oj.uz

Submission #408953

# Submission time Handle Problem Language Result Execution time Memory
408953 2021-05-19T21:59:21 Z Tc14 Split the Attractions (IOI19_split) C++17
100 / 100
 134 ms 24880 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include "split.h"
using namespace std;
#define ve vector
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 1e9 + 10;

int n, cnt;
bool found, sol;
pii x, y, z;
tuple<int, int, int> bottom, top;
ve<int> Num, Low, Size;
ve<bool> B;
ve<ve<int>> G, C;

void dfs(int u, int p) {

    cnt++;
    Num[u] = cnt;
    Low[u] = cnt;

    Size[u] = 1;
    bool valid = true;

    for (int v : G[u]) {
        if (Num[v] == 0) {
            dfs(v, u);
            Low[u] = min(Low[u], Low[v]);
            Size[u] += Size[v];
            if (Size[v] >= x.first) valid = false;
            C[u].push_back(v);
        }
        else if (v != p) Low[u] = min(Low[u], Num[v]);
    }

    if (Size[u] < x.first) valid = false;

    if (valid && !found) {
        found = true;

        int curr = Size[u];
        for (int v : C[u]) {
            if (Low[v] < Num[u]) {
                if (curr - Size[v] >= x.first) {
                    curr -= Size[v];
                    B[v] = true;
                }
            }
        }

        int opp = n - curr;
        if (opp >= y.first) {
            sol = true;
            top = {y.first, y.second, p};
            bottom = {x.first, x.second, u};
        }
        else if (opp >= x.first) {
            sol = true;
            top = {x.first, x.second, p};
            bottom = {y.first, y.second, u};
        }
    }

}

ve<int> find_split(int _n, int a, int b, int c, ve<int> p, ve<int> q) {

    int m;
    ve<int> Ans;
    queue<int> Q;

    n = _n;
    m = (int)p.size();
    Num = ve<int>(n);
    Low = ve<int>(n);
    Size = ve<int>(n);
    B = ve<bool>(n);
    G = ve<ve<int>>(n);
    C = ve<ve<int>>(n);

    for (int i = 0; i < m; i++) {
        G[p[i]].push_back(q[i]);
        G[q[i]].push_back(p[i]);
    }

    ve<pii> A = {{a, 1}, {b, 2}, {c, 3}};
    sort(A.begin(), A.end());
    x = A[0];
    y = A[1];
    z = A[2];

    cnt = 0;
    found = false;
    sol = false;
    dfs(0, -1);

    if (sol) {

        Ans = ve<int>(n, z.second);

        int sz, t, s;
        tie(sz, t, s) = bottom;

        sz--;
        Ans[s] = t;
        Q.push(s);

        while (!Q.empty()) {
            int u = Q.front();
            Q.pop();
            for (int v : C[u]) {
                if (!B[v]) {
                    if (sz > 0) {
                        sz--;
                        Ans[v] = t;
                        Q.push(v);
                    }
                }
            }
        }

        tie(sz, t, s) = top;

        sz--;
        Ans[s] = t;
        Q.push(s);

        while (!Q.empty()) {
            int u = Q.front();
            Q.pop();
            for (int v : G[u]) {
                if (Ans[v] == z.second) {
                    if (sz > 0) {
                        sz--;
                        Ans[v] = t;
                        Q.push(v);
                    }
                }
            }
        }

    }
    else Ans = ve<int>(n);

	return Ans;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ok, correct split
2 Correct 1 ms 204 KB ok, correct split
3 Correct 1 ms 204 KB ok, correct split
4 Correct 1 ms 204 KB ok, correct split
5 Correct 1 ms 204 KB ok, correct split
6 Correct 1 ms 204 KB ok, correct split
7 Correct 96 ms 24360 KB ok, correct split
8 Correct 88 ms 21744 KB ok, correct split
9 Correct 99 ms 20864 KB ok, correct split
10 Correct 89 ms 24880 KB ok, correct split
11 Correct 98 ms 24804 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ok, correct split
2 Correct 1 ms 204 KB ok, correct split
3 Correct 1 ms 204 KB ok, correct split
4 Correct 116 ms 20388 KB ok, correct split
5 Correct 83 ms 14148 KB ok, correct split
6 Correct 92 ms 24856 KB ok, correct split
7 Correct 94 ms 21400 KB ok, correct split
8 Correct 122 ms 17636 KB ok, correct split
9 Correct 92 ms 15556 KB ok, correct split
10 Correct 58 ms 12960 KB ok, correct split
11 Correct 56 ms 13004 KB ok, correct split
12 Correct 55 ms 13340 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ok, correct split
2 Correct 82 ms 14120 KB ok, correct split
3 Correct 27 ms 5808 KB ok, correct split
4 Correct 1 ms 204 KB ok, correct split
5 Correct 93 ms 18616 KB ok, correct split
6 Correct 94 ms 18344 KB ok, correct split
7 Correct 93 ms 18116 KB ok, correct split
8 Correct 95 ms 19636 KB ok, correct split
9 Correct 95 ms 17860 KB ok, correct split
10 Correct 23 ms 4904 KB ok, no valid answer
11 Correct 39 ms 7064 KB ok, no valid answer
12 Correct 65 ms 13632 KB ok, no valid answer
13 Correct 89 ms 13936 KB ok, no valid answer
14 Correct 57 ms 13324 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ok, correct split
2 Correct 1 ms 204 KB ok, no valid answer
3 Correct 1 ms 204 KB ok, correct split
4 Correct 1 ms 204 KB ok, correct split
5 Correct 1 ms 204 KB ok, correct split
6 Correct 1 ms 296 KB ok, correct split
7 Correct 1 ms 296 KB ok, correct split
8 Correct 1 ms 204 KB ok, correct split
9 Correct 3 ms 756 KB ok, correct split
10 Correct 3 ms 716 KB ok, correct split
11 Correct 1 ms 204 KB ok, correct split
12 Correct 3 ms 716 KB ok, correct split
13 Correct 1 ms 204 KB ok, correct split
14 Correct 1 ms 204 KB ok, correct split
15 Correct 1 ms 296 KB ok, correct split
16 Correct 1 ms 204 KB ok, correct split
17 Correct 1 ms 204 KB ok, correct split
18 Correct 1 ms 204 KB ok, correct split
19 Correct 1 ms 300 KB ok, correct split
20 Correct 2 ms 460 KB ok, correct split
21 Correct 3 ms 716 KB ok, correct split
22 Correct 3 ms 716 KB ok, correct split
23 Correct 3 ms 716 KB ok, correct split
24 Correct 2 ms 716 KB ok, correct split
25 Correct 3 ms 716 KB ok, correct split
26 Correct 3 ms 632 KB ok, correct split
27 Correct 3 ms 588 KB ok, correct split
28 Correct 3 ms 560 KB ok, correct split
29 Correct 1 ms 332 KB ok, correct split
30 Correct 3 ms 588 KB ok, correct split
31 Correct 2 ms 332 KB ok, correct split
32 Correct 1 ms 332 KB ok, correct split
33 Correct 1 ms 332 KB ok, correct split
34 Correct 2 ms 588 KB ok, correct split
35 Correct 3 ms 608 KB ok, correct split
36 Correct 2 ms 588 KB ok, correct split
37 Correct 3 ms 716 KB ok, correct split
38 Correct 3 ms 716 KB ok, correct split
39 Correct 3 ms 588 KB ok, correct split
40 Correct 3 ms 588 KB ok, correct split
41 Correct 2 ms 460 KB ok, correct split
42 Correct 2 ms 460 KB ok, correct split
43 Correct 3 ms 716 KB ok, correct split
44 Correct 3 ms 692 KB ok, correct split
45 Correct 3 ms 716 KB ok, correct split
46 Correct 3 ms 716 KB ok, correct split
47 Correct 2 ms 724 KB ok, no valid answer
48 Correct 3 ms 588 KB ok, correct split
49 Correct 3 ms 716 KB ok, correct split
50 Correct 1 ms 204 KB ok, no valid answer
51 Correct 1 ms 204 KB ok, no valid answer
52 Correct 2 ms 588 KB ok, no valid answer
53 Correct 3 ms 692 KB ok, no valid answer
54 Correct 2 ms 588 KB ok, no valid answer
55 Correct 3 ms 588 KB ok, no valid answer
56 Correct 3 ms 564 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB ok, correct split
2 Correct 1 ms 204 KB ok, correct split
3 Correct 1 ms 204 KB ok, correct split
4 Correct 1 ms 204 KB ok, correct split
5 Correct 1 ms 204 KB ok, correct split
6 Correct 1 ms 204 KB ok, correct split
7 Correct 96 ms 24360 KB ok, correct split
8 Correct 88 ms 21744 KB ok, correct split
9 Correct 99 ms 20864 KB ok, correct split
10 Correct 89 ms 24880 KB ok, correct split
11 Correct 98 ms 24804 KB ok, correct split
12 Correct 1 ms 204 KB ok, correct split
13 Correct 1 ms 204 KB ok, correct split
14 Correct 1 ms 204 KB ok, correct split
15 Correct 116 ms 20388 KB ok, correct split
16 Correct 83 ms 14148 KB ok, correct split
17 Correct 92 ms 24856 KB ok, correct split
18 Correct 94 ms 21400 KB ok, correct split
19 Correct 122 ms 17636 KB ok, correct split
20 Correct 92 ms 15556 KB ok, correct split
21 Correct 58 ms 12960 KB ok, correct split
22 Correct 56 ms 13004 KB ok, correct split
23 Correct 55 ms 13340 KB ok, correct split
24 Correct 1 ms 204 KB ok, correct split
25 Correct 82 ms 14120 KB ok, correct split
26 Correct 27 ms 5808 KB ok, correct split
27 Correct 1 ms 204 KB ok, correct split
28 Correct 93 ms 18616 KB ok, correct split
29 Correct 94 ms 18344 KB ok, correct split
30 Correct 93 ms 18116 KB ok, correct split
31 Correct 95 ms 19636 KB ok, correct split
32 Correct 95 ms 17860 KB ok, correct split
33 Correct 23 ms 4904 KB ok, no valid answer
34 Correct 39 ms 7064 KB ok, no valid answer
35 Correct 65 ms 13632 KB ok, no valid answer
36 Correct 89 ms 13936 KB ok, no valid answer
37 Correct 57 ms 13324 KB ok, no valid answer
38 Correct 1 ms 204 KB ok, correct split
39 Correct 1 ms 204 KB ok, no valid answer
40 Correct 1 ms 204 KB ok, correct split
41 Correct 1 ms 204 KB ok, correct split
42 Correct 1 ms 204 KB ok, correct split
43 Correct 1 ms 296 KB ok, correct split
44 Correct 1 ms 296 KB ok, correct split
45 Correct 1 ms 204 KB ok, correct split
46 Correct 3 ms 756 KB ok, correct split
47 Correct 3 ms 716 KB ok, correct split
48 Correct 1 ms 204 KB ok, correct split
49 Correct 3 ms 716 KB ok, correct split
50 Correct 1 ms 204 KB ok, correct split
51 Correct 1 ms 204 KB ok, correct split
52 Correct 1 ms 296 KB ok, correct split
53 Correct 1 ms 204 KB ok, correct split
54 Correct 1 ms 204 KB ok, correct split
55 Correct 1 ms 204 KB ok, correct split
56 Correct 1 ms 300 KB ok, correct split
57 Correct 2 ms 460 KB ok, correct split
58 Correct 3 ms 716 KB ok, correct split
59 Correct 3 ms 716 KB ok, correct split
60 Correct 3 ms 716 KB ok, correct split
61 Correct 2 ms 716 KB ok, correct split
62 Correct 3 ms 716 KB ok, correct split
63 Correct 3 ms 632 KB ok, correct split
64 Correct 3 ms 588 KB ok, correct split
65 Correct 3 ms 560 KB ok, correct split
66 Correct 1 ms 332 KB ok, correct split
67 Correct 3 ms 588 KB ok, correct split
68 Correct 2 ms 332 KB ok, correct split
69 Correct 1 ms 332 KB ok, correct split
70 Correct 1 ms 332 KB ok, correct split
71 Correct 2 ms 588 KB ok, correct split
72 Correct 3 ms 608 KB ok, correct split
73 Correct 2 ms 588 KB ok, correct split
74 Correct 3 ms 716 KB ok, correct split
75 Correct 3 ms 716 KB ok, correct split
76 Correct 3 ms 588 KB ok, correct split
77 Correct 3 ms 588 KB ok, correct split
78 Correct 2 ms 460 KB ok, correct split
79 Correct 2 ms 460 KB ok, correct split
80 Correct 3 ms 716 KB ok, correct split
81 Correct 3 ms 692 KB ok, correct split
82 Correct 3 ms 716 KB ok, correct split
83 Correct 3 ms 716 KB ok, correct split
84 Correct 2 ms 724 KB ok, no valid answer
85 Correct 3 ms 588 KB ok, correct split
86 Correct 3 ms 716 KB ok, correct split
87 Correct 1 ms 204 KB ok, no valid answer
88 Correct 1 ms 204 KB ok, no valid answer
89 Correct 2 ms 588 KB ok, no valid answer
90 Correct 3 ms 692 KB ok, no valid answer
91 Correct 2 ms 588 KB ok, no valid answer
92 Correct 3 ms 588 KB ok, no valid answer
93 Correct 3 ms 564 KB ok, no valid answer
94 Correct 95 ms 17740 KB ok, correct split
95 Correct 134 ms 23860 KB ok, correct split
96 Correct 122 ms 21968 KB ok, correct split
97 Correct 28 ms 5836 KB ok, correct split
98 Correct 30 ms 6068 KB ok, correct split
99 Correct 49 ms 8360 KB ok, correct split
100 Correct 122 ms 18500 KB ok, correct split
101 Correct 110 ms 17228 KB ok, correct split
102 Correct 105 ms 16800 KB ok, correct split
103 Correct 94 ms 16316 KB ok, correct split
104 Correct 94 ms 16540 KB ok, correct split
105 Correct 48 ms 8796 KB ok, correct split
106 Correct 94 ms 16292 KB ok, correct split
107 Correct 84 ms 14148 KB ok, correct split
108 Correct 81 ms 14112 KB ok, correct split
109 Correct 126 ms 17840 KB ok, correct split
110 Correct 125 ms 18748 KB ok, correct split
111 Correct 132 ms 18860 KB ok, correct split
112 Correct 114 ms 17484 KB ok, correct split
113 Correct 119 ms 17456 KB ok, correct split
114 Correct 12 ms 2460 KB ok, correct split
115 Correct 11 ms 2184 KB ok, correct split
116 Correct 116 ms 18540 KB ok, correct split
117 Correct 113 ms 18552 KB ok, correct split
118 Correct 89 ms 15684 KB ok, correct split
119 Correct 89 ms 15644 KB ok, correct split
120 Correct 94 ms 20420 KB ok, correct split
121 Correct 78 ms 14124 KB ok, no valid answer
122 Correct 73 ms 14020 KB ok, no valid answer
123 Correct 120 ms 18756 KB ok, no valid answer
124 Correct 125 ms 18484 KB ok, no valid answer
125 Correct 75 ms 14860 KB ok, no valid answer
126 Correct 50 ms 11984 KB ok, no valid answer
127 Correct 87 ms 15912 KB ok, no valid answer