oj.uz

Submission #49765

# Submission time Handle Problem Language Result Execution time Memory
49765 2018-06-02T21:19:30 Z gs13105 Tropical Garden (IOI11_garden) C++17
49 / 100
 65 ms 11088 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>
#include "gardenlib.h"

using namespace std;

const int MAXN = 150000;

int arr[2 * MAXN + 10];
int dis[2][2 * MAXN + 10];
bool chk[2][2 * MAXN + 10];

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

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

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

int mem[MAXN + 10][2];
int sum[2][2 * MAXN + 10];

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

        if(mem[x][0] == -1)
            mem[x][0] = y;
        else if(mem[x][1] == -1)
            mem[x][1] = y;

        if(mem[y][0] == -1)
            mem[y][0] = x;
        else if(mem[y][1] == -1)
            mem[y][1] = x;
    }

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

        if(mem[i][1] != -1)
        {
            if(mem[mem[i][1]][0] == i && mem[mem[i][1]][1] != -1)
                arr[2 * i + 1] = 2 * mem[i][1] + 1;
            else
                arr[2 * i + 1] = 2 * mem[i][1];
        }
    }

    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])
                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(c && i - c >= 1)
                sum[r][i] += sum[r][i - c];
    }

    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;

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

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2808 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 11 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 6 ms 2812 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2808 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 11 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 6 ms 2812 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 11 ms 3576 KB Output is correct
12 Correct 23 ms 4252 KB Output is correct
13 Correct 37 ms 11088 KB Output is correct
14 Correct 55 ms 7772 KB Output is correct
15 Correct 57 ms 8696 KB Output is correct
16 Correct 50 ms 6436 KB Output is correct
17 Correct 48 ms 5856 KB Output is correct
18 Correct 20 ms 3544 KB Output is correct
19 Correct 65 ms 8340 KB Output is correct
20 Correct 60 ms 8684 KB Output is correct
21 Correct 51 ms 5600 KB Output is correct
22 Incorrect 43 ms 6444 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2808 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2780 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 11 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 6 ms 2812 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 11 ms 3576 KB Output is correct
12 Correct 23 ms 4252 KB Output is correct
13 Correct 37 ms 11088 KB Output is correct
14 Correct 55 ms 7772 KB Output is correct
15 Correct 57 ms 8696 KB Output is correct
16 Correct 50 ms 6436 KB Output is correct
17 Correct 48 ms 5856 KB Output is correct
18 Correct 20 ms 3544 KB Output is correct
19 Correct 65 ms 8340 KB Output is correct
20 Correct 60 ms 8684 KB Output is correct
21 Correct 51 ms 5600 KB Output is correct
22 Incorrect 43 ms 6444 KB Output isn't correct
23 Halted 0 ms 0 KB -