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답안 #394250

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
394250 2021-04-26T08:52:24 Z MarcoMeijer 열대 식물원 (Tropical Garden) (IOI11_garden) C++14
100 / 100
 2916 ms 40468 KB 
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
using namespace std;

// macros
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> lll;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<ll> vll;
typedef vector<lll> vlll;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define RE(a,c) REP(a,0,c)
#define RE1(a,c) REP(a,1,c+1)
#define REI(a,b,c) REP(a,b,c+1)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define FOR(a,b) for(auto& a : b)
#define all(a) a.begin(), a.end()
#define INF 1e9
#define EPS 1e-9
#define pb push_back
#define popb pop_back
#define fi first
#define se second
#define sz size()

void count_routes(int N, int M, int P, int R[][2], int Q, int G[]) {
    // create graph
    vector<vi> adj; adj.resize(N);
    int m=0;
    vi U, V, ReverseEdge;
    RE(i,M) {
        U.push_back(R[i][0]); V.push_back(R[i][1]);
        adj[U[m]].push_back(m); ReverseEdge.push_back(m+1); m++;
        U.push_back(R[i][1]); V.push_back(R[i][0]);
        adj[U[m]].push_back(m); ReverseEdge.push_back(m-1); m++;
    }

    // fill next
    vi nxt;
    RE(i,m) {
        bool found = 0;
        FOR(v,adj[V[i]]) {
            if(v == ReverseEdge[i]) continue;
            nxt.push_back(v);
            found = 1;
            break;
        }
        if(!found)
            nxt.push_back(ReverseEdge[i]);
    }

    // fill prev
    vector<vi> prev; prev.resize(m);
    RE(i,m) prev[nxt[i]].pb(i);

    vector<bool> visited;
    visited.assign(m,0);
    vi funct; funct.assign(m,-1);
    vi functRes; functRes.assign(m,-1);

    // iniitial queue
    queue<int> q;
    FOR(x,adj[P]) {
        int y = ReverseEdge[x];
        q.push(y);
        visited[y] = 1;
        funct[y] = 1;
        functRes[y] = nxt[y];
    }

    // bfs
    while(!q.empty()) {
        int u=q.front(); q.pop();
        FOR(v,prev[u]) {
            if(visited[v]) continue;
            q.push(v);
            visited[v] = 1;
            funct[v] = funct[u] + 1;
            functRes[v] = functRes[u];
        }
    }

    map<int,int> Static;
    map<int,map<int,int>> Modulo;
    RE(j,N) {
        int u = adj[j][0];
        int times = 0;
        int cg = 0;
        while(functRes[u] != -1) {
            if(functRes[u] == u) {
                Modulo[funct[u]][cg]++;
                break;
            } else {
                if(functRes[functRes[u]] == u) {
                    int totFunct = funct[u] + funct[functRes[u]];
                    Modulo[totFunct][cg]++;
                    times++;
                    if(times == 2)
                        break;
                }
            }
            cg += funct[u];
            if(functRes[functRes[u]] != u && (functRes[u] == -1 || functRes[functRes[u]] != functRes[u])) {
                Static[cg]++;
            }
            u = functRes[u];
        }
    }

    RE(i,Q) {
        int ans = 0;
        auto it = Static.find(G[i]);
        if(it != Static.end()) ans += it->second;
        FOR(x,Modulo) {
            FOR(y,x.second) {
                if(G[i] < y.fi) continue;
                if((G[i]-y.fi)%x.fi == 0) ans += y.second;
            }
        }
        answer(ans);
    }
}

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 464 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 588 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 4 ms 1356 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 464 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 588 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 4 ms 1356 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 16 ms 5056 KB Output is correct
12 Correct 37 ms 9916 KB Output is correct
13 Correct 106 ms 26940 KB Output is correct
14 Correct 156 ms 28996 KB Output is correct
15 Correct 238 ms 29960 KB Output is correct
16 Correct 188 ms 24984 KB Output is correct
17 Correct 162 ms 23732 KB Output is correct
18 Correct 39 ms 9900 KB Output is correct
19 Correct 143 ms 29032 KB Output is correct
20 Correct 225 ms 29972 KB Output is correct
21 Correct 192 ms 24984 KB Output is correct
22 Correct 163 ms 23556 KB Output is correct
23 Correct 150 ms 31120 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 464 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 588 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 4 ms 1356 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 16 ms 5056 KB Output is correct
12 Correct 37 ms 9916 KB Output is correct
13 Correct 106 ms 26940 KB Output is correct
14 Correct 156 ms 28996 KB Output is correct
15 Correct 238 ms 29960 KB Output is correct
16 Correct 188 ms 24984 KB Output is correct
17 Correct 162 ms 23732 KB Output is correct
18 Correct 39 ms 9900 KB Output is correct
19 Correct 143 ms 29032 KB Output is correct
20 Correct 225 ms 29972 KB Output is correct
21 Correct 192 ms 24984 KB Output is correct
22 Correct 163 ms 23556 KB Output is correct
23 Correct 150 ms 31120 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 42 ms 5056 KB Output is correct
26 Correct 42 ms 9912 KB Output is correct
27 Correct 2742 ms 27152 KB Output is correct
28 Correct 155 ms 29076 KB Output is correct
29 Correct 223 ms 30156 KB Output is correct
30 Correct 237 ms 26512 KB Output is correct
31 Correct 184 ms 25280 KB Output is correct
32 Correct 41 ms 10576 KB Output is correct
33 Correct 146 ms 30732 KB Output is correct
34 Correct 211 ms 31852 KB Output is correct
35 Correct 205 ms 26564 KB Output is correct
36 Correct 160 ms 25180 KB Output is correct
37 Correct 174 ms 32996 KB Output is correct
38 Correct 2916 ms 40468 KB Output is correct