oj.uz

Submission #281772

# Submission time Handle Problem Language Result Execution time Memory
281772 2020-08-23T12:58:15 Z hoanghq2004 Split the Attractions (IOI19_split) C++14
40 / 100
 155 ms 24568 KB 
#include <bits/stdc++.h>
#include "split.h"

using namespace std;
const int N = 100005;
int n;
pair <int, int> a, b, c;
vector <int> C, adj[N], E[N];
int sz[N], check[N];
int times, low[N], num[N];

void dfs(int u, int p)
{
    num[u] = low[u] = ++times;
    sz[u] = 1;
    check[u] = 1;
    for (auto v: adj[u])
    {
        if (v == p) continue;
        if (!num[v])
        {
            E[u].push_back(v);
            dfs(v, u);
            sz[u] += sz[v];
            low[u] = min(low[u], low[v]);
            if (sz[v] >= a.first) check[u] = 0;
        }
        else low[u] = min(low[u], num[v]);
    }
}


void paint(int u, int num, int cl)
{
    queue <int> q;
    q.push(u);
    int cnt = 0;
    if (!C[u])
    {
        C[u] = cl;
        cnt = 1;
    }
    if (cnt == num) return;
    while (!q.empty())
    {
        int u = q.front();
        q.pop();
        for (auto v: E[u])
            if (!C[v])
            {
                ++cnt;
                C[v] = cl;
                q.push(v);
                if (num == cnt) return;
            }
    }
}


vector <int> find_split(int _n, int _a, int _b, int _c, vector <int> u, vector <int> v)
{
    n = _n;
    a = {_a, 1}, b = {_b, 2}, c = {_c, 3};

    if (a > b) swap(a, b);
    if (a > c) swap(a, c);
    if (b > c) swap(b, c);

    assert(a <= b && b <= c);

    int m = (int)v.size();
    C = vector <int> (n, 0);

    for (int i = 0; i < m; i ++)
    {
        adj[v[i]].push_back(u[i]);
        adj[u[i]].push_back(v[i]);
    }
    dfs(0, 0);
    for (int u = 1; u < n; ++u)
    {
        if (check[u] && sz[u] >= a.first && n - sz[u] >= a.first)
        {
            if (sz[u] <= n - sz[u])
            {
                paint(u, a.first, a.second);
                paint(0, b.first, b.second);
            }
            else
            {
                paint(u, b.first, b.second);
                paint(0, a.first, a.second);
            }
            for (int i = 0; i < n; ++i)
                if (!C[i]) C[i] = c.second;
            return C;
        }
//        if (check[u] && n - sz[u] < a.first)
//        {
//            int cnt = 0;
//            for (auto v: E[u])
//                if (low[v] < num[u]) cnt += sz[v];
//            if (cnt + n - sz[u] < a.first) continue;
//
//            C[u] = b.second;
//            cnt = 1;
//            for (auto v: E[u])
//                if (low[v] >= num[u])
//                {
//                    paint(v, b.first - cnt, b.second);
//                    cnt += sz[v];
//                    if (sz[v] <= 0) break;
//                }
//            paint(0, a.first, a.first);
//            cnt = n - sz[u];
//            for (int i = 0; i < n; ++i)
//                if (!C[i] && low[i] < num[u])
//                {
//                    C[i] = a.second;
//                    ++cnt;
//                    if (cnt == a.first) break;
//                }
//            for (int i = 0; i < n; ++i)
//                if (!C[i]) C[i] = c.second;
//            return C;
//        }
    }
    return C;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB ok, correct split
2 Correct 4 ms 4992 KB ok, correct split
3 Correct 3 ms 4992 KB ok, correct split
4 Correct 4 ms 4992 KB ok, correct split
5 Correct 3 ms 4992 KB ok, correct split
6 Correct 3 ms 4992 KB ok, correct split
7 Correct 119 ms 24056 KB ok, correct split
8 Correct 121 ms 21496 KB ok, correct split
9 Correct 124 ms 20600 KB ok, correct split
10 Correct 117 ms 24568 KB ok, correct split
11 Correct 128 ms 24568 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB ok, correct split
2 Correct 3 ms 4992 KB ok, correct split
3 Correct 3 ms 4992 KB ok, correct split
4 Correct 141 ms 19576 KB ok, correct split
5 Correct 98 ms 13816 KB ok, correct split
6 Correct 129 ms 24568 KB ok, correct split
7 Correct 117 ms 21112 KB ok, correct split
8 Correct 155 ms 16376 KB ok, correct split
9 Correct 107 ms 15224 KB ok, correct split
10 Correct 69 ms 13040 KB ok, correct split
11 Correct 65 ms 13040 KB ok, correct split
12 Correct 65 ms 13040 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB ok, correct split
2 Correct 122 ms 13816 KB ok, correct split
3 Correct 34 ms 8952 KB ok, correct split
4 Correct 4 ms 4992 KB ok, correct split
5 Correct 120 ms 18772 KB ok, correct split
6 Correct 122 ms 18424 KB ok, correct split
7 Correct 113 ms 18296 KB ok, correct split
8 Correct 121 ms 19832 KB ok, correct split
9 Correct 117 ms 18040 KB ok, correct split
10 Correct 28 ms 8312 KB ok, no valid answer
11 Correct 44 ms 9860 KB ok, no valid answer
12 Correct 91 ms 13684 KB ok, no valid answer
13 Correct 99 ms 14200 KB ok, no valid answer
14 Correct 62 ms 13424 KB ok, no valid answer

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB ok, correct split
2 Correct 3 ms 4992 KB ok, no valid answer
3 Correct 4 ms 4992 KB ok, correct split
4 Correct 3 ms 4992 KB ok, correct split
5 Correct 5 ms 4992 KB ok, correct split
6 Correct 4 ms 4992 KB ok, correct split
7 Correct 4 ms 4992 KB ok, correct split
8 Correct 4 ms 4992 KB ok, correct split
9 Correct 8 ms 5376 KB ok, correct split
10 Correct 6 ms 5248 KB ok, correct split
11 Correct 4 ms 4992 KB ok, correct split
12 Correct 6 ms 5376 KB ok, correct split
13 Correct 4 ms 4992 KB ok, correct split
14 Correct 4 ms 4992 KB ok, correct split
15 Correct 4 ms 4992 KB ok, correct split
16 Correct 3 ms 4992 KB ok, correct split
17 Correct 4 ms 4992 KB ok, correct split
18 Correct 4 ms 4992 KB ok, correct split
19 Correct 4 ms 5120 KB ok, correct split
20 Correct 4 ms 5120 KB ok, correct split
21 Correct 6 ms 5376 KB ok, correct split
22 Correct 5 ms 5376 KB ok, correct split
23 Correct 5 ms 5376 KB ok, correct split
24 Correct 6 ms 5376 KB ok, correct split
25 Correct 6 ms 5376 KB ok, correct split
26 Incorrect 7 ms 5376 KB jury found a solution, contestant did not
27 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB ok, correct split
2 Correct 4 ms 4992 KB ok, correct split
3 Correct 3 ms 4992 KB ok, correct split
4 Correct 4 ms 4992 KB ok, correct split
5 Correct 3 ms 4992 KB ok, correct split
6 Correct 3 ms 4992 KB ok, correct split
7 Correct 119 ms 24056 KB ok, correct split
8 Correct 121 ms 21496 KB ok, correct split
9 Correct 124 ms 20600 KB ok, correct split
10 Correct 117 ms 24568 KB ok, correct split
11 Correct 128 ms 24568 KB ok, correct split
12 Correct 4 ms 4992 KB ok, correct split
13 Correct 3 ms 4992 KB ok, correct split
14 Correct 3 ms 4992 KB ok, correct split
15 Correct 141 ms 19576 KB ok, correct split
16 Correct 98 ms 13816 KB ok, correct split
17 Correct 129 ms 24568 KB ok, correct split
18 Correct 117 ms 21112 KB ok, correct split
19 Correct 155 ms 16376 KB ok, correct split
20 Correct 107 ms 15224 KB ok, correct split
21 Correct 69 ms 13040 KB ok, correct split
22 Correct 65 ms 13040 KB ok, correct split
23 Correct 65 ms 13040 KB ok, correct split
24 Correct 4 ms 4992 KB ok, correct split
25 Correct 122 ms 13816 KB ok, correct split
26 Correct 34 ms 8952 KB ok, correct split
27 Correct 4 ms 4992 KB ok, correct split
28 Correct 120 ms 18772 KB ok, correct split
29 Correct 122 ms 18424 KB ok, correct split
30 Correct 113 ms 18296 KB ok, correct split
31 Correct 121 ms 19832 KB ok, correct split
32 Correct 117 ms 18040 KB ok, correct split
33 Correct 28 ms 8312 KB ok, no valid answer
34 Correct 44 ms 9860 KB ok, no valid answer
35 Correct 91 ms 13684 KB ok, no valid answer
36 Correct 99 ms 14200 KB ok, no valid answer
37 Correct 62 ms 13424 KB ok, no valid answer
38 Correct 4 ms 4992 KB ok, correct split
39 Correct 3 ms 4992 KB ok, no valid answer
40 Correct 4 ms 4992 KB ok, correct split
41 Correct 3 ms 4992 KB ok, correct split
42 Correct 5 ms 4992 KB ok, correct split
43 Correct 4 ms 4992 KB ok, correct split
44 Correct 4 ms 4992 KB ok, correct split
45 Correct 4 ms 4992 KB ok, correct split
46 Correct 8 ms 5376 KB ok, correct split
47 Correct 6 ms 5248 KB ok, correct split
48 Correct 4 ms 4992 KB ok, correct split
49 Correct 6 ms 5376 KB ok, correct split
50 Correct 4 ms 4992 KB ok, correct split
51 Correct 4 ms 4992 KB ok, correct split
52 Correct 4 ms 4992 KB ok, correct split
53 Correct 3 ms 4992 KB ok, correct split
54 Correct 4 ms 4992 KB ok, correct split
55 Correct 4 ms 4992 KB ok, correct split
56 Correct 4 ms 5120 KB ok, correct split
57 Correct 4 ms 5120 KB ok, correct split
58 Correct 6 ms 5376 KB ok, correct split
59 Correct 5 ms 5376 KB ok, correct split
60 Correct 5 ms 5376 KB ok, correct split
61 Correct 6 ms 5376 KB ok, correct split
62 Correct 6 ms 5376 KB ok, correct split
63 Incorrect 7 ms 5376 KB jury found a solution, contestant did not
64 Halted 0 ms 0 KB -