oj.uz

Submission #951579

# Submission time Handle Problem Language Result Execution time Memory
951579 2024-03-22T07:02:26 Z qwe1rt1yuiop1 Reconstruction Project (JOI22_reconstruction) C++17
7 / 100
 5000 ms 7692 KB 
#include <bits/stdc++.h>
#define int long long
// using ll = long long;
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;

vector<int> dsu, sz;
int f(int x) { return x == dsu[x] ? x : dsu[x] = f(dsu[x]); }
void un(int a, int b)
{
    a = f(a), b = f(b);
    if (a == b)
        return;
    if (sz[a] < sz[b])
        swap(a, b);
    dsu[b] = a, sz[a] += sz[b];
}

void solve()
{
    int n, m;
    cin >> n >> m;
    vector<array<int, 3>> e(m);

    int flag = 1;
    for (auto &i : e)
    {
        cin >> i[1] >> i[2] >> i[0], --i[1], --i[2];
        flag &= i[1] + 1 == i[2];
    }
    sort(all(e));

    /*
        if (flag)
        {
            vector<vector<int>> v(n);
            for (auto [w, a, b] : e0)
                v[a].emplace_back(w);
            for (auto &i : v)
                sort(i.begin(), i.end());

            vector<array<int, 3>> op;
            for (auto i : v)

            int q;
            cin >> q;
            vector<int> queries(q);
            for (int &i : queries)
                cin >> i;
            vector<int> ans(q + 1, 0), tmp(q + 1, 0);
            for (auto i : v)
            {
                int p = 0;
                for (int j : i)
                {

                }
            }
        }
    */

    int q, pt = 0;
    cin >> q;
    while (q--)
    {
        int x;
        cin >> x;
        sz.assign(n, 1), dsu = sz;
        for (int i = 0; i < n; ++i)
            dsu[i] = i;

        while (pt < m && e[pt][0] <= x)
            ++pt;
        int l = pt - 1, r = pt;

        int ans = 0;
        while (sz[f(0)] < n)
        {
            int nxt = -1, flag = 0;
            if (0 <= l)
                nxt = l, flag = 0;
            if (nxt == -1 || r < m && abs(e[nxt][0] - x) > abs(e[r][0] - x))
                nxt = r, flag = 1;
            if (flag)
                ++r;
            else
                --l;
            // cout << nxt << ' ';
            
            if (f(e[nxt][2]) != f(e[nxt][1]))
            {
                un(e[nxt][2], e[nxt][1]);
                ans += abs(x - e[nxt][0]);
            }
        }
        cout << ans << '\n';
    }
}

/*
5 10
1 2 8
1 3 13
1 4 5
1 5 11
1 5 3
2 3 7
2 4 15
3 4 6
3 5 6
4 5 2
6
3
6
8
10
13
17
*/

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    solve();

    return 0;
}

Compilation message

reconstruction.cpp: In function 'void solve()':
reconstruction.cpp:83:36: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   83 |             if (nxt == -1 || r < m && abs(e[nxt][0] - x) > abs(e[r][0] - x))
      |                              ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 396 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 396 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 30 ms 2816 KB Output is correct
21 Correct 35 ms 2652 KB Output is correct
22 Correct 32 ms 2652 KB Output is correct
23 Correct 30 ms 2648 KB Output is correct
24 Correct 27 ms 2652 KB Output is correct
25 Correct 27 ms 2652 KB Output is correct
26 Correct 27 ms 2812 KB Output is correct
27 Correct 27 ms 2652 KB Output is correct
28 Correct 29 ms 2652 KB Output is correct
29 Correct 32 ms 2648 KB Output is correct
30 Correct 27 ms 2792 KB Output is correct
31 Correct 30 ms 2808 KB Output is correct
32 Correct 27 ms 2652 KB Output is correct
33 Correct 27 ms 2652 KB Output is correct
34 Correct 30 ms 2652 KB Output is correct
35 Correct 27 ms 2652 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Execution timed out 5063 ms 3856 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 396 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Execution timed out 5073 ms 7692 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 396 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 30 ms 2816 KB Output is correct
21 Correct 35 ms 2652 KB Output is correct
22 Correct 32 ms 2652 KB Output is correct
23 Correct 30 ms 2648 KB Output is correct
24 Correct 27 ms 2652 KB Output is correct
25 Correct 27 ms 2652 KB Output is correct
26 Correct 27 ms 2812 KB Output is correct
27 Correct 27 ms 2652 KB Output is correct
28 Correct 29 ms 2652 KB Output is correct
29 Correct 32 ms 2648 KB Output is correct
30 Correct 27 ms 2792 KB Output is correct
31 Correct 30 ms 2808 KB Output is correct
32 Correct 27 ms 2652 KB Output is correct
33 Correct 27 ms 2652 KB Output is correct
34 Correct 30 ms 2652 KB Output is correct
35 Correct 27 ms 2652 KB Output is correct
36 Correct 625 ms 2896 KB Output is correct
37 Execution timed out 5054 ms 3108 KB Time limit exceeded
38 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 420 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 396 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 30 ms 2816 KB Output is correct
21 Correct 35 ms 2652 KB Output is correct
22 Correct 32 ms 2652 KB Output is correct
23 Correct 30 ms 2648 KB Output is correct
24 Correct 27 ms 2652 KB Output is correct
25 Correct 27 ms 2652 KB Output is correct
26 Correct 27 ms 2812 KB Output is correct
27 Correct 27 ms 2652 KB Output is correct
28 Correct 29 ms 2652 KB Output is correct
29 Correct 32 ms 2648 KB Output is correct
30 Correct 27 ms 2792 KB Output is correct
31 Correct 30 ms 2808 KB Output is correct
32 Correct 27 ms 2652 KB Output is correct
33 Correct 27 ms 2652 KB Output is correct
34 Correct 30 ms 2652 KB Output is correct
35 Correct 27 ms 2652 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Execution timed out 5063 ms 3856 KB Time limit exceeded
40 Halted 0 ms 0 KB -