結果

問題 No.812 Change of Class
ユーザー Konton7Konton7
提出日時 2020-05-04 00:00:15
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 166 ms / 4,000 ms
コード長 4,970 bytes
コンパイル時間 2,356 ms
コンパイル使用メモリ 212,456 KB
実行使用メモリ 9,832 KB
最終ジャッジ日時 2024-06-23 05:29:39
合計ジャッジ時間 7,624 ms
ジャッジサーバーID
(参考情報)
judge2 / judge4
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 79 ms
7,936 KB
testcase_01 AC 13 ms
5,376 KB
testcase_02 AC 42 ms
5,760 KB
testcase_03 AC 91 ms
8,704 KB
testcase_04 AC 79 ms
8,064 KB
testcase_05 AC 159 ms
8,408 KB
testcase_06 AC 135 ms
7,436 KB
testcase_07 AC 4 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 150 ms
9,000 KB
testcase_10 AC 155 ms
8,960 KB
testcase_11 AC 15 ms
6,788 KB
testcase_12 AC 102 ms
8,632 KB
testcase_13 AC 1 ms
5,376 KB
testcase_14 AC 1 ms
5,376 KB
testcase_15 AC 110 ms
6,972 KB
testcase_16 AC 8 ms
5,376 KB
testcase_17 AC 102 ms
7,352 KB
testcase_18 AC 79 ms
6,144 KB
testcase_19 AC 92 ms
6,708 KB
testcase_20 AC 166 ms
8,932 KB
testcase_21 AC 72 ms
6,128 KB
testcase_22 AC 33 ms
5,376 KB
testcase_23 AC 7 ms
5,376 KB
testcase_24 AC 11 ms
5,376 KB
testcase_25 AC 27 ms
5,376 KB
testcase_26 AC 130 ms
7,992 KB
testcase_27 AC 118 ms
7,380 KB
testcase_28 AC 84 ms
6,728 KB
testcase_29 AC 19 ms
5,376 KB
testcase_30 AC 103 ms
7,168 KB
testcase_31 AC 92 ms
6,580 KB
testcase_32 AC 41 ms
5,376 KB
testcase_33 AC 108 ms
7,740 KB
testcase_34 AC 10 ms
5,376 KB
testcase_35 AC 21 ms
5,376 KB
testcase_36 AC 8 ms
5,376 KB
testcase_37 AC 49 ms
5,376 KB
testcase_38 AC 7 ms
5,376 KB
testcase_39 AC 51 ms
5,376 KB
testcase_40 AC 14 ms
5,376 KB
testcase_41 AC 5 ms
5,376 KB
testcase_42 AC 106 ms
7,100 KB
testcase_43 AC 30 ms
6,144 KB
testcase_44 AC 73 ms
6,016 KB
testcase_45 AC 9 ms
5,376 KB
testcase_46 AC 27 ms
6,016 KB
testcase_47 AC 69 ms
6,144 KB
testcase_48 AC 82 ms
6,768 KB
testcase_49 AC 22 ms
5,376 KB
testcase_50 AC 2 ms
5,376 KB
testcase_51 AC 25 ms
5,376 KB
testcase_52 AC 52 ms
6,512 KB
testcase_53 AC 14 ms
5,376 KB
testcase_54 AC 13 ms
5,376 KB
testcase_55 AC 54 ms
7,936 KB
testcase_56 AC 67 ms
8,824 KB
testcase_57 AC 68 ms
9,180 KB
testcase_58 AC 35 ms
6,296 KB
testcase_59 AC 76 ms
9,832 KB
testcase_60 AC 2 ms
5,376 KB
testcase_61 AC 2 ms
5,376 KB
testcase_62 AC 1 ms
5,376 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function 'void djkstra(int, int, const VVI&)':
main.cpp:226:39: warning: 'days' may be used uninitialized [-Wmaybe-uninitialized]
  226 |     cout << friends << wsp << days << rt;
      |                                       ^~
main.cpp:180:38: note: 'days' was declared here
  180 |     int friends{0}, longdistance{0}, days;
      |                                      ^~~~

ソースコード

diff #

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using VI = vector<int>;
using VL = vector<ll>;
using VS = vector<string>;
using VVI = vector<VI>;
using VVL = vector<VL>;
using PII = std::pair<int, int>;
using PLL = std::pair<ll, ll>;

#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
#define rep3(i, s, n, d) for (int i = (s); i < (int)(n); i += (d))
#define allpt(v) (v).begin(), (v).end()
#define allpt_c(v) (v).cbegin(), (v).cend()
#define allpt_r(v) (v).rbegin(), (v).rend()

const int mod = 1e9 + 7, mod2 = 998244353, mod3 = 1e9 + 9;
const ll inf = 1e18;

const string wsp = " ";
const string tb = "\t";
const string rt = "\n";

template <typename T>
void show1dvec(const vector<T> &v)
{
    if (v.size() == 0)
        return;
    int n = v.size() - 1;
    rep(i, n) cout << v[i] << wsp;
    cout << v[n] << rt;

    return;
}

template <typename T>
void show2dvec(const vector<vector<T>> &v)
{
    int n = v.size();
    rep(i, n) show1dvec(v[i]);
}

template <typename T, typename S>
void show1dpair(const vector<pair<T, S>> &v)
{
    int n = v.size();
    rep(i, n) cout << v[i].first << wsp << v[i].second << rt;
    return;
}

template <typename T, typename S>
void pairzip(const vector<pair<T, S>> &v, vector<T> &t, vector<T> &s)
{
    int n = v.size();
    rep(i, n)
    {
        t.push_back(v[i].first);
        s.push_back(v[i].second);
    }
    return;
}

template <typename T>
void maxvec(vector<T> &v)
{
    T s = v[0];
    int n = v.size();
    rep(i, n - 1)
    {
        if (s > v[i + 1])
        {
            v[i + 1] = s;
        }
        s = v[i + 1];
    }
}

template <typename T, typename S>
bool myfind(T t, S s)
{
    return find(t.cbegin(), t.cend(), s) != t.cend();
}

bool check(int y, int x, int h, int w)
{
    return 0 <= y && y < h && 0 <= x && x < w;
}

template <typename T>
vector<T> cumsum(const vector<T> &v)
{
    T s = 0;
    vector<T> ret;

    rep(i, v.size())
    {
        s += v[i];
        s %= mod;
        ret.emplace_back(s);
    }
    return ret;
}

bool iskadomatsu(int a, int b, int c)
{
    return (a != b && b != c && c != a) && ((a > b && b < c) || (a < b && b > c));
}

VS split(string s, char c)
{
    VS ret;
    string part;
    s += c;
    rep(i, s.length())
    {
        if (s[i] == c)
        {
            ret.emplace_back(part);
            part = "";
        }
        else if (s[i] != c)
        {
            part += s[i];
        }
    }
    return ret;
}

string removezero(string &s)
{
    string ret;
    for (auto z : s)
        if (z != '0')
            ret += z;
    return ret;
}

ll sumdigit(ll x)
{
    ll ans{0};
    while (x > 0)
    {
        ans += x % 10;
        x /= 10;
    }
    return ans;
}

template <typename T, typename S, typename R>
ll pow_mod(T p, S q, R mod)
{
    ll ret = 1, r = p;
    while (q)
    {
        if (q % 2)
            ret *= r, ret %= mod;
        r = (r * r) % mod, q /= 2;
    }
    return ret % mod;
}

ll comb(int a, int b, const VL &frac_list, const VL &frac_inv_list)
{
    ll ret = frac_list[a];
    ret *= frac_inv_list[b];
    ret %= mod;
    ret *= frac_inv_list[a - b];
    ret %= mod;
    return ret;
}

void djkstra(int n, int x, const VVI &connect)
{
    const int maxint = 1e9;
    int friends{0}, longdistance{0}, days;
    vector<int> shortest(n, maxint);
    vector<int> search = {x};
    vector<int> new_search;
    shortest[x] = 0;

    while (!search.empty())
    {
        for (auto i : search)
        {
            for (auto j : connect[i])
            {
                if (shortest[j] > shortest[i] + 1)
                {
                    shortest[j] = shortest[i] + 1;
                    new_search.push_back(j);
                }
            }
        }
        search.clear();
        search = new_search;
        new_search.clear();
    }

    rep(i, n)
    {
        if (i != x && shortest[i] != maxint)
        {
            friends++;
            longdistance = max(longdistance, shortest[i]);
        }
    }
    if (longdistance <= 1) days = 0;
    else
    {
        int l = 1, r = 2;
        rep2(i, 1, 30)
        {
            if (l < longdistance && longdistance <= r)
            {
                days = i;
                break;
            }
            l *= 2, r *= 2;
        }
    }
    cout << friends << wsp << days << rt;
}
    



int main()
{

    // cin.tie(0);
    // ios::sync_with_stdio(false);

#ifdef DEBUG
    cout << "DEBUG MODE" << endl;
    ifstream in("input.txt"); //for debug
    cin.rdbuf(in.rdbuf());    //for debug
#endif

    int n, m, q, a, b, c;
    cin >> n >> m;
    VVI connect(n);
    rep(i, m)
    {
        cin >> a >> b;
        a--, b--;
        connect[a].emplace_back(b);
        connect[b].emplace_back(a);
    }
    cin >> q;
    rep(i, q)
    {
        cin >> c;
        djkstra(n, c - 1, connect);
    }

    return 0;
}
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