oj.uz

Submission #770753

# Submission time Handle Problem Language Result Execution time Memory
770753 2023-07-01T21:18:03 Z adrilen Tropical Garden (IOI11_garden) C++17
69 / 100
 5000 ms 77552 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, 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;
    for (int y = 0; y < Q; y++)
    {
        int output = 0;

        for (int i = 0; i < n; i++)
        {
            pos = { i, 0 };
            for (int j = 0; j < bit; j++)
            {
                if (G[y] & (1 << j)) pos = jump[j][pos[0]][pos[1]];
            }
            // cout << i << " " << pos[0] << "\n";
            if (pos[0] == P) output++;
        }
        answer(output);
    }
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5588 KB Output is correct
2 Correct 3 ms 5588 KB Output is correct
3 Correct 3 ms 5716 KB Output is correct
4 Correct 2 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5716 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 4 ms 5844 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5588 KB Output is correct
2 Correct 3 ms 5588 KB Output is correct
3 Correct 3 ms 5716 KB Output is correct
4 Correct 2 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5716 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 4 ms 5844 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 12 ms 15996 KB Output is correct
12 Correct 22 ms 23764 KB Output is correct
13 Correct 36 ms 45864 KB Output is correct
14 Correct 65 ms 70476 KB Output is correct
15 Correct 64 ms 71324 KB Output is correct
16 Correct 51 ms 50564 KB Output is correct
17 Correct 44 ms 43764 KB Output is correct
18 Correct 22 ms 23752 KB Output is correct
19 Correct 63 ms 70476 KB Output is correct
20 Correct 73 ms 71324 KB Output is correct
21 Correct 50 ms 50508 KB Output is correct
22 Correct 47 ms 43796 KB Output is correct
23 Correct 73 ms 77552 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5588 KB Output is correct
2 Correct 3 ms 5588 KB Output is correct
3 Correct 3 ms 5716 KB Output is correct
4 Correct 2 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5716 KB Output is correct
7 Correct 3 ms 5204 KB Output is correct
8 Correct 3 ms 5716 KB Output is correct
9 Correct 4 ms 5844 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 12 ms 15996 KB Output is correct
12 Correct 22 ms 23764 KB Output is correct
13 Correct 36 ms 45864 KB Output is correct
14 Correct 65 ms 70476 KB Output is correct
15 Correct 64 ms 71324 KB Output is correct
16 Correct 51 ms 50564 KB Output is correct
17 Correct 44 ms 43764 KB Output is correct
18 Correct 22 ms 23752 KB Output is correct
19 Correct 63 ms 70476 KB Output is correct
20 Correct 73 ms 71324 KB Output is correct
21 Correct 50 ms 50508 KB Output is correct
22 Correct 47 ms 43796 KB Output is correct
23 Correct 73 ms 77552 KB Output is correct
24 Correct 9 ms 5204 KB Output is correct
25 Correct 2813 ms 16044 KB Output is correct
26 Execution timed out 5071 ms 23764 KB Time limit exceeded
27 Halted 0 ms 0 KB -