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답안 #49784

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
49784 2018-06-03T06:28:35 Z gs13105 열대 식물원 (Tropical Garden) (IOI11_garden) C++17
49 / 100
 63 ms 12948 KB 
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <tuple>
#include <iterator>

using namespace std;

void answer(int x);

const int MAXN = 150000;
const int MAXN2 = MAXN * 2;

int arr[MAXN2 + 10];
int dis[2][MAXN2 + 10];
bool chk[2][MAXN2 + 10];

void f(int x, int p)
{
    assert(!chk[p % 2][x]);
    chk[p % 2][x] = 1;
    if(arr[x] == p)
    {
        assert(!dis[p % 2][x]);
        dis[p % 2][x] = 1;
        return;
    }

    if(!chk[p % 2][arr[x]])
        f(arr[x], p);

    assert(!dis[p % 2][x]);
    if(dis[p % 2][arr[x]])
        dis[p % 2][x] = dis[p % 2][arr[x]] + 1;
}

int mem1[MAXN + 10];
int mem2[MAXN + 10];
int sum[2][MAXN2 + 10];

void count_routes(int N, int M, int P, int R[][2], int Q, int G[])
{
    memset(mem1, -1, sizeof mem1);
    memset(mem2, -1, sizeof mem2);
    memset(arr, -1, sizeof arr);
    for(int i = 0; i < M; i++)
    {
        int x = R[i][0];
        int y = R[i][1];

        if(mem1[x] == -1)
            mem1[x] = y;
        else if(mem2[x] == -1)
            mem2[x] = y;

        if(mem1[y] == -1)
            mem1[y] = x;
        else if(mem2[y] == -1)
            mem2[y] = x;
    }

    for(int i = 0; i < N; i++)
    {
        assert(mem1[i] != -1);
        if(mem1[mem1[i]] == i && mem2[mem1[i]] != -1)
            arr[2 * i] = 2 * mem1[i] + 1;
        else
            arr[2 * i] = 2 * mem1[i];

        if(mem2[i] != -1)
        {
            if(mem1[mem2[i]] == i && mem2[mem2[i]] != -1)
                arr[2 * i + 1] = 2 * mem2[i] + 1;
            else
                arr[2 * i + 1] = 2 * mem2[i];
        }
    }

    for(int r = 0; r < 2; r++)
        for(int i = 0; i < 2 * N; i++)
            if(!chk[r][i] && arr[i] != -1)
                f(i, 2 * P + r);

    for(int r = 0; r < 2; r++)
        for(int i = 0; i < N; i++)
            if(dis[r][2 * i])
                assert(dis[r][2 * i] <= 2 * N), sum[r][dis[r][2 * i]]++;

    for(int r = 0; r < 2; r++)
    {
        int c = dis[r][2 * P + r];
        if(!c)
            continue;

        for(int i = 1; i <= 2 * N; i++)
            if(i - c >= 1)
                sum[r][i] += sum[r][i - c];
    }

    assert(dis[0][2 * P] == 0 || dis[1][2 * P + 1] == 0 || dis[0][2 * P] == dis[1][2 * P + 1]);
    int c = max(dis[0][2 * P], dis[1][2 * P + 1]);
    for(int i = 0; i < Q; i++)
    {
        int t = G[i];
        if(t > 2 * N && c)
        {
            t -= ((t - 2 * N + c - 1) / c) * c;
            assert(t <= 2 * N && t + c > 2 * N);
        }

        if(t > 2 * N)
            answer(0);
        else
            answer(sum[0][t] + sum[1][t]);
    }
}

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2780 KB Output is correct
2 Correct 4 ms 2684 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2780 KB Output is correct
7 Correct 4 ms 2724 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 6 ms 2808 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2780 KB Output is correct
2 Correct 4 ms 2684 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2780 KB Output is correct
7 Correct 4 ms 2724 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 6 ms 2808 KB Output is correct
10 Correct 4 ms 2652 KB Output is correct
11 Correct 11 ms 3576 KB Output is correct
12 Correct 21 ms 4264 KB Output is correct
13 Correct 37 ms 10972 KB Output is correct
14 Correct 56 ms 7776 KB Output is correct
15 Correct 63 ms 8676 KB Output is correct
16 Correct 53 ms 6432 KB Output is correct
17 Correct 50 ms 5828 KB Output is correct
18 Correct 21 ms 3548 KB Output is correct
19 Correct 61 ms 8388 KB Output is correct
20 Correct 62 ms 8608 KB Output is correct
21 Correct 52 ms 5572 KB Output is correct
22 Runtime error 63 ms 12948 KB Execution killed with signal 11 (could be triggered by violating memory limits)
23 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2780 KB Output is correct
2 Correct 4 ms 2684 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2780 KB Output is correct
7 Correct 4 ms 2724 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 6 ms 2808 KB Output is correct
10 Correct 4 ms 2652 KB Output is correct
11 Correct 11 ms 3576 KB Output is correct
12 Correct 21 ms 4264 KB Output is correct
13 Correct 37 ms 10972 KB Output is correct
14 Correct 56 ms 7776 KB Output is correct
15 Correct 63 ms 8676 KB Output is correct
16 Correct 53 ms 6432 KB Output is correct
17 Correct 50 ms 5828 KB Output is correct
18 Correct 21 ms 3548 KB Output is correct
19 Correct 61 ms 8388 KB Output is correct
20 Correct 62 ms 8608 KB Output is correct
21 Correct 52 ms 5572 KB Output is correct
22 Runtime error 63 ms 12948 KB Execution killed with signal 11 (could be triggered by violating memory limits)
23 Halted 0 ms 0 KB -