oj.uz

Submission #91968

# Submission time Handle Problem Language Result Execution time Memory
91968 2018-12-31T16:44:30 Z popovicirobert Nice sequence (IZhO18_sequence) C++14
100 / 100
 1797 ms 77196 KB 
#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
#define ld long double
// 217
// 44

using namespace std;

const int INF = 5e8;
const int MAXN = (int) 2e5;

vector <int> g[2 * MAXN + 1];
char vis[2 * MAXN + 1];

void dfs(int nod, bool &ok) {
    vis[nod] = 1;
    for(auto it : g[nod]) {
        if(vis[it] == 0) {
            dfs(it, ok);
        }
        else if(vis[it] == 1) {
            ok = 0;
        }
        if(ok == 0) {
            return ;
        }
    }
    vis[nod] = 2;
}

inline bool check(int len, int n, int m) {
    int i;
    for(i = 0; i <= len; i++) {
        g[i].clear();
        vis[i] = 0;
    }
    for(i = 1; i <= len; i++) {
        if(i >= n) {
            g[i - n].push_back(i);
        }
        if(i >= m) {
            g[i].push_back(i - m);
        }
    }
    bool ok = 1;
    for(i = 0; i <= len && ok; i++) {
        if(vis[i] == 0) {
            dfs(i, ok);
        }
    }
    return ok;
}

inline int get(int n, int m) {
    return n + m - __gcd(n, m) - 1;
}

vector <int> ord;
int sp[2 * MAXN + 1];

void dfs1(int nod) {
    vis[nod] = 1;
    for(auto it : g[nod]) {
        if(vis[it] == 0) {
            dfs1(it);
        }
    }
    ord.push_back(nod);
}

inline void solve(int sz, int n, int m) {
    int i;
    for(i = 0; i <= sz; i++) {
        g[i].clear();
        vis[i] = 0;
        if(i - n >= 0) {
            g[i - n].push_back(i);
        }
        if(i - m >= 0) {
            g[i].push_back(i - m);
        }
    }
    ord.clear();
    for(i = 0; i <= sz; i++) {
        if(vis[i] == 0) {
            dfs1(i);
        }
    }
    int val = -INF;
    for(auto it : ord) {
        if(it == 0) {
            val = max(val, 0);
            sp[it] = 0;
            val++;
            continue;
        }
        for(auto itr : g[it]) {
            val = max(val, sp[itr] + 1);
        }
        sp[it] = val;
        val++;
    }
}

int main() {
    //ifstream cin("A.in");
    //ofstream cout("A.out");
    int t, i, j;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin >> t;
    while(t > 0) {
        t--;
        int n, m;
        cin >> n >> m;
        int mn = min(n, m), mx = max(n, m);
        if(mx % mn == 0) {
            cout << mx - 1 << "\n";
            int sign = 1;
            if(mn == n) {
                sign = -1;
            }
            for(i = 1; i < mx; i++) {
                cout << sign << " ";
            }
            if(mx > 1) {
                cout << "\n";
            }
            continue;
        }
        int sz = get(n, m);
        solve(sz, n, m);
        cout << sz << "\n";
        for(i = 1; i <= sz; i++) {
            cout << sp[i] - sp[i - 1] << " ";
        }
        cout << "\n";
    }
    //cin.close();
    //cout.close();
    return 0;
}

Compilation message

sequence.cpp: In function 'int main()':
sequence.cpp:110:15: warning: unused variable 'j' [-Wunused-variable]
     int t, i, j;
               ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9720 KB Ok
4 Correct 10 ms 9720 KB Ok
5 Correct 9 ms 9592 KB Ok
6 Correct 10 ms 9720 KB Ok
7 Correct 10 ms 9720 KB Ok
8 Correct 9 ms 9720 KB Ok
9 Correct 9 ms 9720 KB Ok
10 Correct 9 ms 9720 KB Ok
11 Correct 10 ms 9720 KB Ok
12 Correct 10 ms 9720 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9720 KB Ok
4 Correct 10 ms 9720 KB Ok
5 Correct 10 ms 9720 KB Ok
6 Correct 10 ms 9980 KB Ok
7 Correct 16 ms 10872 KB Ok
8 Correct 12 ms 10232 KB Ok
9 Correct 19 ms 11128 KB Ok
10 Correct 15 ms 10488 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9748 KB Ok
4 Correct 9 ms 9720 KB Ok
5 Correct 10 ms 9720 KB Ok
6 Correct 10 ms 9720 KB Ok
7 Correct 10 ms 9720 KB Ok
8 Correct 9 ms 9720 KB Ok
9 Correct 10 ms 9720 KB Ok
10 Correct 9 ms 9724 KB Ok
11 Correct 10 ms 9720 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9848 KB Ok
4 Correct 9 ms 9720 KB Ok
5 Correct 10 ms 9724 KB Ok
6 Correct 102 ms 24300 KB Ok
7 Correct 88 ms 29288 KB Ok
8 Correct 169 ms 33772 KB Ok
9 Correct 126 ms 31084 KB Ok
10 Correct 74 ms 19952 KB Ok
11 Correct 107 ms 26860 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9720 KB Ok
4 Correct 10 ms 9720 KB Ok
5 Correct 9 ms 9592 KB Ok
6 Correct 10 ms 9720 KB Ok
7 Correct 10 ms 9720 KB Ok
8 Correct 9 ms 9720 KB Ok
9 Correct 9 ms 9720 KB Ok
10 Correct 9 ms 9720 KB Ok
11 Correct 10 ms 9720 KB Ok
12 Correct 10 ms 9720 KB Ok
13 Correct 10 ms 9720 KB Ok
14 Correct 10 ms 9720 KB Ok
15 Correct 10 ms 9748 KB Ok
16 Correct 9 ms 9720 KB Ok
17 Correct 10 ms 9720 KB Ok
18 Correct 10 ms 9720 KB Ok
19 Correct 10 ms 9720 KB Ok
20 Correct 9 ms 9720 KB Ok
21 Correct 10 ms 9720 KB Ok
22 Correct 9 ms 9724 KB Ok
23 Correct 10 ms 9720 KB Ok
24 Correct 11 ms 9976 KB Ok
25 Correct 11 ms 9956 KB Ok
26 Correct 13 ms 9948 KB Ok
27 Correct 11 ms 9848 KB Ok
28 Correct 12 ms 9848 KB Ok
29 Correct 12 ms 9848 KB Ok
30 Correct 12 ms 9848 KB Ok
31 Correct 11 ms 9848 KB Ok
32 Correct 11 ms 9848 KB Ok
33 Correct 11 ms 9848 KB Ok
34 Correct 13 ms 10104 KB Ok
35 Correct 13 ms 10232 KB Ok
36 Correct 14 ms 10360 KB Ok
37 Correct 13 ms 10232 KB Ok
38 Correct 15 ms 10232 KB Ok
39 Correct 14 ms 10104 KB Ok
40 Correct 15 ms 10232 KB Ok
41 Correct 14 ms 10232 KB Ok
42 Correct 14 ms 10232 KB Ok
43 Correct 15 ms 10360 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9720 KB Ok
4 Correct 10 ms 9720 KB Ok
5 Correct 9 ms 9592 KB Ok
6 Correct 10 ms 9720 KB Ok
7 Correct 10 ms 9720 KB Ok
8 Correct 9 ms 9720 KB Ok
9 Correct 9 ms 9720 KB Ok
10 Correct 9 ms 9720 KB Ok
11 Correct 10 ms 9720 KB Ok
12 Correct 10 ms 9720 KB Ok
13 Correct 10 ms 9720 KB Ok
14 Correct 10 ms 9720 KB Ok
15 Correct 10 ms 9720 KB Ok
16 Correct 10 ms 9720 KB Ok
17 Correct 10 ms 9720 KB Ok
18 Correct 10 ms 9980 KB Ok
19 Correct 16 ms 10872 KB Ok
20 Correct 12 ms 10232 KB Ok
21 Correct 19 ms 11128 KB Ok
22 Correct 15 ms 10488 KB Ok
23 Correct 10 ms 9720 KB Ok
24 Correct 10 ms 9720 KB Ok
25 Correct 10 ms 9748 KB Ok
26 Correct 9 ms 9720 KB Ok
27 Correct 10 ms 9720 KB Ok
28 Correct 10 ms 9720 KB Ok
29 Correct 10 ms 9720 KB Ok
30 Correct 9 ms 9720 KB Ok
31 Correct 10 ms 9720 KB Ok
32 Correct 9 ms 9724 KB Ok
33 Correct 10 ms 9720 KB Ok
34 Correct 11 ms 9976 KB Ok
35 Correct 11 ms 9956 KB Ok
36 Correct 13 ms 9948 KB Ok
37 Correct 11 ms 9848 KB Ok
38 Correct 12 ms 9848 KB Ok
39 Correct 12 ms 9848 KB Ok
40 Correct 12 ms 9848 KB Ok
41 Correct 11 ms 9848 KB Ok
42 Correct 11 ms 9848 KB Ok
43 Correct 11 ms 9848 KB Ok
44 Correct 13 ms 10104 KB Ok
45 Correct 13 ms 10232 KB Ok
46 Correct 14 ms 10360 KB Ok
47 Correct 13 ms 10232 KB Ok
48 Correct 15 ms 10232 KB Ok
49 Correct 14 ms 10104 KB Ok
50 Correct 15 ms 10232 KB Ok
51 Correct 14 ms 10232 KB Ok
52 Correct 14 ms 10232 KB Ok
53 Correct 15 ms 10360 KB Ok
54 Correct 84 ms 15260 KB Ok
55 Correct 91 ms 15392 KB Ok
56 Correct 84 ms 15600 KB Ok
57 Correct 61 ms 14580 KB Ok
58 Correct 72 ms 14964 KB Ok
59 Correct 65 ms 14604 KB Ok
60 Correct 61 ms 14384 KB Ok
61 Correct 64 ms 14836 KB Ok
62 Correct 79 ms 15200 KB Ok
63 Correct 69 ms 14748 KB Ok
64 Correct 85 ms 15456 KB Ok
65 Correct 78 ms 15088 KB Ok
66 Correct 65 ms 15048 KB Ok
67 Correct 59 ms 14900 KB Ok
68 Correct 65 ms 14956 KB Ok
69 Correct 208 ms 25520 KB Ok
70 Correct 278 ms 26992 KB Ok
71 Correct 204 ms 26224 KB Ok
72 Correct 206 ms 25712 KB Ok
73 Correct 228 ms 25580 KB Ok
74 Correct 187 ms 24788 KB Ok
75 Correct 202 ms 24692 KB Ok
76 Correct 208 ms 26252 KB Ok
77 Correct 204 ms 24044 KB Ok
78 Correct 192 ms 24968 KB Ok
79 Correct 193 ms 25968 KB Ok
80 Correct 192 ms 26352 KB Ok
81 Correct 215 ms 25200 KB Ok
82 Correct 198 ms 25940 KB Ok
83 Correct 182 ms 24560 KB Ok

Subtask #7
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9720 KB Ok
2 Correct 10 ms 9720 KB Ok
3 Correct 10 ms 9720 KB Ok
4 Correct 10 ms 9720 KB Ok
5 Correct 9 ms 9592 KB Ok
6 Correct 10 ms 9720 KB Ok
7 Correct 10 ms 9720 KB Ok
8 Correct 9 ms 9720 KB Ok
9 Correct 9 ms 9720 KB Ok
10 Correct 9 ms 9720 KB Ok
11 Correct 10 ms 9720 KB Ok
12 Correct 10 ms 9720 KB Ok
13 Correct 10 ms 9720 KB Ok
14 Correct 10 ms 9720 KB Ok
15 Correct 10 ms 9720 KB Ok
16 Correct 10 ms 9720 KB Ok
17 Correct 10 ms 9720 KB Ok
18 Correct 10 ms 9980 KB Ok
19 Correct 16 ms 10872 KB Ok
20 Correct 12 ms 10232 KB Ok
21 Correct 19 ms 11128 KB Ok
22 Correct 15 ms 10488 KB Ok
23 Correct 10 ms 9720 KB Ok
24 Correct 10 ms 9720 KB Ok
25 Correct 10 ms 9748 KB Ok
26 Correct 9 ms 9720 KB Ok
27 Correct 10 ms 9720 KB Ok
28 Correct 10 ms 9720 KB Ok
29 Correct 10 ms 9720 KB Ok
30 Correct 9 ms 9720 KB Ok
31 Correct 10 ms 9720 KB Ok
32 Correct 9 ms 9724 KB Ok
33 Correct 10 ms 9720 KB Ok
34 Correct 10 ms 9720 KB Ok
35 Correct 10 ms 9720 KB Ok
36 Correct 10 ms 9848 KB Ok
37 Correct 9 ms 9720 KB Ok
38 Correct 10 ms 9724 KB Ok
39 Correct 102 ms 24300 KB Ok
40 Correct 88 ms 29288 KB Ok
41 Correct 169 ms 33772 KB Ok
42 Correct 126 ms 31084 KB Ok
43 Correct 74 ms 19952 KB Ok
44 Correct 107 ms 26860 KB Ok
45 Correct 11 ms 9976 KB Ok
46 Correct 11 ms 9956 KB Ok
47 Correct 13 ms 9948 KB Ok
48 Correct 11 ms 9848 KB Ok
49 Correct 12 ms 9848 KB Ok
50 Correct 12 ms 9848 KB Ok
51 Correct 12 ms 9848 KB Ok
52 Correct 11 ms 9848 KB Ok
53 Correct 11 ms 9848 KB Ok
54 Correct 11 ms 9848 KB Ok
55 Correct 13 ms 10104 KB Ok
56 Correct 13 ms 10232 KB Ok
57 Correct 14 ms 10360 KB Ok
58 Correct 13 ms 10232 KB Ok
59 Correct 15 ms 10232 KB Ok
60 Correct 14 ms 10104 KB Ok
61 Correct 15 ms 10232 KB Ok
62 Correct 14 ms 10232 KB Ok
63 Correct 14 ms 10232 KB Ok
64 Correct 15 ms 10360 KB Ok
65 Correct 84 ms 15260 KB Ok
66 Correct 91 ms 15392 KB Ok
67 Correct 84 ms 15600 KB Ok
68 Correct 61 ms 14580 KB Ok
69 Correct 72 ms 14964 KB Ok
70 Correct 65 ms 14604 KB Ok
71 Correct 61 ms 14384 KB Ok
72 Correct 64 ms 14836 KB Ok
73 Correct 79 ms 15200 KB Ok
74 Correct 69 ms 14748 KB Ok
75 Correct 85 ms 15456 KB Ok
76 Correct 78 ms 15088 KB Ok
77 Correct 65 ms 15048 KB Ok
78 Correct 59 ms 14900 KB Ok
79 Correct 65 ms 14956 KB Ok
80 Correct 208 ms 25520 KB Ok
81 Correct 278 ms 26992 KB Ok
82 Correct 204 ms 26224 KB Ok
83 Correct 206 ms 25712 KB Ok
84 Correct 228 ms 25580 KB Ok
85 Correct 187 ms 24788 KB Ok
86 Correct 202 ms 24692 KB Ok
87 Correct 208 ms 26252 KB Ok
88 Correct 204 ms 24044 KB Ok
89 Correct 192 ms 24968 KB Ok
90 Correct 193 ms 25968 KB Ok
91 Correct 192 ms 26352 KB Ok
92 Correct 215 ms 25200 KB Ok
93 Correct 198 ms 25940 KB Ok
94 Correct 182 ms 24560 KB Ok
95 Correct 185 ms 23884 KB Ok
96 Correct 323 ms 30044 KB Ok
97 Correct 237 ms 26212 KB Ok
98 Correct 186 ms 26468 KB Ok
99 Correct 223 ms 26212 KB Ok
100 Correct 256 ms 25320 KB Ok
101 Correct 254 ms 28264 KB Ok
102 Correct 248 ms 26856 KB Ok
103 Correct 242 ms 27472 KB Ok
104 Correct 334 ms 29288 KB Ok
105 Correct 351 ms 29412 KB Ok
106 Correct 310 ms 30316 KB Ok
107 Correct 323 ms 28948 KB Ok
108 Correct 346 ms 29544 KB Ok
109 Correct 298 ms 31204 KB Ok
110 Correct 1254 ms 71968 KB Ok
111 Correct 1504 ms 76140 KB Ok
112 Correct 1356 ms 72808 KB Ok
113 Correct 1282 ms 74852 KB Ok
114 Correct 1447 ms 76920 KB Ok
115 Correct 1720 ms 72608 KB Ok
116 Correct 1147 ms 77196 KB Ok
117 Correct 1192 ms 73344 KB Ok
118 Correct 1302 ms 75092 KB Ok
119 Correct 1653 ms 73032 KB Ok
120 Correct 1676 ms 72708 KB Ok
121 Correct 1495 ms 72332 KB Ok
122 Correct 1284 ms 74376 KB Ok
123 Correct 1797 ms 75800 KB Ok
124 Correct 1563 ms 68328 KB Ok
125 Correct 425 ms 54588 KB Ok