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Submission #672629

# Submission time Handle Problem Language Result Execution time Memory
672629 2022-12-17T04:19:01 Z Hanksburger Swapping Cities (APIO20_swap) C++17
100 / 100
 161 ms 17228 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
int deg[100005], par[100005], sz[100005], w1[100005], w2[100005];
vector<pair<int, pair<int, int> > > edge;
int findPar(int x)
{
    return (par[x]==x)?x:findPar(par[x]);
}
void init(int n, int m, vector<int> u, vector<int> v, vector<int> w)
{
//    cout << "init\n";
    for (int i=0; i<m; i++)
        edge.push_back({w[i], {u[i], v[i]}});
    sort(edge.begin(), edge.end());
    for (int i=0; i<n; i++)
    {
        par[i]=i;
        sz[i]=1;
        w1[i]=w2[i]=2e9;
    }
    for (int i=0; i<m; i++)
    {
        int x=edge[i].second.first, y=edge[i].second.second, z=edge[i].first;
        bool bridge=(deg[x]>=2 || deg[y]>=2);
        deg[x]++;
        deg[y]++;
        x=findPar(x);
        y=findPar(y);
        if (x==y)
        {
            w2[y]=min(w2[y], z);
            continue;
        }
        if (sz[x]>sz[y])
            swap(x, y);
        par[x]=y;
//        cout << "par[" << x << "]=" << y << '\n';
        sz[y]+=sz[x];
        w1[x]=z;
        if (bridge || w2[x]<2e9)
            w2[y]=min(w2[y], z);
    }
//    cout << "initend\n";
}
int getMinimumFuelCapacity(int x, int y)
{
    int ans=0;
    while (x!=y)
    {
//        cout << "x y " << x << ' ' << y << '\n';
//        cout << "w1[x] w1[y] " << w1[x] << ' ' << w1[y] << '\n';
        if (w1[x]<w1[y])
        {
            ans=w1[x];
            x=par[x];
        }
        else
        {
            ans=w1[y];
            y=par[y];
        }
    }
    while (par[x]!=x)
    {
        if (w2[x]<2e9)
            return max(ans, w2[x]);
        ans=w1[x];
        x=par[x];
    }
    if (w2[x]<2e9)
        return max(ans, w2[x]);
    return -1;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 34 ms 4684 KB Output is correct
10 Correct 43 ms 5652 KB Output is correct
11 Correct 39 ms 5584 KB Output is correct
12 Correct 42 ms 5828 KB Output is correct
13 Correct 41 ms 5880 KB Output is correct
14 Correct 38 ms 4768 KB Output is correct
15 Correct 109 ms 7468 KB Output is correct
16 Correct 108 ms 7408 KB Output is correct
17 Correct 107 ms 7592 KB Output is correct
18 Correct 94 ms 7604 KB Output is correct
19 Correct 57 ms 4748 KB Output is correct
20 Correct 106 ms 8532 KB Output is correct
21 Correct 109 ms 8752 KB Output is correct
22 Correct 114 ms 9028 KB Output is correct
23 Correct 101 ms 9088 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 89 ms 8476 KB Output is correct
4 Correct 91 ms 8516 KB Output is correct
5 Correct 109 ms 8904 KB Output is correct
6 Correct 85 ms 8500 KB Output is correct
7 Correct 90 ms 8748 KB Output is correct
8 Correct 86 ms 8460 KB Output is correct
9 Correct 89 ms 8640 KB Output is correct
10 Correct 90 ms 8476 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 360 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 460 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 34 ms 4684 KB Output is correct
11 Correct 43 ms 5652 KB Output is correct
12 Correct 39 ms 5584 KB Output is correct
13 Correct 42 ms 5828 KB Output is correct
14 Correct 41 ms 5880 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 324 KB Output is correct
21 Correct 1 ms 320 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 324 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 360 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 6 ms 1428 KB Output is correct
35 Correct 43 ms 7720 KB Output is correct
36 Correct 40 ms 7744 KB Output is correct
37 Correct 40 ms 7616 KB Output is correct
38 Correct 39 ms 7600 KB Output is correct
39 Correct 40 ms 7584 KB Output is correct
40 Correct 36 ms 6980 KB Output is correct
41 Correct 43 ms 8000 KB Output is correct
42 Correct 41 ms 7728 KB Output is correct
43 Correct 39 ms 7740 KB Output is correct
44 Correct 43 ms 8000 KB Output is correct
45 Correct 66 ms 10200 KB Output is correct
46 Correct 50 ms 7732 KB Output is correct
47 Correct 43 ms 7752 KB Output is correct
48 Correct 44 ms 8244 KB Output is correct
49 Correct 59 ms 9920 KB Output is correct
50 Correct 51 ms 7124 KB Output is correct
51 Correct 55 ms 8936 KB Output is correct
52 Correct 78 ms 11396 KB Output is correct
53 Correct 80 ms 12364 KB Output is correct
54 Correct 91 ms 13392 KB Output is correct
55 Correct 39 ms 7744 KB Output is correct
56 Correct 74 ms 12028 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 34 ms 4684 KB Output is correct
10 Correct 43 ms 5652 KB Output is correct
11 Correct 39 ms 5584 KB Output is correct
12 Correct 42 ms 5828 KB Output is correct
13 Correct 41 ms 5880 KB Output is correct
14 Correct 38 ms 4768 KB Output is correct
15 Correct 109 ms 7468 KB Output is correct
16 Correct 108 ms 7408 KB Output is correct
17 Correct 107 ms 7592 KB Output is correct
18 Correct 94 ms 7604 KB Output is correct
19 Correct 89 ms 8476 KB Output is correct
20 Correct 91 ms 8516 KB Output is correct
21 Correct 109 ms 8904 KB Output is correct
22 Correct 85 ms 8500 KB Output is correct
23 Correct 90 ms 8748 KB Output is correct
24 Correct 86 ms 8460 KB Output is correct
25 Correct 89 ms 8640 KB Output is correct
26 Correct 90 ms 8476 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 324 KB Output is correct
33 Correct 1 ms 320 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 324 KB Output is correct
36 Correct 6 ms 1428 KB Output is correct
37 Correct 43 ms 7720 KB Output is correct
38 Correct 40 ms 7744 KB Output is correct
39 Correct 40 ms 7616 KB Output is correct
40 Correct 39 ms 7600 KB Output is correct
41 Correct 40 ms 7584 KB Output is correct
42 Correct 36 ms 6980 KB Output is correct
43 Correct 43 ms 8000 KB Output is correct
44 Correct 41 ms 7728 KB Output is correct
45 Correct 39 ms 7740 KB Output is correct
46 Correct 43 ms 8000 KB Output is correct
47 Correct 11 ms 1892 KB Output is correct
48 Correct 108 ms 12692 KB Output is correct
49 Correct 116 ms 12600 KB Output is correct
50 Correct 109 ms 12584 KB Output is correct
51 Correct 108 ms 12548 KB Output is correct
52 Correct 104 ms 12124 KB Output is correct
53 Correct 98 ms 11212 KB Output is correct
54 Correct 116 ms 13436 KB Output is correct
55 Correct 116 ms 12508 KB Output is correct
56 Correct 95 ms 12576 KB Output is correct
57 Correct 117 ms 13416 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 34 ms 4684 KB Output is correct
11 Correct 43 ms 5652 KB Output is correct
12 Correct 39 ms 5584 KB Output is correct
13 Correct 42 ms 5828 KB Output is correct
14 Correct 41 ms 5880 KB Output is correct
15 Correct 38 ms 4768 KB Output is correct
16 Correct 109 ms 7468 KB Output is correct
17 Correct 108 ms 7408 KB Output is correct
18 Correct 107 ms 7592 KB Output is correct
19 Correct 94 ms 7604 KB Output is correct
20 Correct 89 ms 8476 KB Output is correct
21 Correct 91 ms 8516 KB Output is correct
22 Correct 109 ms 8904 KB Output is correct
23 Correct 85 ms 8500 KB Output is correct
24 Correct 90 ms 8748 KB Output is correct
25 Correct 86 ms 8460 KB Output is correct
26 Correct 89 ms 8640 KB Output is correct
27 Correct 90 ms 8476 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 324 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 324 KB Output is correct
37 Correct 6 ms 1428 KB Output is correct
38 Correct 43 ms 7720 KB Output is correct
39 Correct 40 ms 7744 KB Output is correct
40 Correct 40 ms 7616 KB Output is correct
41 Correct 39 ms 7600 KB Output is correct
42 Correct 40 ms 7584 KB Output is correct
43 Correct 36 ms 6980 KB Output is correct
44 Correct 43 ms 8000 KB Output is correct
45 Correct 41 ms 7728 KB Output is correct
46 Correct 39 ms 7740 KB Output is correct
47 Correct 43 ms 8000 KB Output is correct
48 Correct 11 ms 1892 KB Output is correct
49 Correct 108 ms 12692 KB Output is correct
50 Correct 116 ms 12600 KB Output is correct
51 Correct 109 ms 12584 KB Output is correct
52 Correct 108 ms 12548 KB Output is correct
53 Correct 104 ms 12124 KB Output is correct
54 Correct 98 ms 11212 KB Output is correct
55 Correct 116 ms 13436 KB Output is correct
56 Correct 116 ms 12508 KB Output is correct
57 Correct 95 ms 12576 KB Output is correct
58 Correct 117 ms 13416 KB Output is correct
59 Correct 57 ms 4748 KB Output is correct
60 Correct 106 ms 8532 KB Output is correct
61 Correct 109 ms 8752 KB Output is correct
62 Correct 114 ms 9028 KB Output is correct
63 Correct 101 ms 9088 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 324 KB Output is correct
66 Correct 1 ms 460 KB Output is correct
67 Correct 1 ms 360 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 1 ms 460 KB Output is correct
74 Correct 66 ms 10200 KB Output is correct
75 Correct 50 ms 7732 KB Output is correct
76 Correct 43 ms 7752 KB Output is correct
77 Correct 44 ms 8244 KB Output is correct
78 Correct 59 ms 9920 KB Output is correct
79 Correct 51 ms 7124 KB Output is correct
80 Correct 55 ms 8936 KB Output is correct
81 Correct 78 ms 11396 KB Output is correct
82 Correct 80 ms 12364 KB Output is correct
83 Correct 91 ms 13392 KB Output is correct
84 Correct 39 ms 7744 KB Output is correct
85 Correct 74 ms 12028 KB Output is correct
86 Correct 38 ms 4720 KB Output is correct
87 Correct 113 ms 12604 KB Output is correct
88 Correct 108 ms 12580 KB Output is correct
89 Correct 100 ms 12640 KB Output is correct
90 Correct 139 ms 13756 KB Output is correct
91 Correct 120 ms 13464 KB Output is correct
92 Correct 112 ms 13752 KB Output is correct
93 Correct 136 ms 15928 KB Output is correct
94 Correct 138 ms 16784 KB Output is correct
95 Correct 161 ms 17228 KB Output is correct
96 Correct 100 ms 12736 KB Output is correct
97 Correct 124 ms 14904 KB Output is correct