
        }
    }
    for (int i = 0; i <= sz; i++) {
        if (cycle(i)) {
            return false;
        }
    }
    if (!kek) return true;
    for (int i = 0; i <= sz; i++) {
        dfs(i);
    }
    p.resize(sz + 1, 0);
    int cur = sz;
    reverse(ord.begin(), ord.end());
    for (int x : ord) {
        p[x] = cur--;
    }
    for (int i = 0; i <= sz; i++) {
        if (!p[i]) {
            p[i] = cur--;
        }
    }
    return true;
}

void solve() {
    cin >> n >> m;
    int l = max(n, m) - 1, r = n + m + 7;
    int ans = n + m - 1 - __gcd(n, m);
    /*
    while (l <= r) {
        int md = rand(l, r);
        if (build(md, 0)) {
            l = md + 1;
            ans = md;
        } else {
            r = md - 1;
        }
    }
    */
    build(ans, 1);
    cout << ans << '\n';
    for (int i = 1; i <= ans; i++) {
        cout << p[i] - p[i - 1] << ' ';
    }
    cout << '\n';
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t;
    cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}

Compilation message

sequence.cpp: In function 'void solve()':
sequence.cpp:91:9: warning: unused variable 'l' [-Wunused-variable]
     int l = max(n, m) - 1, r = n + m + 7;
         ^
sequence.cpp:91:28: warning: unused variable 'r' [-Wunused-variable]
     int l = max(n, m) - 1, r = n + m + 7;
                            ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 14456 KB Ok
2 Correct 26 ms 14584 KB Ok
3 Correct 26 ms 14456 KB Ok
4 Correct 26 ms 14536 KB Ok
5 Correct 26 ms 14456 KB Ok
6 Correct 26 ms 14456 KB Ok
7 Correct 26 ms 14456 KB Ok
8 Correct 26 ms 14456 KB Ok
9 Correct 26 ms 14584 KB Ok
10 Correct 26 ms 14584 KB Ok
11 Correct 26 ms 14584 KB Ok
12 Correct 26 ms 14456 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 14456 KB Ok
2 Correct 26 ms 14456 KB Ok
3 Correct 31 ms 14584 KB Ok
4 Correct 26 ms 14516 KB Ok
5 Correct 26 ms 14572 KB Ok
6 Correct 28 ms 14712 KB Ok
7 Correct 37 ms 15592 KB Ok
8 Correct 31 ms 14968 KB Ok
9 Correct 38 ms 15736 KB Ok
10 Correct 34 ms 15224 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 14584 KB Ok
2 Correct 26 ms 14456 KB Ok
3 Correct 26 ms 14584 KB Ok
4 Correct 27 ms 14584 KB Ok
5 Correct 30 ms 14584 KB Ok
6 Correct 27 ms 14584 KB Ok
7 Correct 26 ms 14456 KB Ok
8 Correct 26 ms 14588 KB Ok
9 Correct 31 ms 14456 KB Ok
10 Correct 32 ms 14584 KB Ok
11 Correct 27 ms 14596 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 14456 KB Ok
2 Correct 33 ms 14604 KB Ok
3 Correct 26 ms 14584 KB Ok
4 Correct 27 ms 14584 KB Ok
5 Correct 28 ms 14456 KB Ok
6 Correct 148 ms 27496 KB Ok
7 Correct 137 ms 33736 KB Ok
8 Correct 219 ms 36348 KB Ok
9 Correct 170 ms 33704 KB Ok
10 Correct 109 ms 24452 KB Ok
11 Correct 163 ms 30356 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 14456 KB Ok
2 Correct 26 ms 14584 KB Ok
3 Correct 26 ms 14456 KB Ok
4 Correct 26 ms 14536 KB Ok
5 Correct 26 ms 14456 KB Ok
6 Correct 26 ms 14456 KB Ok
7 Correct 26 ms 14456 KB Ok
8 Correct 26 ms 14456 KB Ok
9 Correct 26 ms 14584 KB Ok
10 Correct 26 ms 14584 KB Ok
11 Correct 26 ms 14584 KB Ok
12 Correct 26 ms 14456 KB Ok
13 Correct 20 ms 14584 KB Ok
14 Correct 26 ms 14456 KB Ok
15 Correct 26 ms 14584 KB Ok
16 Correct 27 ms 14584 KB Ok
17 Correct 30 ms 14584 KB Ok
18 Correct 27 ms 14584 KB Ok
19 Correct 26 ms 14456 KB Ok
20 Correct 26 ms 14588 KB Ok
21 Correct 31 ms 14456 KB Ok
22 Correct 32 ms 14584 KB Ok
23 Correct 27 ms 14596 KB Ok
24 Correct 29 ms 14840 KB Ok
25 Correct 28 ms 14772 KB Ok
26 Correct 28 ms 14712 KB Ok
27 Correct 28 ms 14712 KB Ok
28 Correct 28 ms 14712 KB Ok
29 Correct 28 ms 14640 KB Ok
30 Correct 27 ms 14712 KB Ok
31 Correct 28 ms 14712 KB Ok
32 Correct 28 ms 14712 KB Ok
33 Correct 28 ms 14716 KB Ok
34 Correct 30 ms 14968 KB Ok
35 Correct 31 ms 14956 KB Ok
36 Correct 31 ms 14968 KB Ok
37 Correct 31 ms 14968 KB Ok
38 Correct 31 ms 14968 KB Ok
39 Correct 32 ms 14968 KB Ok
40 Correct 33 ms 14968 KB Ok
41 Correct 32 ms 14888 KB Ok
42 Correct 31 ms 14840 KB Ok
43 Correct 33 ms 15044 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 14456 KB Ok
2 Correct 26 ms 14584 KB Ok
3 Correct 26 ms 14456 KB Ok
4 Correct 26 ms 14536 KB Ok
5 Correct 26 ms 14456 KB Ok
6 Correct 26 ms 14456 KB Ok
7 Correct 26 ms 14456 KB Ok
8 Correct 26 ms 14456 KB Ok
9 Correct 26 ms 14584 KB Ok
10 Correct 26 ms 14584 KB Ok
11 Correct 26 ms 14584 KB Ok
12 Correct 26 ms 14456 KB Ok
13 Correct 32 ms 14456 KB Ok
14 Correct 26 ms 14456 KB Ok
15 Correct 31 ms 14584 KB Ok
16 Correct 26 ms 14516 KB Ok
17 Correct 26 ms 14572 KB Ok
18 Correct 28 ms 14712 KB Ok
19 Correct 37 ms 15592 KB Ok
20 Correct 31 ms 14968 KB Ok
21 Correct 38 ms 15736 KB Ok
22 Correct 34 ms 15224 KB Ok
23 Correct 20 ms 14584 KB Ok
24 Correct 26 ms 14456 KB Ok
25 Correct 26 ms 14584 KB Ok
26 Correct 27 ms 14584 KB Ok
27 Correct 30 ms 14584 KB Ok
28 Correct 27 ms 14584 KB Ok
29 Correct 26 ms 14456 KB Ok
30 Correct 26 ms 14588 KB Ok
31 Correct 31 ms 14456 KB Ok
32 Correct 32 ms 14584 KB Ok
33 Correct 27 ms 14596 KB Ok
34 Correct 29 ms 14840 KB Ok
35 Correct 28 ms 14772 KB Ok
36 Correct 28 ms 14712 KB Ok
37 Correct 28 ms 14712 KB Ok
38 Correct 28 ms 14712 KB Ok
39 Correct 28 ms 14640 KB Ok
40 Correct 27 ms 14712 KB Ok
41 Correct 28 ms 14712 KB Ok
42 Correct 28 ms 14712 KB Ok
43 Correct 28 ms 14716 KB Ok
44 Correct 30 ms 14968 KB Ok
45 Correct 31 ms 14956 KB Ok
46 Correct 31 ms 14968 KB Ok
47 Correct 31 ms 14968 KB Ok
48 Correct 31 ms 14968 KB Ok
49 Correct 32 ms 14968 KB Ok
50 Correct 33 ms 14968 KB Ok
51 Correct 32 ms 14888 KB Ok
52 Correct 31 ms 14840 KB Ok
53 Correct 33 ms 15044 KB Ok
54 Correct 126 ms 19756 KB Ok
55 Correct 142 ms 20176 KB Ok
56 Correct 152 ms 20148 KB Ok
57 Correct 99 ms 19116 KB Ok
58 Correct 114 ms 19580 KB Ok
59 Correct 106 ms 19364 KB Ok
60 Correct 94 ms 18884 KB Ok
61 Correct 102 ms 19476 KB Ok
62 Correct 129 ms 20044 KB Ok
63 Correct 114 ms 19264 KB Ok
64 Correct 141 ms 20056 KB Ok
65 Correct 122 ms 19892 KB Ok
66 Correct 115 ms 19632 KB Ok
67 Correct 108 ms 19336 KB Ok
68 Correct 115 ms 19736 KB Ok
69 Correct 266 ms 29280 KB Ok
70 Correct 255 ms 29752 KB Ok
71 Correct 261 ms 29160 KB Ok
72 Correct 258 ms 29288 KB Ok
73 Correct 245 ms 28520 KB Ok
74 Correct 262 ms 28136 KB Ok
75 Correct 260 ms 28400 KB Ok
76 Correct 257 ms 29388 KB Ok
77 Correct 268 ms 27872 KB Ok
78 Correct 272 ms 28140 KB Ok
79 Correct 272 ms 28904 KB Ok
80 Correct 264 ms 29160 KB Ok
81 Correct 280 ms 28276 KB Ok
82 Correct 269 ms 28776 KB Ok
83 Correct 260 ms 28392 KB Ok

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 14456 KB Ok
2 Correct 26 ms 14584 KB Ok
3 Correct 26 ms 14456 KB Ok
4 Correct 26 ms 14536 KB Ok
5 Correct 26 ms 14456 KB Ok
6 Correct 26 ms 14456 KB Ok
7 Correct 26 ms 14456 KB Ok
8 Correct 26 ms 14456 KB Ok
9 Correct 26 ms 14584 KB Ok
10 Correct 26 ms 14584 KB Ok
11 Correct 26 ms 14584 KB Ok
12 Correct 26 ms 14456 KB Ok
13 Correct 32 ms 14456 KB Ok
14 Correct 26 ms 14456 KB Ok
15 Correct 31 ms 14584 KB Ok
16 Correct 26 ms 14516 KB Ok
17 Correct 26 ms 14572 KB Ok
18 Correct 28 ms 14712 KB Ok
19 Correct 37 ms 15592 KB Ok
20 Correct 31 ms 14968 KB Ok
21 Correct 38 ms 15736 KB Ok
22 Correct 34 ms 15224 KB Ok
23 Correct 20 ms 14584 KB Ok
24 Correct 26 ms 14456 KB Ok
25 Correct 26 ms 14584 KB Ok
26 Correct 27 ms 14584 KB Ok
27 Correct 30 ms 14584 KB Ok
28 Correct 27 ms 14584 KB Ok
29 Correct 26 ms 14456 KB Ok
30 Correct 26 ms 14588 KB Ok
31 Correct 31 ms 14456 KB Ok
32 Correct 32 ms 14584 KB Ok
33 Correct 27 ms 14596 KB Ok
34 Correct 33 ms 14456 KB Ok
35 Correct 33 ms 14604 KB Ok
36 Correct 26 ms 14584 KB Ok
37 Correct 27 ms 14584 KB Ok
38 Correct 28 ms 14456 KB Ok
39 Correct 148 ms 27496 KB Ok
40 Correct 137 ms 33736 KB Ok
41 Correct 219 ms 36348 KB Ok
42 Correct 170 ms 33704 KB Ok
43 Correct 109 ms 24452 KB Ok
44 Correct 163 ms 30356 KB Ok
45 Correct 29 ms 14840 KB Ok
46 Correct 28 ms 14772 KB Ok
47 Correct 28 ms 14712 KB Ok
48 Correct 28 ms 14712 KB Ok
49 Correct 28 ms 14712 KB Ok
50 Correct 28 ms 14640 KB Ok
51 Correct 27 ms 14712 KB Ok
52 Correct 28 ms 14712 KB Ok
53 Correct 28 ms 14712 KB Ok
54 Correct 28 ms 14716 KB Ok
55 Correct 30 ms 14968 KB Ok
56 Correct 31 ms 14956 KB Ok
57 Correct 31 ms 14968 KB Ok
58 Correct 31 ms 14968 KB Ok
59 Correct 31 ms 14968 KB Ok
60 Correct 32 ms 14968 KB Ok
61 Correct 33 ms 14968 KB Ok
62 Correct 32 ms 14888 KB Ok
63 Correct 31 ms 14840 KB Ok
64 Correct 33 ms 15044 KB Ok
65 Correct 126 ms 19756 KB Ok
66 Correct 142 ms 20176 KB Ok
67 Correct 152 ms 20148 KB Ok
68 Correct 99 ms 19116 KB Ok
69 Correct 114 ms 19580 KB Ok
70 Correct 106 ms 19364 KB Ok
71 Correct 94 ms 18884 KB Ok
72 Correct 102 ms 19476 KB Ok
73 Correct 129 ms 20044 KB Ok
74 Correct 114 ms 19264 KB Ok
75 Correct 141 ms 20056 KB Ok
76 Correct 122 ms 19892 KB Ok
77 Correct 115 ms 19632 KB Ok
78 Correct 108 ms 19336 KB Ok
79 Correct 115 ms 19736 KB Ok
80 Correct 266 ms 29280 KB Ok
81 Correct 255 ms 29752 KB Ok
82 Correct 261 ms 29160 KB Ok
83 Correct 258 ms 29288 KB Ok
84 Correct 245 ms 28520 KB Ok
85 Correct 262 ms 28136 KB Ok
86 Correct 260 ms 28400 KB Ok
87 Correct 257 ms 29388 KB Ok
88 Correct 268 ms 27872 KB Ok
89 Correct 272 ms 28140 KB Ok
90 Correct 272 ms 28904 KB Ok
91 Correct 264 ms 29160 KB Ok
92 Correct 280 ms 28276 KB Ok
93 Correct 269 ms 28776 KB Ok
94 Correct 260 ms 28392 KB Ok
95 Correct 279 ms 28224 KB Ok
96 Correct 405 ms 34012 KB Ok
97 Correct 364 ms 30760 KB Ok
98 Correct 252 ms 30664 KB Ok
99 Correct 294 ms 30356 KB Ok
100 Correct 321 ms 30952 KB Ok
101 Correct 355 ms 32628 KB Ok
102 Correct 522 ms 30920 KB Ok
103 Correct 316 ms 31800 KB Ok
104 Correct 395 ms 33476 KB Ok
105 Correct 391 ms 34264 KB Ok
106 Correct 337 ms 34076 KB Ok
107 Correct 393 ms 33092 KB Ok
108 Correct 408 ms 33844 KB Ok
109 Correct 427 ms 35008 KB Ok
110 Correct 1695 ms 72856 KB Ok
111 Execution timed out 2029 ms 74912 KB Time limit exceeded
112 Halted 0 ms 0 KB -