oj.uz

답안 #130159

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
130159 2019-07-14T06:04:58 Z BThero 항공 노선도 (JOI18_airline) C++17
37 / 100
 703 ms 19564 KB 
// Why am I so dumb? :c
// chrono::system_clock::now().time_since_epoch().count()

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#include "Alicelib.h"

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef pair<int, int> pii;   
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

static const int MAXN = (int)1e3 + 5;

static pii e[MAXN * MAXN];

static int n, m;

void buildBad() {
    vector<pii> _e;

    for (int i = 0; i < m; ++i) {
        _e.pb(e[i]);
    }

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < i; ++j) {
            _e.pb(mp(i, n + j));
        }
    }

    for (int i = 0; i < n; ++i) {
        _e.pb(mp(n + i, n + n));
    }

    for (int i = 0; i < n + n; ++i) {
        _e.pb(mp(i, n + n + 1));
    }

    InitG(n + n + 2, _e.size());

    for (int i = 0; i < _e.size(); ++i) {
        MakeG(i, _e[i].fi, _e[i].se);
    }
}

void buildGood() {
    int k = 0;

    while ((1 << k) < n) {
        ++k;
    }

    vector<pii> _e;

    for (int i = 0; i < m; ++i) {
        _e.pb(e[i]);
    }

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < k; ++j) {
            if (i & (1 << j)) {
                _e.pb(mp(i, n + j));
            }
        }
    }

    for (int i = 0; i < k; ++i) {
        _e.pb(mp(n + i, n + i + 1));
        _e.pb(mp(n + i, n + k + 1));
    }

    _e.pb(mp(n + k, n + k + 1));
    _e.pb(mp(n + k - 2, n + k));

    for (int i = 0; i <= n + k; ++i) {
        _e.pb(mp(i, n + k + 2));
    }

    InitG(n + k + 3, _e.size());

    for (int i = 0; i < _e.size(); ++i) {
        MakeG(i, _e[i].fi, _e[i].se);
    }
}

void Alice(int _n, int _m, int A[], int B[]) {
    n = _n;
    m = _m;

    for (int i = 0; i < m; ++i) {
        e[i] = mp(A[i], B[i]);
    }

    buildBad();
}


// Why am I so dumb? :c
// chrono::system_clock::now().time_since_epoch().count()

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#include "Boblib.h"

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;
using namespace __gnu_pbds;
 
typedef long long ll;   
typedef pair<int, int> pii;
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

static const int MAXN = (int)2e3 + 5;
static const int INF = (int)1e9;

static int id[MAXN], deg[MAXN], tp[MAXN];

static bool adj[MAXN][MAXN];

static int dep[MAXN];

static pii e[MAXN];

static int n, m;

void solve() {
    vector<pii> _e;

    for (int i = 0; i < m; ++i) {
        int u = e[i].fi;
        int v = e[i].se;
        ++deg[u];
        ++deg[v];
        adj[u][v] = 1;
        adj[v][u] = 1;
    }

    int boss = 0, me = 0, cnt = 0;

    while (deg[boss] != n - 2) {
        ++boss;
    }

    while (me == boss || adj[boss][me]) {
        ++me;
    }

    for (int i = 0; i < n; ++i) {
        if (i == me) {
            tp[i] = 2;
        }
        else if (i == boss) {
            tp[i] = 3;
        }
        else {
            if (adj[i][me]) {
                tp[i] = 0;
                ++cnt;
            }
            else {
                tp[i] = 1;
            }
        }
    }

    int _n;

    if (cnt * 2 + 2 == n) {
        _n = cnt;

        for (int i = 0; i < n; ++i) {
            if (tp[i] == 0) {
                for (int j = 0; j < n; ++j) {
                    if (tp[j] == 1 && adj[i][j]) {
                        ++id[j];
                    }
                }
            }
        }

        for (int i = 0; i < n; ++i) {
            if (tp[i] == 1) {
                for (int j = i + 1; j < n; ++j) {
                    if (tp[j] == 1 && adj[i][j]) {
                        _e.pb(mp(id[i], id[j]));
                    }
                }
            }
        }

        InitMap(_n, _e.size());

        for (int i = 0; i < _e.size(); ++i) {
            MakeMap(_e[i].fi, _e[i].se);
        }

        return;
    }

    fill(deg, deg + n, 0);

    for (int i = 0; i < n; ++i) {
        if (tp[i] == 1) {
            ++_n;
        }                
    }

    for (int i = 0; i < m; ++i) {
        int u = e[i].fi;
        int v = e[i].se;

        if (tp[u] == 0 && tp[v] == 0) {
            ++deg[u];
            ++deg[v];
        }
    }

    int meshok = -1;

    for (int i = 0; i < n; ++i) {
        if (tp[i] == 0) {
            if (meshok == -1 || deg[i] < deg[meshok]) {
                meshok = i;
            }
        }
    }

    for (int i = 0; i < n; ++i) {
        if (tp[i] == 0) {
            dep[i] = INF;
        }
    }

    queue<int> q;
    q.push(meshok);
    dep[meshok] = 0;

    while (!q.empty()) {
        int v = q.front();
        q.pop();

        for (int to = 0; to < n; ++to) {
            if (tp[to] == 0 && adj[v][to] && dep[to] > dep[v] + 1) {
                dep[to] = dep[v] + 1;
                q.push(to);
            }
        }
    }

    for (int i = 0; i < n; ++i) {
        if (tp[i] == 0) {
            for (int j = 0; j < n; ++j) {
                if (tp[j] == 1 && adj[i][j]) {
                    id[j] += (1 << dep[i]);
                }
            }
        }
    }

    for (int i = 0; i < n; ++i) {
        if (tp[i] == 1) {
            for (int j = i + 1; j < n; ++j) {
                if (tp[j] == 1) {
                    if (adj[i][j]) {
                        _e.pb(mp(id[i], id[j]));
                    }
                }
            }
        }
    }

    InitMap(_n, _e.size());

    for (int i = 0; i < _e.size(); ++i) {
        MakeMap(_e[i].fi, _e[i].se);
    }
}

void Bob(int _n, int _m, int A[], int B[]) {
    n = _n;
    m = _m;

    for (int i = 0; i < m; ++i) {
        e[i] = mp(A[i], B[i]);
    }    

    solve();
}

Compilation message

Alice.cpp: In function 'void buildBad()':
Alice.cpp:56:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < _e.size(); ++i) {
                     ~~^~~~~~~~~~~
Alice.cpp: In function 'void buildGood()':
Alice.cpp:96:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < _e.size(); ++i) {
                     ~~^~~~~~~~~~~

Bob.cpp: In function 'void solve()':
Bob.cpp:107:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < _e.size(); ++i) {
                         ~~^~~~~~~~~~~
Bob.cpp:188:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < _e.size(); ++i) {
                     ~~^~~~~~~~~~~
Bob.cpp:186:12: warning: '_n' may be used uninitialized in this function [-Wmaybe-uninitialized]
     InitMap(_n, _e.size());
     ~~~~~~~^~~~~~~~~~~~~~~

Subtask #1
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 6896 KB Output is correct
2 Correct 9 ms 6672 KB Output is correct
3 Correct 9 ms 6640 KB Output is correct
4 Correct 8 ms 6896 KB Output is correct
5 Correct 9 ms 6656 KB Output is correct
6 Correct 9 ms 6896 KB Output is correct
7 Correct 8 ms 6640 KB Output is correct
8 Correct 9 ms 6896 KB Output is correct
9 Correct 9 ms 6640 KB Output is correct
10 Correct 10 ms 6648 KB Output is correct
11 Correct 9 ms 6664 KB Output is correct
12 Correct 9 ms 6896 KB Output is correct
13 Correct 9 ms 6896 KB Output is correct
14 Correct 9 ms 6640 KB Output is correct
15 Correct 9 ms 6896 KB Output is correct
16 Correct 8 ms 6640 KB Output is correct
17 Correct 8 ms 6640 KB Output is correct
18 Correct 9 ms 6640 KB Output is correct
19 Correct 10 ms 6896 KB Output is correct
20 Correct 9 ms 6896 KB Output is correct
21 Correct 9 ms 6640 KB Output is correct
22 Correct 9 ms 6648 KB Output is correct
23 Correct 10 ms 6640 KB Output is correct
24 Correct 8 ms 6640 KB Output is correct
25 Correct 8 ms 6640 KB Output is correct
26 Correct 9 ms 6640 KB Output is correct
27 Correct 9 ms 6896 KB Output is correct
28 Correct 8 ms 6640 KB Output is correct
29 Correct 9 ms 6640 KB Output is correct
30 Correct 9 ms 6896 KB Output is correct
31 Correct 9 ms 6904 KB Output is correct
32 Correct 9 ms 6640 KB Output is correct
33 Correct 9 ms 6896 KB Output is correct
34 Correct 8 ms 6640 KB Output is correct
35 Correct 8 ms 6656 KB Output is correct
36 Correct 9 ms 6896 KB Output is correct
37 Correct 10 ms 6640 KB Output is correct
38 Correct 9 ms 6896 KB Output is correct
39 Correct 8 ms 6640 KB Output is correct
40 Correct 8 ms 6640 KB Output is correct
41 Correct 9 ms 6640 KB Output is correct
42 Correct 8 ms 6640 KB Output is correct
43 Correct 9 ms 6640 KB Output is correct
44 Correct 8 ms 6640 KB Output is correct
45 Correct 9 ms 6736 KB Output is correct
46 Correct 8 ms 6640 KB Output is correct
47 Correct 9 ms 6896 KB Output is correct
48 Correct 9 ms 6896 KB Output is correct
49 Correct 9 ms 6896 KB Output is correct
50 Correct 8 ms 6640 KB Output is correct
51 Correct 8 ms 6640 KB Output is correct
52 Correct 8 ms 6640 KB Output is correct
53 Correct 9 ms 6896 KB Output is correct
54 Correct 8 ms 6640 KB Output is correct
55 Correct 9 ms 6776 KB Output is correct
56 Correct 9 ms 6896 KB Output is correct
57 Correct 9 ms 6640 KB Output is correct
58 Correct 9 ms 6896 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 6896 KB Output is correct
2 Correct 9 ms 6672 KB Output is correct
3 Correct 9 ms 6640 KB Output is correct
4 Correct 8 ms 6896 KB Output is correct
5 Correct 9 ms 6656 KB Output is correct
6 Correct 9 ms 6896 KB Output is correct
7 Correct 8 ms 6640 KB Output is correct
8 Correct 9 ms 6896 KB Output is correct
9 Correct 9 ms 6640 KB Output is correct
10 Correct 10 ms 6648 KB Output is correct
11 Correct 9 ms 6664 KB Output is correct
12 Correct 9 ms 6896 KB Output is correct
13 Correct 9 ms 6896 KB Output is correct
14 Correct 9 ms 6640 KB Output is correct
15 Correct 9 ms 6896 KB Output is correct
16 Correct 8 ms 6640 KB Output is correct
17 Correct 8 ms 6640 KB Output is correct
18 Correct 9 ms 6640 KB Output is correct
19 Correct 10 ms 6896 KB Output is correct
20 Correct 9 ms 6896 KB Output is correct
21 Correct 9 ms 6640 KB Output is correct
22 Correct 9 ms 6648 KB Output is correct
23 Correct 10 ms 6640 KB Output is correct
24 Correct 8 ms 6640 KB Output is correct
25 Correct 8 ms 6640 KB Output is correct
26 Correct 9 ms 6640 KB Output is correct
27 Correct 9 ms 6896 KB Output is correct
28 Correct 8 ms 6640 KB Output is correct
29 Correct 9 ms 6640 KB Output is correct
30 Correct 9 ms 6896 KB Output is correct
31 Correct 9 ms 6904 KB Output is correct
32 Correct 9 ms 6640 KB Output is correct
33 Correct 9 ms 6896 KB Output is correct
34 Correct 8 ms 6640 KB Output is correct
35 Correct 8 ms 6656 KB Output is correct
36 Correct 9 ms 6896 KB Output is correct
37 Correct 10 ms 6640 KB Output is correct
38 Correct 9 ms 6896 KB Output is correct
39 Correct 8 ms 6640 KB Output is correct
40 Correct 8 ms 6640 KB Output is correct
41 Correct 9 ms 6640 KB Output is correct
42 Correct 8 ms 6640 KB Output is correct
43 Correct 9 ms 6640 KB Output is correct
44 Correct 8 ms 6640 KB Output is correct
45 Correct 9 ms 6736 KB Output is correct
46 Correct 8 ms 6640 KB Output is correct
47 Correct 9 ms 6896 KB Output is correct
48 Correct 9 ms 6896 KB Output is correct
49 Correct 9 ms 6896 KB Output is correct
50 Correct 8 ms 6640 KB Output is correct
51 Correct 8 ms 6640 KB Output is correct
52 Correct 8 ms 6640 KB Output is correct
53 Correct 9 ms 6896 KB Output is correct
54 Correct 8 ms 6640 KB Output is correct
55 Correct 9 ms 6776 KB Output is correct
56 Correct 9 ms 6896 KB Output is correct
57 Correct 9 ms 6640 KB Output is correct
58 Correct 9 ms 6896 KB Output is correct
59 Correct 9 ms 6896 KB Output is correct
60 Correct 9 ms 6896 KB Output is correct
61 Correct 9 ms 6736 KB Output is correct
62 Correct 9 ms 6896 KB Output is correct
63 Correct 9 ms 6640 KB Output is correct
64 Correct 9 ms 6896 KB Output is correct
65 Correct 9 ms 6896 KB Output is correct
66 Correct 9 ms 6896 KB Output is correct
67 Correct 9 ms 6896 KB Output is correct
68 Correct 9 ms 6640 KB Output is correct
69 Correct 9 ms 6640 KB Output is correct
70 Correct 9 ms 6896 KB Output is correct
71 Correct 9 ms 6896 KB Output is correct
72 Correct 9 ms 6896 KB Output is correct
73 Correct 9 ms 6728 KB Output is correct
74 Correct 10 ms 6896 KB Output is correct
75 Correct 11 ms 6896 KB Output is correct
76 Correct 11 ms 6896 KB Output is correct
77 Correct 10 ms 6896 KB Output is correct
78 Correct 9 ms 6896 KB Output is correct
79 Correct 9 ms 6640 KB Output is correct
80 Correct 9 ms 6896 KB Output is correct
81 Correct 9 ms 6640 KB Output is correct
82 Correct 9 ms 6640 KB Output is correct
83 Correct 9 ms 6640 KB Output is correct
84 Correct 9 ms 6896 KB Output is correct
85 Correct 9 ms 6896 KB Output is correct
86 Correct 9 ms 6896 KB Output is correct
87 Correct 9 ms 6728 KB Output is correct
88 Correct 10 ms 6640 KB Output is correct
89 Correct 10 ms 6648 KB Output is correct
90 Correct 9 ms 6640 KB Output is correct
91 Correct 9 ms 6640 KB Output is correct
92 Correct 9 ms 6896 KB Output is correct
93 Correct 9 ms 6640 KB Output is correct
94 Correct 11 ms 6896 KB Output is correct
95 Correct 11 ms 6904 KB Output is correct
96 Correct 9 ms 6904 KB Output is correct
97 Correct 10 ms 6728 KB Output is correct
98 Correct 9 ms 6896 KB Output is correct
99 Correct 9 ms 6896 KB Output is correct
100 Correct 9 ms 6896 KB Output is correct
101 Correct 9 ms 6640 KB Output is correct
102 Correct 9 ms 6776 KB Output is correct
103 Correct 9 ms 6904 KB Output is correct
104 Correct 9 ms 6896 KB Output is correct
105 Correct 9 ms 6896 KB Output is correct
106 Correct 9 ms 6904 KB Output is correct
107 Correct 9 ms 6640 KB Output is correct
108 Correct 9 ms 6896 KB Output is correct
109 Correct 9 ms 6896 KB Output is correct
110 Correct 9 ms 6640 KB Output is correct
111 Correct 9 ms 6640 KB Output is correct
112 Correct 9 ms 6640 KB Output is correct
113 Correct 9 ms 6640 KB Output is correct
114 Correct 9 ms 6896 KB Output is correct
115 Correct 9 ms 6736 KB Output is correct
116 Correct 9 ms 6896 KB Output is correct
117 Correct 9 ms 6896 KB Output is correct
118 Correct 8 ms 6640 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 703 ms 19564 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -