oj.uz

답안 #770759

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
770759 2023-07-01T21:33:23 Z adrilen 열대 식물원 (Tropical Garden) (IOI11_garden) C++17
69 / 100
 130 ms 87856 KB 
#include "garden.h"
#include "gardenlib.h"
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using arr = array<int, 2>;
using arrr = array<int, 3>;

constexpr int maxn = 1.5e5, maxg = 1e9, maxq = 2e3 + 5, bit = 32 - __builtin_clz(maxg), siz = 1 << bit;
int goal;

basic_string <int> adj[maxn];

// Jumping (1 << i) steps from each node, taking the best way or the second
// store whether we need to use the best or second best route
arr jump[bit][maxn][2] = { 0 };




void count_routes(int n, int m, int P, int R[][2], int Q, int G[])
{
    goal = P;

    for (int i = 0; i < m; i++)
    {
        adj[R[i][0]].push_back(R[i][1]);
        adj[R[i][1]].push_back(R[i][0]);
    }

    // Making the only way a second way if needed
    for (int i = 0; i < n; i++)
    {
        if (adj[i].size() == 1) adj[i].push_back(adj[i][0]);
    }


    for (int i = 0; i < n; i++)
    {
        for (int y = 0; y < 2; y++)
        {
            jump[0][i][y] = {adj[i][y], adj[adj[i][y]][0] == i};
        }
    }

    for (int b = 1; b < bit; b++)
    {
        for (int i = 0; i < n; i++)
        {
            for (int y = 0; y < 2; y++)
            {
                jump[b][i][y] = jump[b - 1][jump[b - 1][i][y][0]][jump[b - 1][i][y][1]];
            }
        }
    }

    arr pos;

    map<arr, int> pos_count[maxq];
    for (int i = 0; i < n; i++) pos_count[0][{i, 0}] = 1;

    int last = 0;
    int diff;


    for (int y = 0; y < Q; y++)     // 2e3
    {
        diff = G[y] - last;

        for (auto pa : pos_count[y])
        {
            pos = pa.first;
            for (int j = 0; j < bit; j++) // 30
            {
                if (diff & (1 << j)) pos = jump[j][pos[0]][pos[1]];
            }
            pos_count[y + 1][pos] += pa.second;
        }
        answer(pos_count[y + 1][{P, 0}] + pos_count[y + 1][{P, 1}]);
        last = G[y];
    }
}

Subtask #1
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5844 KB Output is correct
4 Correct 2 ms 5332 KB Output is correct
5 Correct 2 ms 5332 KB Output is correct
6 Correct 3 ms 5972 KB Output is correct
7 Correct 3 ms 5332 KB Output is correct
8 Correct 3 ms 5844 KB Output is correct
9 Correct 4 ms 5972 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5844 KB Output is correct
4 Correct 2 ms 5332 KB Output is correct
5 Correct 2 ms 5332 KB Output is correct
6 Correct 3 ms 5972 KB Output is correct
7 Correct 3 ms 5332 KB Output is correct
8 Correct 3 ms 5844 KB Output is correct
9 Correct 4 ms 5972 KB Output is correct
10 Correct 3 ms 5332 KB Output is correct
11 Correct 18 ms 18352 KB Output is correct
12 Correct 34 ms 26516 KB Output is correct
13 Correct 67 ms 56484 KB Output is correct
14 Correct 101 ms 79140 KB Output is correct
15 Correct 108 ms 80092 KB Output is correct
16 Correct 82 ms 56600 KB Output is correct
17 Correct 62 ms 48740 KB Output is correct
18 Correct 31 ms 26140 KB Output is correct
19 Correct 105 ms 79068 KB Output is correct
20 Correct 95 ms 80000 KB Output is correct
21 Correct 73 ms 56420 KB Output is correct
22 Correct 63 ms 48688 KB Output is correct
23 Correct 130 ms 87856 KB Output is correct

Subtask #3
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5716 KB Output is correct
2 Correct 3 ms 5844 KB Output is correct
3 Correct 3 ms 5844 KB Output is correct
4 Correct 2 ms 5332 KB Output is correct
5 Correct 2 ms 5332 KB Output is correct
6 Correct 3 ms 5972 KB Output is correct
7 Correct 3 ms 5332 KB Output is correct
8 Correct 3 ms 5844 KB Output is correct
9 Correct 4 ms 5972 KB Output is correct
10 Correct 3 ms 5332 KB Output is correct
11 Correct 18 ms 18352 KB Output is correct
12 Correct 34 ms 26516 KB Output is correct
13 Correct 67 ms 56484 KB Output is correct
14 Correct 101 ms 79140 KB Output is correct
15 Correct 108 ms 80092 KB Output is correct
16 Correct 82 ms 56600 KB Output is correct
17 Correct 62 ms 48740 KB Output is correct
18 Correct 31 ms 26140 KB Output is correct
19 Correct 105 ms 79068 KB Output is correct
20 Correct 95 ms 80000 KB Output is correct
21 Correct 73 ms 56420 KB Output is correct
22 Correct 63 ms 48688 KB Output is correct
23 Correct 130 ms 87856 KB Output is correct
24 Incorrect 35 ms 14832 KB Output isn't correct
25 Halted 0 ms 0 KB -