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Submission #597749

# Submission time Handle Problem Language Result Execution time Memory
597749 2022-07-16T19:13:58 Z Ozy Swapping Cities (APIO20_swap) C++17
100 / 100
 186 ms 22992 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for (int i = (a); i <= (b); i++)
#define repa(i,a,b) for (int i = (a); i >= (b); i--)
#define lli long long int
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "

#define MAX 100000
#define w first
#define u second.first
#define v second.second

struct x{
    lli padre;
    lli flag;
    lli prof;
    lli val;
    lli l;
    lli r;
};

lli dis[MAX+2];
lli n,m,a,b,res;
vector< pair<lli, pair<lli,lli> > >  orden;
x uf[MAX+2];

lli dfs(lli pos) {
    if (dis[pos] > 0) return dis[pos]+1;
    if (uf[pos].padre == pos) {
        dis[pos] = 1;
        return 2;
    }
    dis[pos] = dfs(uf[pos].padre);
    return dis[pos]+1;
}

void init(int N, int M,std::vector<int> U, std::vector<int> V, std::vector<int> W) {
    n = N;
    m = M;

    rep(i,0,m-1) orden.push_back({W[i], {U[i]+1,V[i]+1} });
    sort(orden.begin(), orden.end());

    rep(i,1,n) uf[i] = {i,0,1,0,i,i};

    for (auto act : orden) {

        a = uf[act.u].padre;
        while (a != uf[a].padre) a = uf[a].padre;
        b = uf[act.v].padre;
        while (b != uf[b].padre) b = uf[b].padre;

        if (a == b) {
            if (uf[a].flag) continue;
            uf[a].flag = act.w;
        }
        else {

            if (uf[b].prof > uf[a].prof) {
                swap(a,b);
                swap(act.u, act.v);
            }

            uf[b].val = act.w;
            uf[b].padre = a;
            if (uf[b].prof == uf[a].prof) uf[a].prof++;

            if (uf[a].flag) continue;

            if (uf[b].flag) uf[a].flag = act.w;
            else {

                if (uf[a].l == act.u && uf[b].l == act.v) uf[a].l = uf[b].r;
                else if (uf[a].l == act.u && uf[b].r == act.v) uf[a].l = uf[b].l;
                else if (uf[a].r == act.u && uf[b].l == act.v) uf[a].r = uf[b].r;
                else if (uf[a].r == act.u && uf[b].r == act.v) uf[a].r = uf[b].l;
                else {
                     uf[a].flag = act.w;
                }

            }


        }

    }

    rep(i,1,n) if (dis[i] == 0) {
        if (uf[i].padre == i) dis[i] = 1;
        else dis[i] = dfs(uf[i].padre);
    }
}

int getMinimumFuelCapacity(int X, int Y) {
    X++;
    Y++;

    if (dis[X] < dis[Y]) swap(X,Y);
    a = dis[X] - dis[Y];

    res = -1;
    rep(i,1,a) {
        res = max(res,uf[X].val);
        X = uf[X].padre;
    }

    while (X != Y) {
        res = max(res,uf[X].val);
        X = uf[X].padre;
        res = max(res,uf[Y].val);
        Y = uf[Y].padre;
    }

    while (uf[X].flag == 0) {
        res = max(res,uf[X].val);
        if (X != uf[X].padre) X = uf[X].padre;
        else return -1;
    }

    res = max(res,uf[X].flag);
    return res;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 452 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 38 ms 10044 KB Output is correct
10 Correct 45 ms 12120 KB Output is correct
11 Correct 55 ms 12008 KB Output is correct
12 Correct 50 ms 12716 KB Output is correct
13 Correct 50 ms 12724 KB Output is correct
14 Correct 43 ms 10416 KB Output is correct
15 Correct 114 ms 16204 KB Output is correct
16 Correct 121 ms 16024 KB Output is correct
17 Correct 140 ms 16580 KB Output is correct
18 Correct 108 ms 16628 KB Output is correct
19 Correct 58 ms 7504 KB Output is correct
20 Correct 114 ms 17300 KB Output is correct
21 Correct 153 ms 17232 KB Output is correct
22 Correct 119 ms 18072 KB Output is correct
23 Correct 106 ms 18056 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 116 ms 14732 KB Output is correct
4 Correct 98 ms 15084 KB Output is correct
5 Correct 102 ms 15064 KB Output is correct
6 Correct 111 ms 15152 KB Output is correct
7 Correct 95 ms 15112 KB Output is correct
8 Correct 94 ms 14696 KB Output is correct
9 Correct 105 ms 15032 KB Output is correct
10 Correct 93 ms 14788 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 452 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 452 KB Output is correct
11 Correct 1 ms 448 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 456 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 452 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 452 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 448 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 468 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 452 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 38 ms 10044 KB Output is correct
11 Correct 45 ms 12120 KB Output is correct
12 Correct 55 ms 12008 KB Output is correct
13 Correct 50 ms 12716 KB Output is correct
14 Correct 50 ms 12724 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 448 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 320 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 456 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 452 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 452 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 448 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 6 ms 2000 KB Output is correct
35 Correct 45 ms 12372 KB Output is correct
36 Correct 50 ms 12344 KB Output is correct
37 Correct 58 ms 12340 KB Output is correct
38 Correct 53 ms 12220 KB Output is correct
39 Correct 48 ms 12192 KB Output is correct
40 Correct 41 ms 11152 KB Output is correct
41 Correct 52 ms 12604 KB Output is correct
42 Correct 46 ms 12424 KB Output is correct
43 Correct 57 ms 12328 KB Output is correct
44 Correct 78 ms 12708 KB Output is correct
45 Correct 91 ms 14672 KB Output is correct
46 Correct 45 ms 12344 KB Output is correct
47 Correct 46 ms 12340 KB Output is correct
48 Correct 49 ms 12936 KB Output is correct
49 Correct 63 ms 13016 KB Output is correct
50 Correct 51 ms 8744 KB Output is correct
51 Correct 81 ms 12664 KB Output is correct
52 Correct 86 ms 16880 KB Output is correct
53 Correct 86 ms 17988 KB Output is correct
54 Correct 134 ms 19124 KB Output is correct
55 Correct 52 ms 12332 KB Output is correct
56 Correct 89 ms 17552 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 452 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 38 ms 10044 KB Output is correct
10 Correct 45 ms 12120 KB Output is correct
11 Correct 55 ms 12008 KB Output is correct
12 Correct 50 ms 12716 KB Output is correct
13 Correct 50 ms 12724 KB Output is correct
14 Correct 43 ms 10416 KB Output is correct
15 Correct 114 ms 16204 KB Output is correct
16 Correct 121 ms 16024 KB Output is correct
17 Correct 140 ms 16580 KB Output is correct
18 Correct 108 ms 16628 KB Output is correct
19 Correct 116 ms 14732 KB Output is correct
20 Correct 98 ms 15084 KB Output is correct
21 Correct 102 ms 15064 KB Output is correct
22 Correct 111 ms 15152 KB Output is correct
23 Correct 95 ms 15112 KB Output is correct
24 Correct 94 ms 14696 KB Output is correct
25 Correct 105 ms 15032 KB Output is correct
26 Correct 93 ms 14788 KB Output is correct
27 Correct 1 ms 452 KB Output is correct
28 Correct 1 ms 448 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 320 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 456 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 2 ms 452 KB Output is correct
36 Correct 6 ms 2000 KB Output is correct
37 Correct 45 ms 12372 KB Output is correct
38 Correct 50 ms 12344 KB Output is correct
39 Correct 58 ms 12340 KB Output is correct
40 Correct 53 ms 12220 KB Output is correct
41 Correct 48 ms 12192 KB Output is correct
42 Correct 41 ms 11152 KB Output is correct
43 Correct 52 ms 12604 KB Output is correct
44 Correct 46 ms 12424 KB Output is correct
45 Correct 57 ms 12328 KB Output is correct
46 Correct 78 ms 12708 KB Output is correct
47 Correct 12 ms 2384 KB Output is correct
48 Correct 122 ms 17172 KB Output is correct
49 Correct 149 ms 17164 KB Output is correct
50 Correct 136 ms 17068 KB Output is correct
51 Correct 127 ms 17036 KB Output is correct
52 Correct 129 ms 16424 KB Output is correct
53 Correct 137 ms 14252 KB Output is correct
54 Correct 129 ms 18056 KB Output is correct
55 Correct 126 ms 17180 KB Output is correct
56 Correct 125 ms 17128 KB Output is correct
57 Correct 132 ms 18056 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 452 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 38 ms 10044 KB Output is correct
11 Correct 45 ms 12120 KB Output is correct
12 Correct 55 ms 12008 KB Output is correct
13 Correct 50 ms 12716 KB Output is correct
14 Correct 50 ms 12724 KB Output is correct
15 Correct 43 ms 10416 KB Output is correct
16 Correct 114 ms 16204 KB Output is correct
17 Correct 121 ms 16024 KB Output is correct
18 Correct 140 ms 16580 KB Output is correct
19 Correct 108 ms 16628 KB Output is correct
20 Correct 116 ms 14732 KB Output is correct
21 Correct 98 ms 15084 KB Output is correct
22 Correct 102 ms 15064 KB Output is correct
23 Correct 111 ms 15152 KB Output is correct
24 Correct 95 ms 15112 KB Output is correct
25 Correct 94 ms 14696 KB Output is correct
26 Correct 105 ms 15032 KB Output is correct
27 Correct 93 ms 14788 KB Output is correct
28 Correct 1 ms 452 KB Output is correct
29 Correct 1 ms 448 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 320 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 2 ms 452 KB Output is correct
37 Correct 6 ms 2000 KB Output is correct
38 Correct 45 ms 12372 KB Output is correct
39 Correct 50 ms 12344 KB Output is correct
40 Correct 58 ms 12340 KB Output is correct
41 Correct 53 ms 12220 KB Output is correct
42 Correct 48 ms 12192 KB Output is correct
43 Correct 41 ms 11152 KB Output is correct
44 Correct 52 ms 12604 KB Output is correct
45 Correct 46 ms 12424 KB Output is correct
46 Correct 57 ms 12328 KB Output is correct
47 Correct 78 ms 12708 KB Output is correct
48 Correct 12 ms 2384 KB Output is correct
49 Correct 122 ms 17172 KB Output is correct
50 Correct 149 ms 17164 KB Output is correct
51 Correct 136 ms 17068 KB Output is correct
52 Correct 127 ms 17036 KB Output is correct
53 Correct 129 ms 16424 KB Output is correct
54 Correct 137 ms 14252 KB Output is correct
55 Correct 129 ms 18056 KB Output is correct
56 Correct 126 ms 17180 KB Output is correct
57 Correct 125 ms 17128 KB Output is correct
58 Correct 132 ms 18056 KB Output is correct
59 Correct 58 ms 7504 KB Output is correct
60 Correct 114 ms 17300 KB Output is correct
61 Correct 153 ms 17232 KB Output is correct
62 Correct 119 ms 18072 KB Output is correct
63 Correct 106 ms 18056 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 452 KB Output is correct
67 Correct 1 ms 468 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 1 ms 448 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 91 ms 14672 KB Output is correct
75 Correct 45 ms 12344 KB Output is correct
76 Correct 46 ms 12340 KB Output is correct
77 Correct 49 ms 12936 KB Output is correct
78 Correct 63 ms 13016 KB Output is correct
79 Correct 51 ms 8744 KB Output is correct
80 Correct 81 ms 12664 KB Output is correct
81 Correct 86 ms 16880 KB Output is correct
82 Correct 86 ms 17988 KB Output is correct
83 Correct 134 ms 19124 KB Output is correct
84 Correct 52 ms 12332 KB Output is correct
85 Correct 89 ms 17552 KB Output is correct
86 Correct 41 ms 6412 KB Output is correct
87 Correct 130 ms 17068 KB Output is correct
88 Correct 143 ms 17076 KB Output is correct
89 Correct 113 ms 16916 KB Output is correct
90 Correct 153 ms 16820 KB Output is correct
91 Correct 161 ms 16492 KB Output is correct
92 Correct 119 ms 17328 KB Output is correct
93 Correct 186 ms 21328 KB Output is correct
94 Correct 172 ms 22412 KB Output is correct
95 Correct 178 ms 22992 KB Output is correct
96 Correct 108 ms 17172 KB Output is correct
97 Correct 140 ms 20028 KB Output is correct