oj.uz

Submission #173808

# Submission time Handle Problem Language Result Execution time Memory
173808 2020-01-05T13:05:32 Z davitmarg Nice sequence (IZhO18_sequence) C++17
76 / 100
 2000 ms 66064 KB 
/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(), v.end()
using namespace std;

const int N = 5 * 200005;

int gcd(int a, int b)
{
    if (!a || !b)
        return a + b;
    return gcd(b, a % b);
}

LL lca(LL a, LL b)
{
    return a * b / gcd(a, b);
}

int q, n, m, k, a[N], used[N], tin[N];
vector<int> t, g[N];

inline void dfs(int v)
{
    used[v] = 1;
    for (int i = 0; i < g[v].size(); i++)
    {
        int to = g[v][i];
        if (used[to])
            continue;
        dfs(to);
    }
    //tin[v] = -t.size();
    t.PB(v);
}

bool check(int x)
{
    t.clear();
    for (int i = 0; i <= x; i++)
    {
        g[i].clear();
        used[i] = 0;
        a[i] = i;
    }

    for (int i = 0; i <= x; i++)
    {
        if (i - m >= 0)
            g[i - m].PB(i);
        if (i + n <= x)
            g[i + n].PB(i);
    }
    for (int i = 0; i <= x; i++)
        if (!used[i])
            dfs(i);
    //cout << "!!!!!" << x << endl;
    int v, to;
    for (int i = t.size() - 1; i >= 0; i--)
    {
        v = t[i];
        for (int j = 0; j < g[v].size(); j++)
        {
            to = g[v][j];
            // if (tin[to] <= tin[v])
            //     return 0;
            //cout << v << " : " << to << endl;
            a[to] = max(a[to], a[v] + 1);
        }
    }
    return 1;
}

char uu[12];
void tp(int x)
{
    if (x == 0)
    {
        putchar('0');
        return;
    }
    if (x < 0)
    {
        putchar('-');
        x *= (-1);
    }
    int i = 0;
    while (x)
    {
        uu[i++] = (x % 10) + '0';
        x /= 10;
    }
    for (i = i - 1; i >= 0; --i)
        putchar(uu[i]);
}

int main()
{
    cin >> q;
    while (q--)
    {
        k = 0;
        cin >> n >> m;
        LL l, r, mid;
        l = 0;
        r = min(lca(n, m) - 1ll, 400000ll);
        // while (l <= r)
        // {
        //     mid = (l + r) / 2;
        //     if (check(mid))
        //     {
        //         k = mid;
        //         l = mid + 1;
        //     }
        //     else
        //         r = mid - 1;
        // }
        k = n + m - gcd(n, m) - 1;
        check(k);
        tp(k);
        putchar('\n');
        for (int i = 1; i <= k; i++)
        {
            //printf("%d ", a[i] - a[i - 1]);
            tp(a[i] - a[i - 1]);
            putchar(' ');
        }
        putchar('\n');
    }
    return 0;
}

/*
 
4
3 1
2 3
1 1
2 2
 
 
*/

Compilation message

sequence.cpp: In function 'void dfs(int)':
sequence.cpp:46:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < g[v].size(); i++)
                     ~~^~~~~~~~~~~~~
sequence.cpp: In function 'bool check(int)':
sequence.cpp:82:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < g[v].size(); j++)
                         ~~^~~~~~~~~~~~~
sequence.cpp: In function 'int main()':
sequence.cpp:124:12: warning: variable 'l' set but not used [-Wunused-but-set-variable]
         LL l, r, mid;
            ^
sequence.cpp:124:15: warning: variable 'r' set but not used [-Wunused-but-set-variable]
         LL l, r, mid;
               ^
sequence.cpp:124:18: warning: unused variable 'mid' [-Wunused-variable]
         LL l, r, mid;
                  ^~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 24 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 24 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 24 ms 23800 KB Ok
9 Correct 24 ms 23876 KB Ok
10 Correct 24 ms 23800 KB Ok
11 Correct 23 ms 23800 KB Ok
12 Correct 23 ms 23800 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 20 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 23 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 25 ms 23928 KB Ok
7 Correct 34 ms 24696 KB Ok
8 Correct 28 ms 24184 KB Ok
9 Correct 35 ms 24772 KB Ok
10 Correct 30 ms 24440 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 23 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 23 ms 23800 KB Ok
5 Correct 23 ms 23772 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 24 ms 23800 KB Ok
8 Correct 23 ms 23800 KB Ok
9 Correct 23 ms 23772 KB Ok
10 Correct 23 ms 23800 KB Ok
11 Correct 24 ms 23804 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 24 ms 23800 KB Ok
3 Correct 24 ms 23772 KB Ok
4 Correct 24 ms 23800 KB Ok
5 Correct 24 ms 23800 KB Ok
6 Correct 120 ms 36720 KB Ok
7 Correct 102 ms 37232 KB Ok
8 Correct 177 ms 39404 KB Ok
9 Correct 169 ms 37232 KB Ok
10 Correct 86 ms 32368 KB Ok
11 Correct 150 ms 39500 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 24 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 24 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 24 ms 23800 KB Ok
9 Correct 24 ms 23876 KB Ok
10 Correct 24 ms 23800 KB Ok
11 Correct 23 ms 23800 KB Ok
12 Correct 23 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 23 ms 23800 KB Ok
15 Correct 23 ms 23800 KB Ok
16 Correct 23 ms 23800 KB Ok
17 Correct 23 ms 23772 KB Ok
18 Correct 23 ms 23800 KB Ok
19 Correct 24 ms 23800 KB Ok
20 Correct 23 ms 23800 KB Ok
21 Correct 23 ms 23772 KB Ok
22 Correct 23 ms 23800 KB Ok
23 Correct 24 ms 23804 KB Ok
24 Correct 25 ms 23928 KB Ok
25 Correct 25 ms 23928 KB Ok
26 Correct 25 ms 23972 KB Ok
27 Correct 25 ms 23928 KB Ok
28 Correct 24 ms 23928 KB Ok
29 Correct 24 ms 23928 KB Ok
30 Correct 26 ms 24056 KB Ok
31 Correct 25 ms 23928 KB Ok
32 Correct 25 ms 23928 KB Ok
33 Correct 24 ms 23928 KB Ok
34 Correct 28 ms 24116 KB Ok
35 Correct 33 ms 24312 KB Ok
36 Correct 33 ms 24156 KB Ok
37 Correct 28 ms 24184 KB Ok
38 Correct 28 ms 24184 KB Ok
39 Correct 28 ms 24184 KB Ok
40 Correct 28 ms 24184 KB Ok
41 Correct 34 ms 24184 KB Ok
42 Correct 33 ms 24184 KB Ok
43 Correct 28 ms 24184 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 24 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 24 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 24 ms 23800 KB Ok
9 Correct 24 ms 23876 KB Ok
10 Correct 24 ms 23800 KB Ok
11 Correct 23 ms 23800 KB Ok
12 Correct 23 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 20 ms 23800 KB Ok
15 Correct 23 ms 23800 KB Ok
16 Correct 23 ms 23800 KB Ok
17 Correct 23 ms 23800 KB Ok
18 Correct 25 ms 23928 KB Ok
19 Correct 34 ms 24696 KB Ok
20 Correct 28 ms 24184 KB Ok
21 Correct 35 ms 24772 KB Ok
22 Correct 30 ms 24440 KB Ok
23 Correct 23 ms 23800 KB Ok
24 Correct 23 ms 23800 KB Ok
25 Correct 23 ms 23800 KB Ok
26 Correct 23 ms 23800 KB Ok
27 Correct 23 ms 23772 KB Ok
28 Correct 23 ms 23800 KB Ok
29 Correct 24 ms 23800 KB Ok
30 Correct 23 ms 23800 KB Ok
31 Correct 23 ms 23772 KB Ok
32 Correct 23 ms 23800 KB Ok
33 Correct 24 ms 23804 KB Ok
34 Correct 25 ms 23928 KB Ok
35 Correct 25 ms 23928 KB Ok
36 Correct 25 ms 23972 KB Ok
37 Correct 25 ms 23928 KB Ok
38 Correct 24 ms 23928 KB Ok
39 Correct 24 ms 23928 KB Ok
40 Correct 26 ms 24056 KB Ok
41 Correct 25 ms 23928 KB Ok
42 Correct 25 ms 23928 KB Ok
43 Correct 24 ms 23928 KB Ok
44 Correct 28 ms 24116 KB Ok
45 Correct 33 ms 24312 KB Ok
46 Correct 33 ms 24156 KB Ok
47 Correct 28 ms 24184 KB Ok
48 Correct 28 ms 24184 KB Ok
49 Correct 28 ms 24184 KB Ok
50 Correct 28 ms 24184 KB Ok
51 Correct 34 ms 24184 KB Ok
52 Correct 33 ms 24184 KB Ok
53 Correct 28 ms 24184 KB Ok
54 Correct 78 ms 29188 KB Ok
55 Correct 86 ms 29300 KB Ok
56 Correct 83 ms 29424 KB Ok
57 Correct 73 ms 28656 KB Ok
58 Correct 92 ms 29168 KB Ok
59 Correct 86 ms 28908 KB Ok
60 Correct 79 ms 28500 KB Ok
61 Correct 70 ms 29040 KB Ok
62 Correct 98 ms 29456 KB Ok
63 Correct 77 ms 28656 KB Ok
64 Correct 91 ms 29296 KB Ok
65 Correct 115 ms 29296 KB Ok
66 Correct 72 ms 29168 KB Ok
67 Correct 72 ms 28912 KB Ok
68 Correct 89 ms 29188 KB Ok
69 Correct 303 ms 35372 KB Ok
70 Correct 369 ms 36544 KB Ok
71 Correct 279 ms 33524 KB Ok
72 Correct 314 ms 35828 KB Ok
73 Correct 278 ms 34212 KB Ok
74 Correct 314 ms 33812 KB Ok
75 Correct 258 ms 33908 KB Ok
76 Correct 319 ms 36212 KB Ok
77 Correct 262 ms 33104 KB Ok
78 Correct 302 ms 36084 KB Ok
79 Correct 316 ms 35040 KB Ok
80 Correct 302 ms 34496 KB Ok
81 Correct 305 ms 35696 KB Ok
82 Correct 364 ms 34952 KB Ok
83 Correct 284 ms 34388 KB Ok

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 23800 KB Ok
2 Correct 24 ms 23800 KB Ok
3 Correct 23 ms 23800 KB Ok
4 Correct 24 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 24 ms 23800 KB Ok
9 Correct 24 ms 23876 KB Ok
10 Correct 24 ms 23800 KB Ok
11 Correct 23 ms 23800 KB Ok
12 Correct 23 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 20 ms 23800 KB Ok
15 Correct 23 ms 23800 KB Ok
16 Correct 23 ms 23800 KB Ok
17 Correct 23 ms 23800 KB Ok
18 Correct 25 ms 23928 KB Ok
19 Correct 34 ms 24696 KB Ok
20 Correct 28 ms 24184 KB Ok
21 Correct 35 ms 24772 KB Ok
22 Correct 30 ms 24440 KB Ok
23 Correct 23 ms 23800 KB Ok
24 Correct 23 ms 23800 KB Ok
25 Correct 23 ms 23800 KB Ok
26 Correct 23 ms 23800 KB Ok
27 Correct 23 ms 23772 KB Ok
28 Correct 23 ms 23800 KB Ok
29 Correct 24 ms 23800 KB Ok
30 Correct 23 ms 23800 KB Ok
31 Correct 23 ms 23772 KB Ok
32 Correct 23 ms 23800 KB Ok
33 Correct 24 ms 23804 KB Ok
34 Correct 23 ms 23800 KB Ok
35 Correct 24 ms 23800 KB Ok
36 Correct 24 ms 23772 KB Ok
37 Correct 24 ms 23800 KB Ok
38 Correct 24 ms 23800 KB Ok
39 Correct 120 ms 36720 KB Ok
40 Correct 102 ms 37232 KB Ok
41 Correct 177 ms 39404 KB Ok
42 Correct 169 ms 37232 KB Ok
43 Correct 86 ms 32368 KB Ok
44 Correct 150 ms 39500 KB Ok
45 Correct 25 ms 23928 KB Ok
46 Correct 25 ms 23928 KB Ok
47 Correct 25 ms 23972 KB Ok
48 Correct 25 ms 23928 KB Ok
49 Correct 24 ms 23928 KB Ok
50 Correct 24 ms 23928 KB Ok
51 Correct 26 ms 24056 KB Ok
52 Correct 25 ms 23928 KB Ok
53 Correct 25 ms 23928 KB Ok
54 Correct 24 ms 23928 KB Ok
55 Correct 28 ms 24116 KB Ok
56 Correct 33 ms 24312 KB Ok
57 Correct 33 ms 24156 KB Ok
58 Correct 28 ms 24184 KB Ok
59 Correct 28 ms 24184 KB Ok
60 Correct 28 ms 24184 KB Ok
61 Correct 28 ms 24184 KB Ok
62 Correct 34 ms 24184 KB Ok
63 Correct 33 ms 24184 KB Ok
64 Correct 28 ms 24184 KB Ok
65 Correct 78 ms 29188 KB Ok
66 Correct 86 ms 29300 KB Ok
67 Correct 83 ms 29424 KB Ok
68 Correct 73 ms 28656 KB Ok
69 Correct 92 ms 29168 KB Ok
70 Correct 86 ms 28908 KB Ok
71 Correct 79 ms 28500 KB Ok
72 Correct 70 ms 29040 KB Ok
73 Correct 98 ms 29456 KB Ok
74 Correct 77 ms 28656 KB Ok
75 Correct 91 ms 29296 KB Ok
76 Correct 115 ms 29296 KB Ok
77 Correct 72 ms 29168 KB Ok
78 Correct 72 ms 28912 KB Ok
79 Correct 89 ms 29188 KB Ok
80 Correct 303 ms 35372 KB Ok
81 Correct 369 ms 36544 KB Ok
82 Correct 279 ms 33524 KB Ok
83 Correct 314 ms 35828 KB Ok
84 Correct 278 ms 34212 KB Ok
85 Correct 314 ms 33812 KB Ok
86 Correct 258 ms 33908 KB Ok
87 Correct 319 ms 36212 KB Ok
88 Correct 262 ms 33104 KB Ok
89 Correct 302 ms 36084 KB Ok
90 Correct 316 ms 35040 KB Ok
91 Correct 302 ms 34496 KB Ok
92 Correct 305 ms 35696 KB Ok
93 Correct 364 ms 34952 KB Ok
94 Correct 284 ms 34388 KB Ok
95 Correct 190 ms 37636 KB Ok
96 Correct 334 ms 44004 KB Ok
97 Correct 301 ms 40548 KB Ok
98 Correct 216 ms 40836 KB Ok
99 Correct 202 ms 40552 KB Ok
100 Correct 280 ms 39872 KB Ok
101 Correct 220 ms 42852 KB Ok
102 Correct 279 ms 40604 KB Ok
103 Correct 281 ms 41704 KB Ok
104 Correct 296 ms 43244 KB Ok
105 Correct 332 ms 43852 KB Ok
106 Correct 257 ms 43636 KB Ok
107 Correct 343 ms 43068 KB Ok
108 Correct 366 ms 43492 KB Ok
109 Correct 300 ms 44764 KB Ok
110 Execution timed out 2024 ms 66064 KB Time limit exceeded
111 Halted 0 ms 0 KB -