oj.uz

Submission #1060938

# Submission time Handle Problem Language Result Execution time Memory
1060938 2024-08-16T04:48:30 Z sleepntsheep Reconstruction Project (JOI22_reconstruction) C++17
7 / 100
 5000 ms 11324 KB 
#pragma GCC optimize("O3,unroll-loops")
#include <iostream>
#include <cstring>
#include <vector>
#include <algorithm>
#include <array>

using namespace std;
using ll = long long;

template <typename T, int sz>
using ar = array<T, sz>;

const int N = 505, M = 101000;

int n, m, q, ds[N];
ll mst;

ar<int, 3> e[M];

int ds_find(int i) {
    return (ds[i] < 0) ? i : (ds[i] = ds_find(ds[i]));
}

void ds_unite(int i, int j, int w) {
    i = ds_find(i);
    j = ds_find(j);
    if (i == j) return;
    mst += w;
    if (-ds[i] > -ds[j]) swap(i, j);
    ds[j] += ds[i];
    ds[i] = j;
}

int main() {
    scanf("%d%d", &n, &m);
    for (int i = 0; i < m; ++i)
        scanf("%d%d%d", &e[i][1], &e[i][2], &e[i][0]);
    sort(e, e+m);
    scanf("%d", &q);
    int k = 0;
    for (int x, i = 0; i < q; ++i) {
        scanf("%d", &x);

        memset(ds, -1, sizeof * ds * (n + 1));
        mst = 0;

        while (k < m && e[k][0] < x) ++k;
        int pl, pr;
        pr = k;
        pl = pr - 1;

        while (pl >= 0 or pr < m)
            if (pl == -1 or pr < m and e[pr][0] - x < x - e[pl][0])
                ds_unite(e[pr][1], e[pr][2], e[pr][0] - x), ++pr;
            else
                ds_unite(e[pl][1], e[pl][2], x - e[pl][0]), --pl;

        printf("%lld\n", mst);
    }

}

Compilation message

reconstruction.cpp: In function 'int main()':
reconstruction.cpp:54:36: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   54 |             if (pl == -1 or pr < m and e[pr][0] - x < x - e[pl][0])
reconstruction.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
reconstruction.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         scanf("%d%d%d", &e[i][1], &e[i][2], &e[i][0]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
reconstruction.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
reconstruction.cpp:43:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 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 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 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 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 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 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 30 ms 1372 KB Output is correct
21 Correct 31 ms 1372 KB Output is correct
22 Correct 32 ms 1368 KB Output is correct
23 Correct 32 ms 1368 KB Output is correct
24 Correct 32 ms 1368 KB Output is correct
25 Correct 30 ms 1368 KB Output is correct
26 Correct 35 ms 1372 KB Output is correct
27 Correct 30 ms 1612 KB Output is correct
28 Correct 33 ms 1372 KB Output is correct
29 Correct 33 ms 1368 KB Output is correct
30 Correct 30 ms 1372 KB Output is correct
31 Correct 33 ms 1420 KB Output is correct
32 Correct 32 ms 1404 KB Output is correct
33 Correct 38 ms 1372 KB Output is correct
34 Correct 32 ms 1576 KB Output is correct
35 Correct 34 ms 1368 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 600 KB Output is correct
4 Execution timed out 5043 ms 1700 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 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 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Execution timed out 5086 ms 11324 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 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 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 30 ms 1372 KB Output is correct
21 Correct 31 ms 1372 KB Output is correct
22 Correct 32 ms 1368 KB Output is correct
23 Correct 32 ms 1368 KB Output is correct
24 Correct 32 ms 1368 KB Output is correct
25 Correct 30 ms 1368 KB Output is correct
26 Correct 35 ms 1372 KB Output is correct
27 Correct 30 ms 1612 KB Output is correct
28 Correct 33 ms 1372 KB Output is correct
29 Correct 33 ms 1368 KB Output is correct
30 Correct 30 ms 1372 KB Output is correct
31 Correct 33 ms 1420 KB Output is correct
32 Correct 32 ms 1404 KB Output is correct
33 Correct 38 ms 1372 KB Output is correct
34 Correct 32 ms 1576 KB Output is correct
35 Correct 34 ms 1368 KB Output is correct
36 Execution timed out 5019 ms 1596 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 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 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 30 ms 1372 KB Output is correct
21 Correct 31 ms 1372 KB Output is correct
22 Correct 32 ms 1368 KB Output is correct
23 Correct 32 ms 1368 KB Output is correct
24 Correct 32 ms 1368 KB Output is correct
25 Correct 30 ms 1368 KB Output is correct
26 Correct 35 ms 1372 KB Output is correct
27 Correct 30 ms 1612 KB Output is correct
28 Correct 33 ms 1372 KB Output is correct
29 Correct 33 ms 1368 KB Output is correct
30 Correct 30 ms 1372 KB Output is correct
31 Correct 33 ms 1420 KB Output is correct
32 Correct 32 ms 1404 KB Output is correct
33 Correct 38 ms 1372 KB Output is correct
34 Correct 32 ms 1576 KB Output is correct
35 Correct 34 ms 1368 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 600 KB Output is correct
39 Execution timed out 5043 ms 1700 KB Time limit exceeded
40 Halted 0 ms 0 KB -