oj.uz

Submission #289173

# Submission time Handle Problem Language Result Execution time Memory
289173 2020-09-02T12:38:51 Z stoyan_malinin Game (IOI14_game) C++14
100 / 100
 831 ms 11860 KB 
#include "game.h"
//#include "grader.cpp"

#include <vector>
#include <cstring>
#include <iostream>

using namespace std;

const int MAXN = 1505;

struct DSU
{
    int parent[MAXN];
    vector <int> nodes[MAXN];

    DSU(){}
    DSU(int n)
    {
        for(int i = 0;i<n;i++)
        {
            this->parent[i] = i;
            this->nodes[i] = {i};
        }
    }

    int Find(int x)
    {
        if(parent[x]==x) return x;

        parent[x] = Find(parent[x]);
        return parent[x];
    }

    bool Union(int u, int v)
    {
        u = Find(u);
        v = Find(v);
        if(u==v) return false;
        if(nodes[u].size()<nodes[v].size()) swap(u, v);

        parent[v] = u;
        for(int x: nodes[v]) nodes[u].push_back(x);

        return true;
    }
};

DSU T;
bool asked[MAXN][MAXN];

void initialize(int n)
{
    T = DSU(n);
    memset(asked, false, sizeof(asked));
}

int hasEdge(int u, int v)
{
    if(T.Find(u)==T.Find(v))
    {
        return 1;
    }

    asked[u][v] = true;
    asked[v][u] = true;

    vector <int> &v1 = T.nodes[T.Find(u)];
    vector <int> &v2 = T.nodes[T.Find(v)];

    /*
    cout << "v1:";
    for(int x: v1) cout << " " << x;
    cout << '\n';

    cout << "v2:";
    for(int x: v2) cout << " " << x;
    cout << '\n';
    */

    bool found = 0;
    for(int x: v1)
    {
        for(int y: v2)
        {
            if(asked[x][y]==false)
            {
                found = 1;
                break;
            }
        }
    }

    if(found==false) T.Union(u, v);
    return found^1;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2560 KB Output is correct
2 Correct 2 ms 2560 KB Output is correct
3 Correct 2 ms 2560 KB Output is correct
4 Correct 2 ms 2560 KB Output is correct
5 Correct 2 ms 2560 KB Output is correct
6 Correct 2 ms 2560 KB Output is correct
7 Correct 2 ms 2560 KB Output is correct
8 Correct 2 ms 2560 KB Output is correct
9 Correct 2 ms 2560 KB Output is correct
10 Correct 2 ms 2560 KB Output is correct
11 Correct 2 ms 2560 KB Output is correct
12 Correct 2 ms 2560 KB Output is correct
13 Correct 2 ms 2560 KB Output is correct
14 Correct 2 ms 2560 KB Output is correct
15 Correct 2 ms 2560 KB Output is correct
16 Correct 2 ms 2560 KB Output is correct
17 Correct 2 ms 2560 KB Output is correct
18 Correct 2 ms 2560 KB Output is correct
19 Correct 2 ms 2560 KB Output is correct
20 Correct 2 ms 2560 KB Output is correct
21 Correct 2 ms 2560 KB Output is correct
22 Correct 2 ms 2560 KB Output is correct
23 Correct 2 ms 2560 KB Output is correct
24 Correct 2 ms 2560 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2688 KB Output is correct
2 Correct 2 ms 2560 KB Output is correct
3 Correct 2 ms 2560 KB Output is correct
4 Correct 2 ms 2592 KB Output is correct
5 Correct 2 ms 2560 KB Output is correct
6 Correct 2 ms 2560 KB Output is correct
7 Correct 2 ms 2560 KB Output is correct
8 Correct 2 ms 2560 KB Output is correct
9 Correct 2 ms 2560 KB Output is correct
10 Correct 2 ms 2560 KB Output is correct
11 Correct 2 ms 2560 KB Output is correct
12 Correct 2 ms 2560 KB Output is correct
13 Correct 2 ms 2560 KB Output is correct
14 Correct 2 ms 2560 KB Output is correct
15 Correct 2 ms 2560 KB Output is correct
16 Correct 2 ms 2560 KB Output is correct
17 Correct 2 ms 2560 KB Output is correct
18 Correct 2 ms 2688 KB Output is correct
19 Correct 2 ms 2560 KB Output is correct
20 Correct 2 ms 2688 KB Output is correct
21 Correct 2 ms 2560 KB Output is correct
22 Correct 2 ms 2560 KB Output is correct
23 Correct 2 ms 2560 KB Output is correct
24 Correct 2 ms 2560 KB Output is correct
25 Correct 2 ms 2560 KB Output is correct
26 Correct 2 ms 2560 KB Output is correct
27 Correct 2 ms 2560 KB Output is correct
28 Correct 2 ms 2560 KB Output is correct
29 Correct 2 ms 2560 KB Output is correct
30 Correct 2 ms 2560 KB Output is correct
31 Correct 2 ms 2560 KB Output is correct
32 Correct 2 ms 2560 KB Output is correct
33 Correct 2 ms 2560 KB Output is correct
34 Correct 3 ms 2688 KB Output is correct
35 Correct 3 ms 2688 KB Output is correct
36 Correct 3 ms 2688 KB Output is correct
37 Correct 3 ms 2688 KB Output is correct
38 Correct 3 ms 2688 KB Output is correct
39 Correct 3 ms 2688 KB Output is correct
40 Correct 3 ms 2688 KB Output is correct
41 Correct 4 ms 2688 KB Output is correct
42 Correct 3 ms 2688 KB Output is correct
43 Correct 3 ms 2688 KB Output is correct
44 Correct 3 ms 2688 KB Output is correct
45 Correct 3 ms 2688 KB Output is correct
46 Correct 3 ms 2688 KB Output is correct
47 Correct 3 ms 2688 KB Output is correct
48 Correct 3 ms 2688 KB Output is correct
49 Correct 3 ms 2688 KB Output is correct
50 Correct 3 ms 2688 KB Output is correct
51 Correct 3 ms 2688 KB Output is correct
52 Correct 3 ms 2688 KB Output is correct
53 Correct 3 ms 2688 KB Output is correct
54 Correct 3 ms 2688 KB Output is correct

Subtask #3
58.0 / 58.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2560 KB Output is correct
2 Correct 2 ms 2560 KB Output is correct
3 Correct 2 ms 2560 KB Output is correct
4 Correct 2 ms 2560 KB Output is correct
5 Correct 2 ms 2560 KB Output is correct
6 Correct 2 ms 2560 KB Output is correct
7 Correct 2 ms 2560 KB Output is correct
8 Correct 2 ms 2560 KB Output is correct
9 Correct 2 ms 2560 KB Output is correct
10 Correct 2 ms 2560 KB Output is correct
11 Correct 2 ms 2560 KB Output is correct
12 Correct 2 ms 2560 KB Output is correct
13 Correct 2 ms 2560 KB Output is correct
14 Correct 2 ms 2560 KB Output is correct
15 Correct 2 ms 2560 KB Output is correct
16 Correct 2 ms 2560 KB Output is correct
17 Correct 2 ms 2560 KB Output is correct
18 Correct 2 ms 2560 KB Output is correct
19 Correct 2 ms 2560 KB Output is correct
20 Correct 2 ms 2560 KB Output is correct
21 Correct 2 ms 2560 KB Output is correct
22 Correct 2 ms 2560 KB Output is correct
23 Correct 2 ms 2560 KB Output is correct
24 Correct 2 ms 2560 KB Output is correct
25 Correct 2 ms 2560 KB Output is correct
26 Correct 2 ms 2560 KB Output is correct
27 Correct 2 ms 2560 KB Output is correct
28 Correct 2 ms 2560 KB Output is correct
29 Correct 2 ms 2560 KB Output is correct
30 Correct 2 ms 2560 KB Output is correct
31 Correct 2 ms 2560 KB Output is correct
32 Correct 2 ms 2560 KB Output is correct
33 Correct 2 ms 2560 KB Output is correct
34 Correct 3 ms 2688 KB Output is correct
35 Correct 3 ms 2688 KB Output is correct
36 Correct 4 ms 2688 KB Output is correct
37 Correct 3 ms 2688 KB Output is correct
38 Correct 3 ms 2688 KB Output is correct
39 Correct 3 ms 2688 KB Output is correct
40 Correct 3 ms 2688 KB Output is correct
41 Correct 3 ms 2688 KB Output is correct
42 Correct 3 ms 2688 KB Output is correct
43 Correct 3 ms 2688 KB Output is correct
44 Correct 4 ms 2688 KB Output is correct
45 Correct 3 ms 2688 KB Output is correct
46 Correct 3 ms 2688 KB Output is correct
47 Correct 3 ms 2688 KB Output is correct
48 Correct 4 ms 2688 KB Output is correct
49 Correct 4 ms 2688 KB Output is correct
50 Correct 4 ms 2688 KB Output is correct
51 Correct 3 ms 2688 KB Output is correct
52 Correct 3 ms 2688 KB Output is correct
53 Correct 5 ms 2688 KB Output is correct
54 Correct 3 ms 2688 KB Output is correct
55 Correct 78 ms 4344 KB Output is correct
56 Correct 69 ms 4344 KB Output is correct
57 Correct 70 ms 4472 KB Output is correct
58 Correct 73 ms 4472 KB Output is correct
59 Correct 74 ms 4472 KB Output is correct
60 Correct 92 ms 4472 KB Output is correct
61 Correct 68 ms 4472 KB Output is correct
62 Correct 72 ms 4564 KB Output is correct
63 Correct 72 ms 4472 KB Output is correct
64 Correct 101 ms 4344 KB Output is correct
65 Correct 135 ms 4344 KB Output is correct
66 Correct 78 ms 4472 KB Output is correct
67 Correct 78 ms 4444 KB Output is correct
68 Correct 63 ms 4472 KB Output is correct
69 Correct 62 ms 4444 KB Output is correct
70 Correct 64 ms 4472 KB Output is correct
71 Correct 257 ms 4436 KB Output is correct
72 Correct 233 ms 4344 KB Output is correct
73 Correct 238 ms 4480 KB Output is correct
74 Correct 228 ms 4428 KB Output is correct
75 Correct 231 ms 4344 KB Output is correct
76 Correct 168 ms 5624 KB Output is correct
77 Correct 175 ms 5448 KB Output is correct
78 Correct 170 ms 5624 KB Output is correct
79 Correct 209 ms 5496 KB Output is correct
80 Correct 162 ms 5496 KB Output is correct
81 Correct 179 ms 5496 KB Output is correct
82 Correct 167 ms 5496 KB Output is correct
83 Correct 165 ms 5492 KB Output is correct
84 Correct 165 ms 5496 KB Output is correct
85 Correct 301 ms 6776 KB Output is correct
86 Correct 295 ms 6776 KB Output is correct
87 Correct 299 ms 6832 KB Output is correct
88 Correct 301 ms 6776 KB Output is correct
89 Correct 312 ms 6776 KB Output is correct
90 Correct 299 ms 6776 KB Output is correct
91 Correct 303 ms 6776 KB Output is correct
92 Correct 302 ms 6820 KB Output is correct
93 Correct 331 ms 6732 KB Output is correct
94 Correct 819 ms 11640 KB Output is correct
95 Correct 764 ms 11764 KB Output is correct
96 Correct 728 ms 11748 KB Output is correct
97 Correct 759 ms 11796 KB Output is correct
98 Correct 721 ms 11852 KB Output is correct
99 Correct 831 ms 11860 KB Output is correct
100 Correct 689 ms 11836 KB Output is correct