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Submission #569730

# Submission time Handle Problem Language Result Execution time Memory
569730 2022-05-27T16:42:51 Z ryangohca Swapping Cities (APIO20_swap) C++17
30 / 100
 1060 ms 28608 KB 
#include "swap.h"

#include <bits/stdc++.h>
using namespace std;
int p[100001], pweight[100001][20], st[100001], en[100001], lineWeight[100001], twok[100001][20];
void init(int N){
    iota(p, p+N, 0);
    iota(st, st+N, 0);
    iota(en, en+N, 0);
    fill(lineWeight, lineWeight+N, 2e9);
    memset(twok, -1, sizeof twok);
    memset(pweight, -1, sizeof pweight);
}
int fs(int x){
    if (p[x] == x) return x;
    return p[x] = fs(p[x]);
}
void ms(int x, int y, int w){
    int px = fs(x), py = fs(y);
    if (px == py){
        st[px] = en[px] = -1;
        lineWeight[px] = min(lineWeight[px], w);
        return;
    }
    p[py] = px; // px -> py
    //cout << px << ' ' << py << ' ' << w << endl;
    twok[py][0] = px;
    pweight[py][0] = w;
    if (st[px] != -1 && st[py] != -1){
        if ((st[px] == x || en[px] == x) && (st[py] == y || en[py] == y)){
            st[px] = (st[px] == x ? en[px] : st[px]);
            en[px] = (st[py] == y ? en[py] : st[py]);
        } else {
            st[px] = en[px] = -1;
            lineWeight[px] = min(lineWeight[px], w);
        }
    } else if (st[px] != -1){
        st[px] = en[px] = -1;
      	lineWeight[px] = w;
    } else {
        lineWeight[px] = min(lineWeight[px], lineWeight[py]);
    }
}
void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
    init(N);
    vector<tuple<int, int, int>> edges;
    for (int i = 0; i < M; i++){
        edges.push_back({W[i], U[i], V[i]});
    }
    sort(edges.begin(), edges.end());
    for (auto [w, a, b] : edges){
        ms(a, b, w);
    }
    for (int i = 1; i <= 19; i++){
        for (int j = 0; j < N; j++){
            if (twok[j][i-1] != -1){
                twok[j][i] = twok[twok[j][i-1]][i-1];
                pweight[j][i] = max(pweight[j][i-1], pweight[twok[j][i-1]][i-1]);
            }
        }
    }
}
bool isOkay(int mid, int X, int Y){
    for (int i = 19; i >= 0; i--){
        if (twok[X][i] != -1 && pweight[X][i] <= mid) X = twok[X][i];
        if (twok[Y][i] != -1 && pweight[Y][i] <= mid) Y = twok[Y][i];
    }
    if (X != Y) return false;
    return lineWeight[X] != -1 && lineWeight[X] <= mid;
}
int getMinimumFuelCapacity(int X, int Y) {
    int mini = 0, maxi = 1e9+10;
    while (maxi - mini > 1){
        int mid = (maxi + mini) / 2;
        if (isOkay(mid, X, Y)) maxi = mid;
        else mini = mid;
    }
    return (maxi==1e9+10?-1:maxi);
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 7 ms 15964 KB Output is correct
6 Correct 7 ms 15956 KB Output is correct
7 Correct 9 ms 15972 KB Output is correct
8 Correct 8 ms 15956 KB Output is correct
9 Correct 52 ms 20720 KB Output is correct
10 Correct 61 ms 21316 KB Output is correct
11 Correct 58 ms 21260 KB Output is correct
12 Correct 63 ms 21444 KB Output is correct
13 Correct 87 ms 21432 KB Output is correct
14 Correct 99 ms 20796 KB Output is correct
15 Correct 549 ms 22952 KB Output is correct
16 Correct 547 ms 22768 KB Output is correct
17 Correct 591 ms 23004 KB Output is correct
18 Correct 1060 ms 23000 KB Output is correct
19 Correct 366 ms 20132 KB Output is correct
20 Correct 562 ms 22876 KB Output is correct
21 Correct 540 ms 22916 KB Output is correct
22 Correct 571 ms 23104 KB Output is correct
23 Correct 955 ms 23292 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 463 ms 22788 KB Output is correct
4 Correct 473 ms 23388 KB Output is correct
5 Correct 462 ms 23464 KB Output is correct
6 Correct 434 ms 23372 KB Output is correct
7 Correct 481 ms 23492 KB Output is correct
8 Correct 516 ms 23268 KB Output is correct
9 Correct 437 ms 23364 KB Output is correct
10 Correct 480 ms 23248 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 7 ms 15964 KB Output is correct
6 Correct 7 ms 15956 KB Output is correct
7 Correct 9 ms 15972 KB Output is correct
8 Correct 8 ms 15956 KB Output is correct
9 Correct 7 ms 15964 KB Output is correct
10 Correct 8 ms 16044 KB Output is correct
11 Correct 7 ms 15956 KB Output is correct
12 Correct 10 ms 15956 KB Output is correct
13 Correct 8 ms 15932 KB Output is correct
14 Correct 8 ms 15956 KB Output is correct
15 Correct 9 ms 15952 KB Output is correct
16 Correct 8 ms 15956 KB Output is correct
17 Correct 8 ms 15956 KB Output is correct
18 Correct 8 ms 15956 KB Output is correct
19 Correct 8 ms 15956 KB Output is correct
20 Correct 7 ms 15956 KB Output is correct
21 Correct 7 ms 15956 KB Output is correct
22 Correct 7 ms 16084 KB Output is correct
23 Correct 7 ms 15940 KB Output is correct
24 Correct 8 ms 16084 KB Output is correct
25 Correct 8 ms 16084 KB Output is correct
26 Correct 8 ms 16016 KB Output is correct
27 Correct 7 ms 15956 KB Output is correct
28 Correct 10 ms 16068 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15964 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 7 ms 15956 KB Output is correct
4 Correct 8 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 7 ms 15964 KB Output is correct
7 Correct 7 ms 15956 KB Output is correct
8 Correct 9 ms 15972 KB Output is correct
9 Correct 8 ms 15956 KB Output is correct
10 Correct 52 ms 20720 KB Output is correct
11 Correct 61 ms 21316 KB Output is correct
12 Correct 58 ms 21260 KB Output is correct
13 Correct 63 ms 21444 KB Output is correct
14 Correct 87 ms 21432 KB Output is correct
15 Correct 8 ms 16044 KB Output is correct
16 Correct 7 ms 15956 KB Output is correct
17 Correct 10 ms 15956 KB Output is correct
18 Correct 8 ms 15932 KB Output is correct
19 Correct 8 ms 15956 KB Output is correct
20 Correct 9 ms 15952 KB Output is correct
21 Correct 8 ms 15956 KB Output is correct
22 Correct 8 ms 15956 KB Output is correct
23 Correct 8 ms 15956 KB Output is correct
24 Correct 8 ms 15956 KB Output is correct
25 Correct 7 ms 15956 KB Output is correct
26 Correct 7 ms 15956 KB Output is correct
27 Correct 7 ms 16084 KB Output is correct
28 Correct 7 ms 15940 KB Output is correct
29 Correct 8 ms 16084 KB Output is correct
30 Correct 8 ms 16084 KB Output is correct
31 Correct 8 ms 16016 KB Output is correct
32 Correct 7 ms 15956 KB Output is correct
33 Correct 10 ms 16068 KB Output is correct
34 Correct 14 ms 17020 KB Output is correct
35 Correct 65 ms 23352 KB Output is correct
36 Correct 62 ms 23348 KB Output is correct
37 Correct 66 ms 23356 KB Output is correct
38 Correct 74 ms 23212 KB Output is correct
39 Correct 64 ms 23236 KB Output is correct
40 Correct 62 ms 22724 KB Output is correct
41 Correct 67 ms 23540 KB Output is correct
42 Correct 67 ms 23364 KB Output is correct
43 Correct 84 ms 23364 KB Output is correct
44 Correct 92 ms 23552 KB Output is correct
45 Correct 99 ms 26944 KB Output is correct
46 Correct 63 ms 23348 KB Output is correct
47 Correct 71 ms 23336 KB Output is correct
48 Correct 82 ms 23724 KB Output is correct
49 Correct 67 ms 25564 KB Output is correct
50 Correct 68 ms 22824 KB Output is correct
51 Correct 84 ms 24324 KB Output is correct
52 Correct 88 ms 27840 KB Output is correct
53 Incorrect 107 ms 28608 KB Output isn't correct
54 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 7 ms 15964 KB Output is correct
6 Correct 7 ms 15956 KB Output is correct
7 Correct 9 ms 15972 KB Output is correct
8 Correct 8 ms 15956 KB Output is correct
9 Correct 52 ms 20720 KB Output is correct
10 Correct 61 ms 21316 KB Output is correct
11 Correct 58 ms 21260 KB Output is correct
12 Correct 63 ms 21444 KB Output is correct
13 Correct 87 ms 21432 KB Output is correct
14 Correct 99 ms 20796 KB Output is correct
15 Correct 549 ms 22952 KB Output is correct
16 Correct 547 ms 22768 KB Output is correct
17 Correct 591 ms 23004 KB Output is correct
18 Correct 1060 ms 23000 KB Output is correct
19 Correct 463 ms 22788 KB Output is correct
20 Correct 473 ms 23388 KB Output is correct
21 Correct 462 ms 23464 KB Output is correct
22 Correct 434 ms 23372 KB Output is correct
23 Correct 481 ms 23492 KB Output is correct
24 Correct 516 ms 23268 KB Output is correct
25 Correct 437 ms 23364 KB Output is correct
26 Correct 480 ms 23248 KB Output is correct
27 Correct 8 ms 16044 KB Output is correct
28 Correct 7 ms 15956 KB Output is correct
29 Correct 10 ms 15956 KB Output is correct
30 Correct 8 ms 15932 KB Output is correct
31 Correct 8 ms 15956 KB Output is correct
32 Correct 9 ms 15952 KB Output is correct
33 Correct 8 ms 15956 KB Output is correct
34 Correct 8 ms 15956 KB Output is correct
35 Correct 8 ms 15956 KB Output is correct
36 Correct 14 ms 17020 KB Output is correct
37 Correct 65 ms 23352 KB Output is correct
38 Correct 62 ms 23348 KB Output is correct
39 Correct 66 ms 23356 KB Output is correct
40 Correct 74 ms 23212 KB Output is correct
41 Correct 64 ms 23236 KB Output is correct
42 Correct 62 ms 22724 KB Output is correct
43 Correct 67 ms 23540 KB Output is correct
44 Correct 67 ms 23364 KB Output is correct
45 Correct 84 ms 23364 KB Output is correct
46 Correct 92 ms 23552 KB Output is correct
47 Correct 63 ms 17312 KB Output is correct
48 Correct 574 ms 27212 KB Output is correct
49 Incorrect 539 ms 27188 KB Output isn't correct
50 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15964 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 7 ms 15956 KB Output is correct
4 Correct 8 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 7 ms 15964 KB Output is correct
7 Correct 7 ms 15956 KB Output is correct
8 Correct 9 ms 15972 KB Output is correct
9 Correct 8 ms 15956 KB Output is correct
10 Correct 52 ms 20720 KB Output is correct
11 Correct 61 ms 21316 KB Output is correct
12 Correct 58 ms 21260 KB Output is correct
13 Correct 63 ms 21444 KB Output is correct
14 Correct 87 ms 21432 KB Output is correct
15 Correct 99 ms 20796 KB Output is correct
16 Correct 549 ms 22952 KB Output is correct
17 Correct 547 ms 22768 KB Output is correct
18 Correct 591 ms 23004 KB Output is correct
19 Correct 1060 ms 23000 KB Output is correct
20 Correct 463 ms 22788 KB Output is correct
21 Correct 473 ms 23388 KB Output is correct
22 Correct 462 ms 23464 KB Output is correct
23 Correct 434 ms 23372 KB Output is correct
24 Correct 481 ms 23492 KB Output is correct
25 Correct 516 ms 23268 KB Output is correct
26 Correct 437 ms 23364 KB Output is correct
27 Correct 480 ms 23248 KB Output is correct
28 Correct 8 ms 16044 KB Output is correct
29 Correct 7 ms 15956 KB Output is correct
30 Correct 10 ms 15956 KB Output is correct
31 Correct 8 ms 15932 KB Output is correct
32 Correct 8 ms 15956 KB Output is correct
33 Correct 9 ms 15952 KB Output is correct
34 Correct 8 ms 15956 KB Output is correct
35 Correct 8 ms 15956 KB Output is correct
36 Correct 8 ms 15956 KB Output is correct
37 Correct 14 ms 17020 KB Output is correct
38 Correct 65 ms 23352 KB Output is correct
39 Correct 62 ms 23348 KB Output is correct
40 Correct 66 ms 23356 KB Output is correct
41 Correct 74 ms 23212 KB Output is correct
42 Correct 64 ms 23236 KB Output is correct
43 Correct 62 ms 22724 KB Output is correct
44 Correct 67 ms 23540 KB Output is correct
45 Correct 67 ms 23364 KB Output is correct
46 Correct 84 ms 23364 KB Output is correct
47 Correct 92 ms 23552 KB Output is correct
48 Correct 63 ms 17312 KB Output is correct
49 Correct 574 ms 27212 KB Output is correct
50 Incorrect 539 ms 27188 KB Output isn't correct
51 Halted 0 ms 0 KB -