oj.uz

Submission #992336

# Submission time Handle Problem Language Result Execution time Memory
992336 2024-06-04T09:37:14 Z Sharky Island Hopping (JOI24_island) C++17
35 / 100
 7 ms 856 KB 
#include "island.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> p, done;
vector<pair<int, int>> e;
bool ok[301][301];

int find(int u) {
    return p[u] == u ? u : p[u] = find(p[u]);
}

bool merge(int u, int v, int f = 1) {
    int pu = find(u), pv = find(v);
    if (pu == pv) return false;
    if (f) {
        p[pv] = pu;
        e.emplace_back(u, v);
    }
    return true;
}

void solve(int N, int L) {
    p.resize(N + 1);
    done.assign(N + 1, 0);
    for (int i = 1; i <= N; i++) p[i] = i;
    for (int iter = 1; iter <= N - 1; iter++) {
        vector<pair<int, int>> t;
        for (int i = 1; i <= N; i++) {
            if (done[i]) continue;
            int x = query(i, iter);
            // cout << i << " " << iter << " " << x << '\n';
            if (x > i || !merge(i, x, 0)) done[i] = 1;
            else t.push_back({i, x});
        }
        for (auto& [x, y] : t) merge(x, y);
    }
    for (auto& [x, y] : e) {
        if (ok[x][y]) continue;
        ok[x][y] = ok[y][x] = 1;
        // cout << x << ' ' << y << '\n';
        answer(x, y);
    }
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 6 ms 452 KB Output is correct
6 Correct 5 ms 344 KB Output is correct
7 Correct 6 ms 600 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 6 ms 856 KB Output is correct
3 Correct 4 ms 452 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 3 ms 344 KB Output is correct
6 Correct 7 ms 600 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 6 ms 440 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 6 ms 448 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 5 ms 452 KB Output is correct
7 Correct 4 ms 600 KB Output is correct
8 Correct 5 ms 600 KB Output is correct
9 Correct 5 ms 600 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 6 ms 432 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 6 ms 444 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 6 ms 452 KB Output is correct
6 Correct 5 ms 344 KB Output is correct
7 Correct 6 ms 600 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 6 ms 440 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 6 ms 448 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 5 ms 452 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 5 ms 600 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Incorrect 6 ms 452 KB Wrong Answer [5]
20 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 6 ms 432 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 4 ms 344 KB Output is correct
8 Correct 6 ms 444 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Incorrect 5 ms 600 KB Wrong Answer [5]
14 Halted 0 ms 0 KB -

Subtask #8
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 6 ms 856 KB Output is correct
3 Correct 4 ms 452 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 3 ms 344 KB Output is correct
6 Correct 7 ms 600 KB Output is correct
7 Incorrect 3 ms 344 KB Wrong Answer [3]
8 Halted 0 ms 0 KB -