oj.uz

답안 #548514

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
548514 2022-04-13T16:59:37 Z Lobo 열대 식물원 (Tropical Garden) (IOI11_garden) C++17
69 / 100
 2559 ms 115028 KB 
#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>
using namespace std;

const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

const int maxn = 4e6+10;

int n, mark[maxn], p[maxn], ordc[maxn], nx[maxn], disp[maxn], szc[maxn];
vector<pair<int,int>> g[maxn];

void dfsc(int v, int ini) {
    p[v] = v;
    disp[v] = 0;
    if(nx[v] == ini) {
        szc[mark[v]] = ordc[v]+1;
        return;
    }
    ordc[nx[v]] = ordc[v]+1;
    dfsc(nx[v],ini);
}

void dfs(int v, int cur) {

    mark[v] = cur;
    if(mark[nx[v]] == cur) {
        //temos um ciclo
        ordc[nx[v]] = 0;
        dfsc(nx[v],nx[v]);
        return;
    }
    else if(mark[nx[v]] == -1){
        dfs(nx[v],cur);
    }

    if(p[v] == -1) {
        disp[v] = disp[nx[v]]+1;
        p[v] = p[nx[v]];
    }
}


void count_routes(int32_t N, int32_t M, int32_t P, int32_t R[][2], int32_t Q, int32_t G[]) {
    n = N;
    for(int i = 0; i < M; i++) {
        g[R[i][0]].pb(mp(i,R[i][1]));
        g[R[i][1]].pb(mp(i,R[i][0]));
    }
    for(int i = 0; i < n; i++)
        sort(all(g[i]));
    for(int i = 0; i < n; i++) {
        nx[i] = g[i][0].sc;
        if(g[nx[i]][0].sc == i)
            nx[i]+= n;

        if(g[i].size() == 1)
            nx[i+n] = g[i][0].sc;
        else
            nx[i+n] = g[i][1].sc;
        if(g[nx[i+n]][0].sc == i)
            nx[i+n]+= n;
        // cout << i << " " << nx[i] << " " << nx[i+n] << endl;
    }

    for(int i = 0; i < 2*n; i++) {
        // cout << i << " " << nx[i] << endl;
        p[i] = -1;
        mark[i] = -1;
        ordc[i] = -1;
    }

    for(int i = 0; i < 2*n; i++) {
        if(mark[i] == -1) {
            dfs(i,i);
        }
    }

    // for(int i = 0; i < 2*n; i++) {
    //     cout << i << " " << p[i] << " " << disp[i] << endl;
    // }

    for(int j = 0; j < Q; j++) {
        int ans = 0;
        for(int i = 0; i < n; i++) {
            int k = G[j];
            int v = i;
            if(P != p[P]) {
                if(p[v] == p[P] && k == disp[v]-disp[P])
                    ans++; 
            }
            else {
                if(mark[p[v]] == mark[P] && k >= disp[v] && (ordc[p[v]]+k-disp[v])%szc[mark[p[v]]] == ordc[P])
                    ans++;

                //vai k pra frente de 
            }

            P+= n;
            if(P != p[P]) {
                if(p[v] == p[P] && k == disp[v]-disp[P])
                    ans++; 
            }
            else {
                if(mark[p[v]] == mark[P] && k >= disp[v] && (ordc[p[v]]+k-disp[v])%szc[mark[p[v]]] == ordc[p[P]])
                    ans++;

                //vai k pra frente de 
            }
            P-= n;
        }
        answer(ans);
    }
}

// int32_t main() {
//     ios::sync_with_stdio(false); cin.tie(0);

//     freopen("in.in", "r", stdin);
//     // freopen("out.out", "w", stdout);
    
//     int N, M, P;
//     cin >> N >> M >> P;
//     int R[M][2];
//     for(int i = 0; i < M; i++) {
//         cin >> R[i][0] >> R[i][1];
//     }
//     int Q; cin >> Q;
//     int G[Q];
//     for(int i = 0; i < Q; i++) {
//         cin >> G[i];
//     }

//     count_routes(N,M,P,R,Q,G);

// }

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 94280 KB Output is correct
2 Correct 45 ms 94336 KB Output is correct
3 Correct 44 ms 94364 KB Output is correct
4 Correct 44 ms 94280 KB Output is correct
5 Correct 44 ms 94260 KB Output is correct
6 Correct 44 ms 94548 KB Output is correct
7 Correct 44 ms 94224 KB Output is correct
8 Correct 44 ms 94400 KB Output is correct
9 Correct 47 ms 94796 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 94280 KB Output is correct
2 Correct 45 ms 94336 KB Output is correct
3 Correct 44 ms 94364 KB Output is correct
4 Correct 44 ms 94280 KB Output is correct
5 Correct 44 ms 94260 KB Output is correct
6 Correct 44 ms 94548 KB Output is correct
7 Correct 44 ms 94224 KB Output is correct
8 Correct 44 ms 94400 KB Output is correct
9 Correct 47 ms 94796 KB Output is correct
10 Correct 44 ms 94248 KB Output is correct
11 Correct 54 ms 97596 KB Output is correct
12 Correct 65 ms 100636 KB Output is correct
13 Correct 73 ms 111080 KB Output is correct
14 Correct 118 ms 113340 KB Output is correct
15 Correct 118 ms 113836 KB Output is correct
16 Correct 102 ms 110056 KB Output is correct
17 Correct 107 ms 108736 KB Output is correct
18 Correct 64 ms 100416 KB Output is correct
19 Correct 125 ms 113356 KB Output is correct
20 Correct 120 ms 114048 KB Output is correct
21 Correct 104 ms 109612 KB Output is correct
22 Correct 103 ms 108392 KB Output is correct
23 Correct 114 ms 115028 KB Output is correct

Subtask #3
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 94280 KB Output is correct
2 Correct 45 ms 94336 KB Output is correct
3 Correct 44 ms 94364 KB Output is correct
4 Correct 44 ms 94280 KB Output is correct
5 Correct 44 ms 94260 KB Output is correct
6 Correct 44 ms 94548 KB Output is correct
7 Correct 44 ms 94224 KB Output is correct
8 Correct 44 ms 94400 KB Output is correct
9 Correct 47 ms 94796 KB Output is correct
10 Correct 44 ms 94248 KB Output is correct
11 Correct 54 ms 97596 KB Output is correct
12 Correct 65 ms 100636 KB Output is correct
13 Correct 73 ms 111080 KB Output is correct
14 Correct 118 ms 113340 KB Output is correct
15 Correct 118 ms 113836 KB Output is correct
16 Correct 102 ms 110056 KB Output is correct
17 Correct 107 ms 108736 KB Output is correct
18 Correct 64 ms 100416 KB Output is correct
19 Correct 125 ms 113356 KB Output is correct
20 Correct 120 ms 114048 KB Output is correct
21 Correct 104 ms 109612 KB Output is correct
22 Correct 103 ms 108392 KB Output is correct
23 Correct 114 ms 115028 KB Output is correct
24 Correct 47 ms 94244 KB Output is correct
25 Correct 150 ms 97692 KB Output is correct
26 Correct 199 ms 100644 KB Output is correct
27 Correct 2305 ms 111064 KB Output is correct
28 Correct 1102 ms 113424 KB Output is correct
29 Correct 2559 ms 113992 KB Output is correct
30 Correct 1449 ms 110036 KB Output is correct
31 Correct 1535 ms 108776 KB Output is correct
32 Incorrect 282 ms 100424 KB Output isn't correct
33 Halted 0 ms 0 KB -