oj.uz

Submission #173815

# Submission time Handle Problem Language Result Execution time Memory
173815 2020-01-05T13:12:54 Z davitmarg Nice sequence (IZhO18_sequence) C++17
76 / 100
 2000 ms 71044 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];

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 23 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 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 28 ms 23800 KB Ok
9 Correct 23 ms 23800 KB Ok
10 Correct 28 ms 23800 KB Ok
11 Correct 27 ms 23800 KB Ok
12 Correct 28 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 23 ms 23800 KB Ok
3 Correct 22 ms 23800 KB Ok
4 Correct 22 ms 23800 KB Ok
5 Correct 23 ms 23800 KB Ok
6 Correct 24 ms 24056 KB Ok
7 Correct 33 ms 24700 KB Ok
8 Correct 28 ms 24184 KB Ok
9 Correct 35 ms 24824 KB Ok
10 Correct 29 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 23844 KB Ok
3 Correct 23 ms 23928 KB Ok
4 Correct 23 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 23 ms 23800 KB Ok
9 Correct 23 ms 23800 KB Ok
10 Correct 23 ms 23856 KB Ok
11 Correct 22 ms 23800 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 23800 KB Ok
2 Correct 23 ms 23800 KB Ok
3 Correct 23 ms 23788 KB Ok
4 Correct 23 ms 23800 KB Ok
5 Correct 23 ms 23804 KB Ok
6 Correct 123 ms 38580 KB Ok
7 Correct 103 ms 39020 KB Ok
8 Correct 172 ms 41528 KB Ok
9 Correct 170 ms 38384 KB Ok
10 Correct 88 ms 33432 KB Ok
11 Correct 155 ms 41960 KB Ok

Subtask #5
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 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 28 ms 23800 KB Ok
9 Correct 23 ms 23800 KB Ok
10 Correct 28 ms 23800 KB Ok
11 Correct 27 ms 23800 KB Ok
12 Correct 28 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 23 ms 23844 KB Ok
15 Correct 23 ms 23928 KB Ok
16 Correct 23 ms 23800 KB Ok
17 Correct 23 ms 23800 KB Ok
18 Correct 23 ms 23800 KB Ok
19 Correct 23 ms 23800 KB Ok
20 Correct 23 ms 23800 KB Ok
21 Correct 23 ms 23800 KB Ok
22 Correct 23 ms 23856 KB Ok
23 Correct 22 ms 23800 KB Ok
24 Correct 24 ms 23928 KB Ok
25 Correct 25 ms 24056 KB Ok
26 Correct 27 ms 24056 KB Ok
27 Correct 25 ms 24056 KB Ok
28 Correct 24 ms 24056 KB Ok
29 Correct 24 ms 23908 KB Ok
30 Correct 24 ms 23928 KB Ok
31 Correct 24 ms 24056 KB Ok
32 Correct 24 ms 24056 KB Ok
33 Correct 24 ms 24056 KB Ok
34 Correct 28 ms 24184 KB Ok
35 Correct 28 ms 24312 KB Ok
36 Correct 28 ms 24184 KB Ok
37 Correct 28 ms 24312 KB Ok
38 Correct 28 ms 24184 KB Ok
39 Correct 27 ms 24184 KB Ok
40 Correct 27 ms 24312 KB Ok
41 Correct 28 ms 24184 KB Ok
42 Correct 27 ms 24184 KB Ok
43 Correct 28 ms 24312 KB Ok

Subtask #6
18.0 / 18.0

# 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 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 28 ms 23800 KB Ok
9 Correct 23 ms 23800 KB Ok
10 Correct 28 ms 23800 KB Ok
11 Correct 27 ms 23800 KB Ok
12 Correct 28 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 23 ms 23800 KB Ok
15 Correct 22 ms 23800 KB Ok
16 Correct 22 ms 23800 KB Ok
17 Correct 23 ms 23800 KB Ok
18 Correct 24 ms 24056 KB Ok
19 Correct 33 ms 24700 KB Ok
20 Correct 28 ms 24184 KB Ok
21 Correct 35 ms 24824 KB Ok
22 Correct 29 ms 24440 KB Ok
23 Correct 23 ms 23800 KB Ok
24 Correct 23 ms 23844 KB Ok
25 Correct 23 ms 23928 KB Ok
26 Correct 23 ms 23800 KB Ok
27 Correct 23 ms 23800 KB Ok
28 Correct 23 ms 23800 KB Ok
29 Correct 23 ms 23800 KB Ok
30 Correct 23 ms 23800 KB Ok
31 Correct 23 ms 23800 KB Ok
32 Correct 23 ms 23856 KB Ok
33 Correct 22 ms 23800 KB Ok
34 Correct 24 ms 23928 KB Ok
35 Correct 25 ms 24056 KB Ok
36 Correct 27 ms 24056 KB Ok
37 Correct 25 ms 24056 KB Ok
38 Correct 24 ms 24056 KB Ok
39 Correct 24 ms 23908 KB Ok
40 Correct 24 ms 23928 KB Ok
41 Correct 24 ms 24056 KB Ok
42 Correct 24 ms 24056 KB Ok
43 Correct 24 ms 24056 KB Ok
44 Correct 28 ms 24184 KB Ok
45 Correct 28 ms 24312 KB Ok
46 Correct 28 ms 24184 KB Ok
47 Correct 28 ms 24312 KB Ok
48 Correct 28 ms 24184 KB Ok
49 Correct 27 ms 24184 KB Ok
50 Correct 27 ms 24312 KB Ok
51 Correct 28 ms 24184 KB Ok
52 Correct 27 ms 24184 KB Ok
53 Correct 28 ms 24312 KB Ok
54 Correct 76 ms 29300 KB Ok
55 Correct 86 ms 29300 KB Ok
56 Correct 82 ms 29420 KB Ok
57 Correct 70 ms 28784 KB Ok
58 Correct 84 ms 29108 KB Ok
59 Correct 85 ms 28912 KB Ok
60 Correct 72 ms 28660 KB Ok
61 Correct 70 ms 29040 KB Ok
62 Correct 99 ms 29428 KB Ok
63 Correct 78 ms 28656 KB Ok
64 Correct 91 ms 29304 KB Ok
65 Correct 84 ms 29296 KB Ok
66 Correct 75 ms 29036 KB Ok
67 Correct 68 ms 28908 KB Ok
68 Correct 83 ms 29172 KB Ok
69 Correct 335 ms 36596 KB Ok
70 Correct 334 ms 37524 KB Ok
71 Correct 450 ms 34224 KB Ok
72 Correct 275 ms 37092 KB Ok
73 Correct 275 ms 34800 KB Ok
74 Correct 270 ms 34672 KB Ok
75 Correct 262 ms 35188 KB Ok
76 Correct 305 ms 37488 KB Ok
77 Correct 253 ms 34032 KB Ok
78 Correct 299 ms 37592 KB Ok
79 Correct 290 ms 35828 KB Ok
80 Correct 274 ms 35020 KB Ok
81 Correct 337 ms 36740 KB Ok
82 Correct 279 ms 35828 KB Ok
83 Correct 259 ms 35316 KB Ok

Subtask #7
0 / 24.0

# 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 23800 KB Ok
6 Correct 23 ms 23800 KB Ok
7 Correct 23 ms 23800 KB Ok
8 Correct 28 ms 23800 KB Ok
9 Correct 23 ms 23800 KB Ok
10 Correct 28 ms 23800 KB Ok
11 Correct 27 ms 23800 KB Ok
12 Correct 28 ms 23800 KB Ok
13 Correct 23 ms 23800 KB Ok
14 Correct 23 ms 23800 KB Ok
15 Correct 22 ms 23800 KB Ok
16 Correct 22 ms 23800 KB Ok
17 Correct 23 ms 23800 KB Ok
18 Correct 24 ms 24056 KB Ok
19 Correct 33 ms 24700 KB Ok
20 Correct 28 ms 24184 KB Ok
21 Correct 35 ms 24824 KB Ok
22 Correct 29 ms 24440 KB Ok
23 Correct 23 ms 23800 KB Ok
24 Correct 23 ms 23844 KB Ok
25 Correct 23 ms 23928 KB Ok
26 Correct 23 ms 23800 KB Ok
27 Correct 23 ms 23800 KB Ok
28 Correct 23 ms 23800 KB Ok
29 Correct 23 ms 23800 KB Ok
30 Correct 23 ms 23800 KB Ok
31 Correct 23 ms 23800 KB Ok
32 Correct 23 ms 23856 KB Ok
33 Correct 22 ms 23800 KB Ok
34 Correct 22 ms 23800 KB Ok
35 Correct 23 ms 23800 KB Ok
36 Correct 23 ms 23788 KB Ok
37 Correct 23 ms 23800 KB Ok
38 Correct 23 ms 23804 KB Ok
39 Correct 123 ms 38580 KB Ok
40 Correct 103 ms 39020 KB Ok
41 Correct 172 ms 41528 KB Ok
42 Correct 170 ms 38384 KB Ok
43 Correct 88 ms 33432 KB Ok
44 Correct 155 ms 41960 KB Ok
45 Correct 24 ms 23928 KB Ok
46 Correct 25 ms 24056 KB Ok
47 Correct 27 ms 24056 KB Ok
48 Correct 25 ms 24056 KB Ok
49 Correct 24 ms 24056 KB Ok
50 Correct 24 ms 23908 KB Ok
51 Correct 24 ms 23928 KB Ok
52 Correct 24 ms 24056 KB Ok
53 Correct 24 ms 24056 KB Ok
54 Correct 24 ms 24056 KB Ok
55 Correct 28 ms 24184 KB Ok
56 Correct 28 ms 24312 KB Ok
57 Correct 28 ms 24184 KB Ok
58 Correct 28 ms 24312 KB Ok
59 Correct 28 ms 24184 KB Ok
60 Correct 27 ms 24184 KB Ok
61 Correct 27 ms 24312 KB Ok
62 Correct 28 ms 24184 KB Ok
63 Correct 27 ms 24184 KB Ok
64 Correct 28 ms 24312 KB Ok
65 Correct 76 ms 29300 KB Ok
66 Correct 86 ms 29300 KB Ok
67 Correct 82 ms 29420 KB Ok
68 Correct 70 ms 28784 KB Ok
69 Correct 84 ms 29108 KB Ok
70 Correct 85 ms 28912 KB Ok
71 Correct 72 ms 28660 KB Ok
72 Correct 70 ms 29040 KB Ok
73 Correct 99 ms 29428 KB Ok
74 Correct 78 ms 28656 KB Ok
75 Correct 91 ms 29304 KB Ok
76 Correct 84 ms 29296 KB Ok
77 Correct 75 ms 29036 KB Ok
78 Correct 68 ms 28908 KB Ok
79 Correct 83 ms 29172 KB Ok
80 Correct 335 ms 36596 KB Ok
81 Correct 334 ms 37524 KB Ok
82 Correct 450 ms 34224 KB Ok
83 Correct 275 ms 37092 KB Ok
84 Correct 275 ms 34800 KB Ok
85 Correct 270 ms 34672 KB Ok
86 Correct 262 ms 35188 KB Ok
87 Correct 305 ms 37488 KB Ok
88 Correct 253 ms 34032 KB Ok
89 Correct 299 ms 37592 KB Ok
90 Correct 290 ms 35828 KB Ok
91 Correct 274 ms 35020 KB Ok
92 Correct 337 ms 36740 KB Ok
93 Correct 279 ms 35828 KB Ok
94 Correct 259 ms 35316 KB Ok
95 Correct 194 ms 37716 KB Ok
96 Correct 342 ms 44152 KB Ok
97 Correct 298 ms 40832 KB Ok
98 Correct 210 ms 40932 KB Ok
99 Correct 204 ms 40584 KB Ok
100 Correct 293 ms 39780 KB Ok
101 Correct 224 ms 42952 KB Ok
102 Correct 274 ms 40676 KB Ok
103 Correct 279 ms 41700 KB Ok
104 Correct 295 ms 43108 KB Ok
105 Correct 341 ms 43652 KB Ok
106 Correct 264 ms 43732 KB Ok
107 Correct 302 ms 43108 KB Ok
108 Correct 429 ms 43648 KB Ok
109 Correct 305 ms 44756 KB Ok
110 Execution timed out 2043 ms 71044 KB Time limit exceeded
111 Halted 0 ms 0 KB -