oj.uz

답안 #991835

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
991835 2024-06-03T08:33:22 Z danikoynov 항공 노선도 (JOI18_airline) C++14
37 / 100
 380 ms 67836 KB 
#include "Alicelib.h"
#include <cassert>
#include <cstdio>
#include<bits/stdc++.h>

using namespace std;

const int maxn = 2e3 + 10;
const int maxbit = 10;
const int fict = 2;
/**
from 0 to N - 1 : normal vertexes
from N to N + maxbit - 1 : binary powers
from N + maxbit to N + maxbit + fict - 1 : fictitious vertexes
vertex N + maxbit is connected to all except the binary powers

*/
void Alice( int N, int M, int A[], int B[] )
{
    if (N == 1 && M == 0)
    {
        InitG(1, 0);
        return;
    }
    vector < pair < int, int > > edges;
    for (int i = 0; i < M; i ++)
        edges.push_back({A[i], B[i]});
    for (int i = 0; i < N; i ++)
    {
        for (int bit = 0; bit < maxbit; bit ++)
        {
            if ((i & (1 << bit)) > 0)
                edges.push_back({i, N + bit});
        }
    }
    for (int i = 0; i < N + maxbit; i ++)
        edges.push_back({N + maxbit, i});
    for (int i = 0; i < N; i ++)
    {
        edges.push_back({N + maxbit + 1, i});
    }


    for (int i = N + 1; i < N + maxbit; i ++)
        edges.push_back({i - 1, i});

    InitG(N + maxbit + fict, edges.size());
    int cnt = 0;
    for (pair < int, int > cur : edges)
    {
        MakeG(cnt ++, cur.first, cur.second);
    }
}

#include "Boblib.h"
#include <cassert>
#include <cstdio>
#include<bits/stdc++.h>

using namespace std;

const int MAXN = 2e3 + 10;
struct edge
{
    int v, u;

    edge(int _v = 0, int _u = 0)
    {
        v = _v;
        u = _u;
    }
}edges[MAXN * MAXN];

int deg[MAXN], non_bin[MAXN];
vector < int > adj[MAXN];
int value[MAXN], ridx[MAXN];
vector < int > path;
void dfs(int v, int p)
{
    path.push_back(v);
    for (int u : adj[v])
    {
        if (u == p)
            continue;
        dfs(u, v);
    }
}

const int MAXBIT = 10;
const int FICT = 2;

int tf[MAXN];
void Bob( int V, int U, int C[], int D[] )
{
    if (V == 1 && U == 0)
    {
        InitMap(1, 0);
        return;
    }
    for (int i = 0; i < U; i ++)
    {
        edges[i] = edge(C[i], D[i]);
        deg[C[i]] ++;
        deg[D[i]] ++;
        //cout << C[i] << " " << D[i] << endl;

    }
    ///exit(0);

    int mx = 0;
    for (int i = 0; i < V; i ++)
        if (deg[i] > deg[mx])
        mx = i;


    for (int i = 0; i < U; i ++)
    {
        if (C[i] == mx)
            tf[D[i]] = 1;
        else
        if (D[i] == mx)
            tf[C[i]] = 1;
    }

    tf[mx] = 1;
    int fx = 0;
    while(tf[fx] == 1)
        fx ++;


    non_bin[mx] = 1;
    non_bin[fx] = 1;

        for (int i = 0; i < U; i ++)
    {
        if (C[i] == fx)
            non_bin[D[i]] = 1;
        else
        if (D[i] == fx)
            non_bin[C[i]] = 1;
    }



    for (int i = 0; i < U; i ++)
    {
        if (non_bin[C[i]] || non_bin[D[i]])
            continue;

        adj[C[i]].push_back(D[i]);
        adj[D[i]].push_back(C[i]);
    }

    int ver = 0;
    for (int i = 0; i < V; i ++)
    {
        ///cout << "non bin " << i << " : " << non_bin[i] << " " << deg[i] << endl;
        if (non_bin[i] == 0 && deg[i] == 2)
            ver = i;
    }

    ///cout << "ver " << ver << endl;
    dfs(ver, - 1);
    reverse(path.begin(), path.end());
    //for (int p : path)
      //  cout << p << " ";
      //  cout << endl;
    for (int i = 0; i < V; i ++)
        adj[i].clear();
    for (int i = 0; i < U; i ++)
    {
                adj[C[i]].push_back(D[i]);
        adj[D[i]].push_back(C[i]);
    }vector < pair < int, int > > ls;
    for (int i = 0; i < path.size(); i ++)
    {
        value[path[i]] = (1 << i);
    }


    int N = V - MAXBIT - FICT;
    for (int i = 0; i < V; i ++)
    {
        for (int u : adj[i])
        {
            if (non_bin[u] == 0)
            ridx[i] += value[u];
        }
    }
    bool sw = false;
    for (int i = 0; i < V; i ++)
    {
        if (non_bin[i] == 0 || i == mx || i == fx)
        continue;
        if (ridx[i] >= N)
            sw = true;
    }

    if (sw)
    {
        reverse(path.begin(), path.end());
for (int i = 0; i < path.size(); i ++)
    {
        value[path[i]] = (1 << i);
    }
    for (int i = 0; i < V; i ++)
        ridx[i] = 0;

    for (int i = 0; i < V; i ++)
    {
        for (int u : adj[i])
        {
            if (non_bin[u] == 0)
            ridx[i] += value[u];
        }
    }
    }


    for (int i = 0; i < U; i ++)
    {
        if (C[i] == mx || D[i] == mx)
            continue;
            if (C[i] == fx || D[i] == fx)
            continue;
        if (non_bin[C[i]] == 0 || non_bin[D[i]] == 0)
            continue;
        ls.push_back({ridx[C[i]], ridx[D[i]]});
        ///cout << "edge " << ls.back().first << " " << ls.back().second << endl;

    }

    InitMap(V - FICT - MAXBIT, ls.size());
    for (pair < int, int > cur : ls)
        MakeMap(cur.first, cur.second);




}

Compilation message

Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:121:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  121 |     for (int i = 0; i < path.size(); i ++)
      |                     ~~^~~~~~~~~~~~~
Bob.cpp:148:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  148 | for (int i = 0; i < path.size(); i ++)
      |                 ~~^~~~~~~~~~~~~
Bob.cpp:168:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  168 |         if (C[i] == mx || D[i] == mx)
      |         ^~
Bob.cpp:170:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  170 |             if (C[i] == fx || D[i] == fx)
      |             ^~

Subtask #1
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 48640 KB Output is correct
2 Correct 6 ms 48644 KB Output is correct
3 Correct 7 ms 48716 KB Output is correct
4 Correct 7 ms 46596 KB Output is correct
5 Correct 6 ms 48744 KB Output is correct
6 Correct 7 ms 48644 KB Output is correct
7 Correct 6 ms 48644 KB Output is correct
8 Correct 6 ms 48644 KB Output is correct
9 Correct 6 ms 48644 KB Output is correct
10 Correct 6 ms 46452 KB Output is correct
11 Correct 8 ms 48644 KB Output is correct
12 Correct 8 ms 48476 KB Output is correct
13 Correct 8 ms 48592 KB Output is correct
14 Correct 6 ms 48644 KB Output is correct
15 Correct 8 ms 48644 KB Output is correct
16 Correct 6 ms 48640 KB Output is correct
17 Correct 6 ms 48652 KB Output is correct
18 Correct 6 ms 48664 KB Output is correct
19 Correct 7 ms 48524 KB Output is correct
20 Correct 7 ms 48644 KB Output is correct
21 Correct 7 ms 48640 KB Output is correct
22 Correct 6 ms 48496 KB Output is correct
23 Correct 7 ms 48644 KB Output is correct
24 Correct 6 ms 46596 KB Output is correct
25 Correct 6 ms 48640 KB Output is correct
26 Correct 8 ms 48576 KB Output is correct
27 Correct 6 ms 48604 KB Output is correct
28 Correct 6 ms 48652 KB Output is correct
29 Correct 6 ms 48644 KB Output is correct
30 Correct 6 ms 46568 KB Output is correct
31 Correct 6 ms 46596 KB Output is correct
32 Correct 7 ms 46596 KB Output is correct
33 Correct 6 ms 46596 KB Output is correct
34 Correct 6 ms 46476 KB Output is correct
35 Correct 6 ms 46604 KB Output is correct
36 Correct 7 ms 48472 KB Output is correct
37 Correct 6 ms 48652 KB Output is correct
38 Correct 7 ms 48736 KB Output is correct
39 Correct 6 ms 48504 KB Output is correct
40 Correct 8 ms 48644 KB Output is correct
41 Correct 8 ms 48644 KB Output is correct
42 Correct 8 ms 48644 KB Output is correct
43 Correct 6 ms 48640 KB Output is correct
44 Correct 6 ms 46544 KB Output is correct
45 Correct 7 ms 46596 KB Output is correct
46 Correct 6 ms 48648 KB Output is correct
47 Correct 6 ms 48652 KB Output is correct
48 Correct 7 ms 48528 KB Output is correct
49 Correct 6 ms 48644 KB Output is correct
50 Correct 6 ms 46596 KB Output is correct
51 Correct 6 ms 42500 KB Output is correct
52 Correct 7 ms 48644 KB Output is correct
53 Correct 6 ms 46692 KB Output is correct
54 Correct 9 ms 48644 KB Output is correct
55 Correct 7 ms 48640 KB Output is correct
56 Correct 6 ms 48644 KB Output is correct
57 Correct 6 ms 48640 KB Output is correct
58 Correct 6 ms 48612 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 48640 KB Output is correct
2 Correct 6 ms 48644 KB Output is correct
3 Correct 7 ms 48716 KB Output is correct
4 Correct 7 ms 46596 KB Output is correct
5 Correct 6 ms 48744 KB Output is correct
6 Correct 7 ms 48644 KB Output is correct
7 Correct 6 ms 48644 KB Output is correct
8 Correct 6 ms 48644 KB Output is correct
9 Correct 6 ms 48644 KB Output is correct
10 Correct 6 ms 46452 KB Output is correct
11 Correct 8 ms 48644 KB Output is correct
12 Correct 8 ms 48476 KB Output is correct
13 Correct 8 ms 48592 KB Output is correct
14 Correct 6 ms 48644 KB Output is correct
15 Correct 8 ms 48644 KB Output is correct
16 Correct 6 ms 48640 KB Output is correct
17 Correct 6 ms 48652 KB Output is correct
18 Correct 6 ms 48664 KB Output is correct
19 Correct 7 ms 48524 KB Output is correct
20 Correct 7 ms 48644 KB Output is correct
21 Correct 7 ms 48640 KB Output is correct
22 Correct 6 ms 48496 KB Output is correct
23 Correct 7 ms 48644 KB Output is correct
24 Correct 6 ms 46596 KB Output is correct
25 Correct 6 ms 48640 KB Output is correct
26 Correct 8 ms 48576 KB Output is correct
27 Correct 6 ms 48604 KB Output is correct
28 Correct 6 ms 48652 KB Output is correct
29 Correct 6 ms 48644 KB Output is correct
30 Correct 6 ms 46568 KB Output is correct
31 Correct 6 ms 46596 KB Output is correct
32 Correct 7 ms 46596 KB Output is correct
33 Correct 6 ms 46596 KB Output is correct
34 Correct 6 ms 46476 KB Output is correct
35 Correct 6 ms 46604 KB Output is correct
36 Correct 7 ms 48472 KB Output is correct
37 Correct 6 ms 48652 KB Output is correct
38 Correct 7 ms 48736 KB Output is correct
39 Correct 6 ms 48504 KB Output is correct
40 Correct 8 ms 48644 KB Output is correct
41 Correct 8 ms 48644 KB Output is correct
42 Correct 8 ms 48644 KB Output is correct
43 Correct 6 ms 48640 KB Output is correct
44 Correct 6 ms 46544 KB Output is correct
45 Correct 7 ms 46596 KB Output is correct
46 Correct 6 ms 48648 KB Output is correct
47 Correct 6 ms 48652 KB Output is correct
48 Correct 7 ms 48528 KB Output is correct
49 Correct 6 ms 48644 KB Output is correct
50 Correct 6 ms 46596 KB Output is correct
51 Correct 6 ms 42500 KB Output is correct
52 Correct 7 ms 48644 KB Output is correct
53 Correct 6 ms 46692 KB Output is correct
54 Correct 9 ms 48644 KB Output is correct
55 Correct 7 ms 48640 KB Output is correct
56 Correct 6 ms 48644 KB Output is correct
57 Correct 6 ms 48640 KB Output is correct
58 Correct 6 ms 48612 KB Output is correct
59 Correct 6 ms 48652 KB Output is correct
60 Correct 8 ms 48652 KB Output is correct
61 Correct 8 ms 48488 KB Output is correct
62 Correct 7 ms 48652 KB Output is correct
63 Correct 10 ms 48616 KB Output is correct
64 Correct 8 ms 48636 KB Output is correct
65 Correct 7 ms 48740 KB Output is correct
66 Correct 6 ms 48644 KB Output is correct
67 Correct 6 ms 48612 KB Output is correct
68 Correct 6 ms 48644 KB Output is correct
69 Correct 6 ms 48556 KB Output is correct
70 Correct 7 ms 48644 KB Output is correct
71 Correct 6 ms 48636 KB Output is correct
72 Correct 6 ms 48644 KB Output is correct
73 Correct 6 ms 48648 KB Output is correct
74 Correct 6 ms 48892 KB Output is correct
75 Correct 6 ms 48644 KB Output is correct
76 Correct 6 ms 48652 KB Output is correct
77 Correct 6 ms 48644 KB Output is correct
78 Correct 7 ms 48604 KB Output is correct
79 Correct 8 ms 48640 KB Output is correct
80 Correct 6 ms 48644 KB Output is correct
81 Correct 6 ms 48644 KB Output is correct
82 Correct 7 ms 48644 KB Output is correct
83 Correct 6 ms 48644 KB Output is correct
84 Correct 7 ms 48644 KB Output is correct
85 Correct 6 ms 48644 KB Output is correct
86 Correct 7 ms 49064 KB Output is correct
87 Correct 6 ms 48640 KB Output is correct
88 Correct 6 ms 48740 KB Output is correct
89 Correct 6 ms 46484 KB Output is correct
90 Correct 6 ms 46568 KB Output is correct
91 Correct 7 ms 46596 KB Output is correct
92 Correct 6 ms 46596 KB Output is correct
93 Correct 7 ms 46592 KB Output is correct
94 Correct 8 ms 48524 KB Output is correct
95 Correct 8 ms 48644 KB Output is correct
96 Correct 8 ms 48440 KB Output is correct
97 Correct 6 ms 48640 KB Output is correct
98 Correct 7 ms 48644 KB Output is correct
99 Correct 6 ms 48652 KB Output is correct
100 Correct 7 ms 48648 KB Output is correct
101 Correct 7 ms 48640 KB Output is correct
102 Correct 7 ms 46596 KB Output is correct
103 Correct 6 ms 48644 KB Output is correct
104 Correct 7 ms 48652 KB Output is correct
105 Correct 6 ms 48652 KB Output is correct
106 Correct 6 ms 48652 KB Output is correct
107 Correct 6 ms 48644 KB Output is correct
108 Correct 8 ms 48640 KB Output is correct
109 Correct 8 ms 48644 KB Output is correct
110 Correct 7 ms 48644 KB Output is correct
111 Correct 7 ms 48644 KB Output is correct
112 Correct 6 ms 48648 KB Output is correct
113 Correct 6 ms 48640 KB Output is correct
114 Correct 8 ms 48644 KB Output is correct
115 Correct 6 ms 48648 KB Output is correct
116 Correct 6 ms 48644 KB Output is correct
117 Correct 7 ms 48640 KB Output is correct
118 Correct 6 ms 48644 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 380 ms 67836 KB Wrong Answer [11]
2 Halted 0 ms 0 KB -