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답안 #1095468

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1095468 2024-10-02T10:03:52 Z MtSaka 열대 식물원 (Tropical Garden) (IOI11_garden) C++17
100 / 100
 56 ms 30180 KB 
#include "bits/stdc++.h"
#include "garden.h"
#include "gardenlib.h"
#define overload(a, b, c, d, ...) d
#define rep1(a) for (ll _ = 0; _ < (ll)a; ++_)
#define rep2(i, a) for (ll i = 0; i < (ll)(a); ++i)
#define rep3(i, a, b) for (ll i = (ll)(a); i < (ll)(b); ++i)
#define rep(...) overload(__VA_ARGS__, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep1(i, a) for (ll i = (ll)(a) - 1; i >= 0; --i)
#define rrep2(i, a, b) for (ll i = (ll)(b) - 1; i >= (ll)(a); --i)
#define rrep(...) overload(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define pb push_back
#define eb emplace_back
using namespace std;
using ll = long long;
using ull = unsigned long long;
using i128 = __int128_t;
using ld = long double;
using vi = vector<int>;
using vl = vector<ll>;
template <typename T, typename U>
inline bool chmin(T& a, const U& b) { return (a > b ? a = b, true : false); }
template <typename T, typename U>
inline bool chmax(T& a, const U& b) { return (a < b ? a = b, true : false); }
int to[300001];
int deg[150001];
int dist[300001];
vector<int> rg[300001];

void count_routes(int n, int m, int p, int r[][2], int q, int query[]) {
    fill(to, to + 2 * n, -1);
    fill(deg, deg + n, 0);
    rep(i, m) {
        deg[r[i][0]]++, deg[r[i][1]]++;
    }
    rep(i, m) {
        int u = r[i][0], v = r[i][1];
        if (to[u] == -1)
            to[u] = ((deg[v] > 1 && to[v] == -1) ? v + n : v);
        else if (to[u + n] == -1)
            to[u + n] = ((deg[v] > 1 && to[v] == -1) ? v + n : v);
        if (to[v] == -1)
            to[v] = ((deg[u] > 1 && to[u] == v + n) ? u + n : u);
        else if (to[v + n] == -1)
            to[v + n] = ((deg[u] > 1 && to[u] == v) ? u + n : u);
    }
    // rep(i,n)if(to[i+n]==-1)to[i+n]=to[i];
    rep(i, 2 * n) rg[i].clear();
    rep(i, 2 * n) if (to[i] != -1) rg[to[i]].eb(i);
    queue<int> que;
    auto cal = [&](int p) {
        fill(dist, dist + 2 * n, 1e9);
        que.emplace(p);
        dist[p] = 0;
        while (!que.empty()) {
            int v = que.front();
            que.pop();
            for (auto u : rg[v])
                if (dist[u] > dist[v] + 1) {
                    dist[u] = dist[v] + 1;
                    que.emplace(u);
                }
        }

        int now = p;
        int cycle = 2e9;
        rep(i, 1, 2 * n + 1) {
            now = to[now];
            if (now == p) {
                cycle = i;
                break;
            }
        }
        vector<int> ans(q);
        if (cycle != 2e9) {
            vector<vector<int>> f(cycle);
            rep(i, n) {
                f[dist[i] % cycle].eb(dist[i]);
            }
            rep(i, cycle) sort(all(f[i]));
            rep(i, q) {
                const int k = query[i];
                ans[i] += upper_bound(all(f[k % cycle]), k) - f[k % cycle].begin();
            }
        } else {
            map<int, int> cnt;
            rep(i, n) cnt[dist[i]]++;
            rep(i, q) {
                ans[i] += cnt[query[i]];
            }
        }
        return ans;
    };
    auto ans1 = cal(p), ans2 = cal(p + n);
    rep(i, q) answer(ans1[i] + ans2[i]);
}

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 3 ms 10844 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 3 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 7 ms 12292 KB Output is correct
12 Correct 12 ms 13148 KB Output is correct
13 Correct 29 ms 25792 KB Output is correct
14 Correct 35 ms 20524 KB Output is correct
15 Correct 39 ms 20320 KB Output is correct
16 Correct 33 ms 18904 KB Output is correct
17 Correct 31 ms 17628 KB Output is correct
18 Correct 12 ms 12632 KB Output is correct
19 Correct 35 ms 20500 KB Output is correct
20 Correct 39 ms 19796 KB Output is correct
21 Correct 31 ms 18260 KB Output is correct
22 Correct 31 ms 17712 KB Output is correct
23 Correct 36 ms 21180 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 3 ms 10844 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 7 ms 12292 KB Output is correct
12 Correct 12 ms 13148 KB Output is correct
13 Correct 29 ms 25792 KB Output is correct
14 Correct 35 ms 20524 KB Output is correct
15 Correct 39 ms 20320 KB Output is correct
16 Correct 33 ms 18904 KB Output is correct
17 Correct 31 ms 17628 KB Output is correct
18 Correct 12 ms 12632 KB Output is correct
19 Correct 35 ms 20500 KB Output is correct
20 Correct 39 ms 19796 KB Output is correct
21 Correct 31 ms 18260 KB Output is correct
22 Correct 31 ms 17712 KB Output is correct
23 Correct 36 ms 21180 KB Output is correct
24 Correct 2 ms 10840 KB Output is correct
25 Correct 6 ms 12300 KB Output is correct
26 Correct 12 ms 13148 KB Output is correct
27 Correct 29 ms 25904 KB Output is correct
28 Correct 35 ms 20532 KB Output is correct
29 Correct 45 ms 19816 KB Output is correct
30 Correct 36 ms 18896 KB Output is correct
31 Correct 36 ms 17748 KB Output is correct
32 Correct 12 ms 12840 KB Output is correct
33 Correct 36 ms 20576 KB Output is correct
34 Correct 40 ms 20316 KB Output is correct
35 Correct 34 ms 18260 KB Output is correct
36 Correct 36 ms 17808 KB Output is correct
37 Correct 56 ms 21072 KB Output is correct
38 Correct 49 ms 30180 KB Output is correct