oj.uz

Submission #220045

# Submission time Handle Problem Language Result Execution time Memory
220045 2020-04-06T21:04:52 Z VEGAnn Split the Attractions (IOI19_split) C++14
40 / 100
 147 ms 24696 KB 
#include <bits/stdc++.h>
#include "split.h"
#define all(x) x.begin(),x.end()
#define PB push_back
#define sz(x) ((int)x.size())
using namespace std;
typedef long long ll;
const int N = 100100;
vector<int> res;
vector<int> g[N], vc, children[N];
bool mrk[N];
int A[3], C[3], mrk_col[N], h[N], mn_h[N], pr[N], siz[N], mem = 0;

void dfs(int v, int p){
    pr[v] = p;
    siz[v] = 1;
    mrk[v] = 1;
    mn_h[v] = h[v];

    for (int u : g[v]){
        if (mrk[u]) continue;
        children[v].PB(u);
        h[u] = h[v] + 1;

        dfs(u, v);

        mn_h[v] = min(mn_h[v], mn_h[u]);
        siz[v] += siz[u];
    }
}

void col(int v, int cl){
    mrk_col[v] = cl;

    for (int u : children[v])
        col(u, cl);
}

void DFS(int v, int cl, int rlc){
    if (mrk[v]) return;
    if (mem == 0) return;

    mem--;
    mrk[v] = 1;
    res[v] = rlc;

    for (int u : g[v])
        if (mrk_col[u] == cl)
            DFS(u, cl, rlc);
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
	res.resize(n);
	fill(all(res), 0);

	for (int i = 0; i < sz(p); i++){
        g[p[i]].PB(q[i]);
        g[q[i]].PB(p[i]);
	}

	A[0] = a; A[1] = b; A[2] = c;
	C[0] = 1; C[1] = 2; C[2] = 3;

	if (A[0] > A[1]) {
        swap(A[0], A[1]);
        swap(C[0], C[1]);
	}
	if (A[1] > A[2]) {
        swap(A[1], A[2]);
        swap(C[1], C[2]);
	}
	if (A[0] > A[1]) {
        swap(A[0], A[1]);
        swap(C[0], C[1]);
	}

    dfs(0, -1);

    for (int v = 0; v < n; v++){
        bool ok = bool(siz[v] >= A[0]);

        for (int u : children[v])
            ok &= bool(siz[u] < A[0]);

        if (!ok) continue;

        col(0, 1);
        col(v, 2);

        int real_siz = siz[v];

        for (int u : children[v])
            if (mn_h[u] < h[v] && real_siz - siz[u] >= A[0]){
                real_siz -= siz[u];
                col(u, 1);
            }

        for (int t1 = 0; t1 < 2; t1++){
            int t2 = 1 - t1;

            if (real_siz >= A[t1] && n - real_siz >= A[t2]){
                fill(mrk, mrk + n, 0);

                mem = A[t2];
                DFS(pr[v], 1, C[t2]);

                mem = A[t1];
                DFS(v, 2, C[t1]);

                for (int &cr : res)
                    if (cr == 0)
                        cr = C[2];

                return res;
            }
        }
    }

	return res;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB ok, correct split
2 Correct 7 ms 4992 KB ok, correct split
3 Correct 7 ms 5120 KB ok, correct split
4 Correct 7 ms 4992 KB ok, correct split
5 Correct 7 ms 4992 KB ok, correct split
6 Correct 7 ms 4992 KB ok, correct split
7 Correct 118 ms 24312 KB ok, correct split
8 Correct 108 ms 22056 KB ok, correct split
9 Correct 119 ms 21368 KB ok, correct split
10 Correct 110 ms 24696 KB ok, correct split
11 Correct 121 ms 24696 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5120 KB ok, correct split
2 Correct 7 ms 4992 KB ok, correct split
3 Correct 7 ms 4992 KB ok, correct split
4 Correct 124 ms 21112 KB ok, correct split
5 Correct 99 ms 15480 KB ok, correct split
6 Correct 108 ms 24696 KB ok, correct split
7 Correct 116 ms 21880 KB ok, correct split
8 Correct 147 ms 19064 KB ok, correct split
9 Correct 105 ms 16888 KB ok, correct split
10 Correct 63 ms 14192 KB ok, correct split
11 Correct 62 ms 14192 KB ok, correct split
12 Correct 64 ms 14576 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB ok, correct split
2 Correct 104 ms 15480 KB ok, correct split
3 Correct 36 ms 9208 KB ok, correct split
4 Correct 7 ms 5096 KB ok, correct split
5 Correct 115 ms 19448 KB ok, correct split
6 Correct 124 ms 19324 KB ok, correct split
7 Correct 119 ms 19064 KB ok, correct split
8 Correct 116 ms 20344 KB ok, correct split
9 Correct 124 ms 18808 KB ok, correct split
10 Correct 31 ms 8440 KB ok, no valid answer
11 Correct 44 ms 10232 KB ok, no valid answer
12 Correct 77 ms 14836 KB ok, no valid answer
13 Correct 96 ms 15352 KB ok, no valid answer
14 Correct 62 ms 14704 KB ok, no valid answer

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB ok, correct split
2 Correct 7 ms 4992 KB ok, no valid answer
3 Correct 7 ms 5024 KB ok, correct split
4 Correct 7 ms 4992 KB ok, correct split
5 Correct 7 ms 4992 KB ok, correct split
6 Correct 7 ms 4992 KB ok, correct split
7 Correct 7 ms 4992 KB ok, correct split
8 Correct 7 ms 4992 KB ok, correct split
9 Correct 10 ms 5376 KB ok, correct split
10 Correct 9 ms 5376 KB ok, correct split
11 Correct 7 ms 5120 KB ok, correct split
12 Correct 9 ms 5376 KB ok, correct split
13 Correct 7 ms 4992 KB ok, correct split
14 Correct 7 ms 4992 KB ok, correct split
15 Correct 7 ms 4992 KB ok, correct split
16 Correct 7 ms 4992 KB ok, correct split
17 Correct 7 ms 4992 KB ok, correct split
18 Correct 7 ms 4992 KB ok, correct split
19 Correct 7 ms 5120 KB ok, correct split
20 Correct 10 ms 5376 KB ok, correct split
21 Correct 9 ms 5504 KB ok, correct split
22 Correct 9 ms 5376 KB ok, correct split
23 Correct 9 ms 5504 KB ok, correct split
24 Correct 9 ms 5504 KB ok, correct split
25 Correct 9 ms 5376 KB ok, correct split
26 Incorrect 11 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 7 ms 4992 KB ok, correct split
2 Correct 7 ms 4992 KB ok, correct split
3 Correct 7 ms 5120 KB ok, correct split
4 Correct 7 ms 4992 KB ok, correct split
5 Correct 7 ms 4992 KB ok, correct split
6 Correct 7 ms 4992 KB ok, correct split
7 Correct 118 ms 24312 KB ok, correct split
8 Correct 108 ms 22056 KB ok, correct split
9 Correct 119 ms 21368 KB ok, correct split
10 Correct 110 ms 24696 KB ok, correct split
11 Correct 121 ms 24696 KB ok, correct split
12 Correct 7 ms 5120 KB ok, correct split
13 Correct 7 ms 4992 KB ok, correct split
14 Correct 7 ms 4992 KB ok, correct split
15 Correct 124 ms 21112 KB ok, correct split
16 Correct 99 ms 15480 KB ok, correct split
17 Correct 108 ms 24696 KB ok, correct split
18 Correct 116 ms 21880 KB ok, correct split
19 Correct 147 ms 19064 KB ok, correct split
20 Correct 105 ms 16888 KB ok, correct split
21 Correct 63 ms 14192 KB ok, correct split
22 Correct 62 ms 14192 KB ok, correct split
23 Correct 64 ms 14576 KB ok, correct split
24 Correct 7 ms 4992 KB ok, correct split
25 Correct 104 ms 15480 KB ok, correct split
26 Correct 36 ms 9208 KB ok, correct split
27 Correct 7 ms 5096 KB ok, correct split
28 Correct 115 ms 19448 KB ok, correct split
29 Correct 124 ms 19324 KB ok, correct split
30 Correct 119 ms 19064 KB ok, correct split
31 Correct 116 ms 20344 KB ok, correct split
32 Correct 124 ms 18808 KB ok, correct split
33 Correct 31 ms 8440 KB ok, no valid answer
34 Correct 44 ms 10232 KB ok, no valid answer
35 Correct 77 ms 14836 KB ok, no valid answer
36 Correct 96 ms 15352 KB ok, no valid answer
37 Correct 62 ms 14704 KB ok, no valid answer
38 Correct 7 ms 4992 KB ok, correct split
39 Correct 7 ms 4992 KB ok, no valid answer
40 Correct 7 ms 5024 KB ok, correct split
41 Correct 7 ms 4992 KB ok, correct split
42 Correct 7 ms 4992 KB ok, correct split
43 Correct 7 ms 4992 KB ok, correct split
44 Correct 7 ms 4992 KB ok, correct split
45 Correct 7 ms 4992 KB ok, correct split
46 Correct 10 ms 5376 KB ok, correct split
47 Correct 9 ms 5376 KB ok, correct split
48 Correct 7 ms 5120 KB ok, correct split
49 Correct 9 ms 5376 KB ok, correct split
50 Correct 7 ms 4992 KB ok, correct split
51 Correct 7 ms 4992 KB ok, correct split
52 Correct 7 ms 4992 KB ok, correct split
53 Correct 7 ms 4992 KB ok, correct split
54 Correct 7 ms 4992 KB ok, correct split
55 Correct 7 ms 4992 KB ok, correct split
56 Correct 7 ms 5120 KB ok, correct split
57 Correct 10 ms 5376 KB ok, correct split
58 Correct 9 ms 5504 KB ok, correct split
59 Correct 9 ms 5376 KB ok, correct split
60 Correct 9 ms 5504 KB ok, correct split
61 Correct 9 ms 5504 KB ok, correct split
62 Correct 9 ms 5376 KB ok, correct split
63 Incorrect 11 ms 5376 KB jury found a solution, contestant did not
64 Halted 0 ms 0 KB -