oj.uz

Submission #411421

# Submission time Handle Problem Language Result Execution time Memory
411421 2021-05-25T09:34:05 Z alextodoran Traffic (IOI10_traffic) C++17
50 / 100
 54 ms 17548 KB 
/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

#include <bits/stdc++.h>
#include "traffic.h"

using namespace std;

typedef long long ll;

const int N_MAX = 100000;

int n;

int p[N_MAX];

int subSize[N_MAX];

vector <int> edges[N_MAX];
int parent[N_MAX];

void dfs (int u)
{
    subSize[u] = p[u];
    for(int v : edges[u])
        if(v != parent[u])
        {
            parent[v] = u;
            dfs(v);
            subSize[u] += subSize[v];
        }
}

int LocateCentre (int N, int P[], int X[], int Y[])
{
    n = N;
    for(int u = 0; u < n; u++)
        p[u] = P[u];
    for(int i = 0; i < n - 1; i++)
    {
        edges[X[i]].push_back(Y[i]);
        edges[Y[i]].push_back(X[i]);
    }
    parent[0] = -1;
    dfs(0);
    int best = INT_MAX;
    int answer = -1;
    for(int u = 0; u < n; u++)
    {
        int maxFlow = subSize[0] - subSize[u];
        for(int v : edges[u])
            if(v != parent[u])
                maxFlow = max(maxFlow, subSize[v]);
        if(maxFlow < best)
        {
            best = maxFlow;
            answer = u;
        }
    }
    return answer;
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2656 KB Output is correct
4 Correct 2 ms 2656 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2636 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2636 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 3 ms 2660 KB Output is correct
36 Correct 3 ms 2764 KB Output is correct
37 Correct 2 ms 2764 KB Output is correct
38 Correct 3 ms 2764 KB Output is correct
39 Correct 3 ms 2796 KB Output is correct
40 Correct 3 ms 2764 KB Output is correct
41 Correct 3 ms 2796 KB Output is correct
42 Correct 2 ms 2764 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2656 KB Output is correct
45 Correct 2 ms 2636 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2656 KB Output is correct
4 Correct 2 ms 2656 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2636 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2636 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 3 ms 2660 KB Output is correct
36 Correct 3 ms 2764 KB Output is correct
37 Correct 2 ms 2764 KB Output is correct
38 Correct 3 ms 2764 KB Output is correct
39 Correct 3 ms 2796 KB Output is correct
40 Correct 3 ms 2764 KB Output is correct
41 Correct 3 ms 2796 KB Output is correct
42 Correct 2 ms 2764 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2656 KB Output is correct
45 Correct 2 ms 2636 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 2 ms 2636 KB Output is correct
49 Correct 2 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2636 KB Output is correct
52 Correct 2 ms 2660 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Correct 2 ms 2636 KB Output is correct
55 Correct 2 ms 2636 KB Output is correct
56 Correct 2 ms 2636 KB Output is correct
57 Correct 2 ms 2656 KB Output is correct
58 Correct 2 ms 2636 KB Output is correct
59 Correct 2 ms 2636 KB Output is correct
60 Correct 2 ms 2636 KB Output is correct
61 Correct 2 ms 2672 KB Output is correct
62 Correct 2 ms 2636 KB Output is correct
63 Correct 2 ms 2636 KB Output is correct
64 Correct 2 ms 2636 KB Output is correct
65 Correct 2 ms 2636 KB Output is correct
66 Correct 2 ms 2652 KB Output is correct
67 Correct 2 ms 2636 KB Output is correct
68 Correct 33 ms 10052 KB Output is correct
69 Correct 51 ms 17548 KB Output is correct
70 Correct 2 ms 2636 KB Output is correct
71 Incorrect 54 ms 7360 KB Output isn't correct
72 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2656 KB Output is correct
4 Correct 2 ms 2656 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2636 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2636 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 3 ms 2660 KB Output is correct
36 Correct 3 ms 2764 KB Output is correct
37 Correct 2 ms 2764 KB Output is correct
38 Correct 3 ms 2764 KB Output is correct
39 Correct 3 ms 2796 KB Output is correct
40 Correct 3 ms 2764 KB Output is correct
41 Correct 3 ms 2796 KB Output is correct
42 Correct 2 ms 2764 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2656 KB Output is correct
45 Correct 2 ms 2636 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 2 ms 2636 KB Output is correct
49 Correct 2 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2636 KB Output is correct
52 Correct 2 ms 2636 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Correct 2 ms 2636 KB Output is correct
55 Correct 2 ms 2656 KB Output is correct
56 Correct 2 ms 2636 KB Output is correct
57 Correct 2 ms 2636 KB Output is correct
58 Correct 2 ms 2636 KB Output is correct
59 Correct 2 ms 2636 KB Output is correct
60 Correct 2 ms 2636 KB Output is correct
61 Correct 2 ms 2636 KB Output is correct
62 Correct 2 ms 2664 KB Output is correct
63 Correct 2 ms 2564 KB Output is correct
64 Correct 2 ms 2636 KB Output is correct
65 Correct 2 ms 2636 KB Output is correct
66 Correct 2 ms 2636 KB Output is correct
67 Correct 2 ms 2636 KB Output is correct
68 Correct 2 ms 2636 KB Output is correct
69 Correct 2 ms 2652 KB Output is correct
70 Correct 2 ms 2636 KB Output is correct
71 Correct 2 ms 2636 KB Output is correct
72 Correct 2 ms 2652 KB Output is correct
73 Correct 2 ms 2636 KB Output is correct
74 Correct 3 ms 2636 KB Output is correct
75 Correct 2 ms 2636 KB Output is correct
76 Correct 2 ms 2704 KB Output is correct
77 Correct 3 ms 2636 KB Output is correct
78 Correct 2 ms 2636 KB Output is correct
79 Correct 3 ms 2664 KB Output is correct
80 Correct 2 ms 2636 KB Output is correct
81 Correct 2 ms 2636 KB Output is correct
82 Correct 2 ms 2636 KB Output is correct
83 Correct 2 ms 2668 KB Output is correct
84 Correct 2 ms 2636 KB Output is correct
85 Correct 2 ms 2636 KB Output is correct
86 Correct 2 ms 2636 KB Output is correct
87 Correct 3 ms 2668 KB Output is correct
88 Correct 2 ms 2636 KB Output is correct
89 Correct 2 ms 2636 KB Output is correct
90 Correct 2 ms 2636 KB Output is correct
91 Correct 3 ms 2636 KB Output is correct
92 Correct 2 ms 2636 KB Output is correct
93 Correct 2 ms 2636 KB Output is correct
94 Correct 3 ms 2636 KB Output is correct
95 Correct 3 ms 2764 KB Output is correct
96 Correct 3 ms 2636 KB Output is correct
97 Correct 2 ms 2636 KB Output is correct
98 Correct 2 ms 2640 KB Output is correct
99 Correct 2 ms 2640 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2656 KB Output is correct
4 Correct 2 ms 2656 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 2 ms 2636 KB Output is correct
12 Correct 2 ms 2636 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 2 ms 2636 KB Output is correct
15 Correct 2 ms 2636 KB Output is correct
16 Correct 2 ms 2636 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 2 ms 2636 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 2 ms 2636 KB Output is correct
23 Correct 2 ms 2636 KB Output is correct
24 Correct 2 ms 2636 KB Output is correct
25 Correct 2 ms 2636 KB Output is correct
26 Correct 2 ms 2636 KB Output is correct
27 Correct 2 ms 2636 KB Output is correct
28 Correct 2 ms 2636 KB Output is correct
29 Correct 2 ms 2636 KB Output is correct
30 Correct 2 ms 2636 KB Output is correct
31 Correct 2 ms 2636 KB Output is correct
32 Correct 2 ms 2636 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2636 KB Output is correct
35 Correct 3 ms 2660 KB Output is correct
36 Correct 3 ms 2764 KB Output is correct
37 Correct 2 ms 2764 KB Output is correct
38 Correct 3 ms 2764 KB Output is correct
39 Correct 3 ms 2796 KB Output is correct
40 Correct 3 ms 2764 KB Output is correct
41 Correct 3 ms 2796 KB Output is correct
42 Correct 2 ms 2764 KB Output is correct
43 Correct 2 ms 2636 KB Output is correct
44 Correct 2 ms 2656 KB Output is correct
45 Correct 2 ms 2636 KB Output is correct
46 Correct 2 ms 2636 KB Output is correct
47 Correct 2 ms 2636 KB Output is correct
48 Correct 2 ms 2636 KB Output is correct
49 Correct 2 ms 2636 KB Output is correct
50 Correct 2 ms 2636 KB Output is correct
51 Correct 2 ms 2636 KB Output is correct
52 Correct 2 ms 2660 KB Output is correct
53 Correct 2 ms 2636 KB Output is correct
54 Correct 2 ms 2636 KB Output is correct
55 Correct 2 ms 2636 KB Output is correct
56 Correct 2 ms 2636 KB Output is correct
57 Correct 2 ms 2656 KB Output is correct
58 Correct 2 ms 2636 KB Output is correct
59 Correct 2 ms 2636 KB Output is correct
60 Correct 2 ms 2636 KB Output is correct
61 Correct 2 ms 2672 KB Output is correct
62 Correct 2 ms 2636 KB Output is correct
63 Correct 2 ms 2636 KB Output is correct
64 Correct 2 ms 2636 KB Output is correct
65 Correct 2 ms 2636 KB Output is correct
66 Correct 2 ms 2652 KB Output is correct
67 Correct 2 ms 2636 KB Output is correct
68 Correct 33 ms 10052 KB Output is correct
69 Correct 51 ms 17548 KB Output is correct
70 Correct 2 ms 2636 KB Output is correct
71 Incorrect 54 ms 7360 KB Output isn't correct
72 Halted 0 ms 0 KB -