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Submission #427759

# Submission time Handle Problem Language Result Execution time Memory
427759 2021-06-14T21:40:53 Z haxorman Traffic (IOI10_traffic) C++14
50 / 100
 484 ms 156900 KB 
#include "traffic.h"
#include "bits/stdc++.h"
using namespace std;

const int mxN = 1e6 + 7;

int n, p[mxN];
long long dp[mxN], tot;
vector<int> graph[mxN];

void dfs(int u, int par) {
   dp[u] = p[u];

   for (auto v : graph[u]) {
      if (v != par) {
         dfs(v, u);
         dp[u] += dp[v];
      }
   }
}

int LocateCentre(int N, int P[], int S[], int D[]) {
   n = N;

   for (int i = 0; i < n; ++i) {
      p[i] = P[i];
      tot += p[i];
   }

   for (int i = 0; i < n - 1; ++i) {
      graph[S[i]].push_back(D[i]);
      graph[D[i]].push_back(S[i]);
   }

   dfs(0, -1);

   long long res = INT_MAX, city = 0;
   for (int u = 0; u < n; ++u) {
      if (res > max(tot - dp[u], dp[u] - p[u])) {
         res = max(tot - dp[u], dp[u] - p[u]);
         city = u;
      }
   }
   return city;
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB Output is correct
2 Correct 15 ms 23756 KB Output is correct
3 Correct 13 ms 23724 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 13 ms 23756 KB Output is correct
6 Correct 14 ms 23756 KB Output is correct
7 Correct 13 ms 23724 KB Output is correct
8 Correct 16 ms 23756 KB Output is correct
9 Correct 14 ms 23740 KB Output is correct
10 Correct 15 ms 23756 KB Output is correct
11 Correct 13 ms 23808 KB Output is correct
12 Correct 14 ms 23816 KB Output is correct
13 Correct 17 ms 23756 KB Output is correct
14 Correct 15 ms 23756 KB Output is correct
15 Correct 14 ms 23756 KB Output is correct
16 Correct 14 ms 23884 KB Output is correct
17 Correct 17 ms 23732 KB Output is correct
18 Correct 16 ms 23752 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 15 ms 23816 KB Output is correct
21 Correct 14 ms 23756 KB Output is correct
22 Correct 14 ms 23828 KB Output is correct
23 Correct 16 ms 23756 KB Output is correct
24 Correct 15 ms 23732 KB Output is correct
25 Correct 14 ms 23736 KB Output is correct
26 Correct 14 ms 23772 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 17 ms 23756 KB Output is correct
29 Correct 14 ms 23756 KB Output is correct
30 Correct 14 ms 23756 KB Output is correct
31 Correct 15 ms 23884 KB Output is correct
32 Correct 14 ms 23884 KB Output is correct
33 Correct 14 ms 23816 KB Output is correct
34 Correct 14 ms 23788 KB Output is correct
35 Correct 14 ms 23852 KB Output is correct
36 Correct 15 ms 23900 KB Output is correct
37 Correct 16 ms 23816 KB Output is correct
38 Correct 17 ms 23924 KB Output is correct
39 Correct 14 ms 23924 KB Output is correct
40 Correct 14 ms 23892 KB Output is correct
41 Correct 14 ms 23884 KB Output is correct
42 Correct 18 ms 23884 KB Output is correct
43 Correct 16 ms 23756 KB Output is correct
44 Correct 14 ms 23756 KB Output is correct
45 Correct 14 ms 23756 KB Output is correct
46 Correct 14 ms 23756 KB Output is correct
47 Correct 14 ms 23844 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB Output is correct
2 Correct 15 ms 23756 KB Output is correct
3 Correct 13 ms 23724 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 13 ms 23756 KB Output is correct
6 Correct 14 ms 23756 KB Output is correct
7 Correct 13 ms 23724 KB Output is correct
8 Correct 16 ms 23756 KB Output is correct
9 Correct 14 ms 23740 KB Output is correct
10 Correct 15 ms 23756 KB Output is correct
11 Correct 13 ms 23808 KB Output is correct
12 Correct 14 ms 23816 KB Output is correct
13 Correct 17 ms 23756 KB Output is correct
14 Correct 15 ms 23756 KB Output is correct
15 Correct 14 ms 23756 KB Output is correct
16 Correct 14 ms 23884 KB Output is correct
17 Correct 17 ms 23732 KB Output is correct
18 Correct 16 ms 23752 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 15 ms 23816 KB Output is correct
21 Correct 14 ms 23756 KB Output is correct
22 Correct 14 ms 23828 KB Output is correct
23 Correct 16 ms 23756 KB Output is correct
24 Correct 15 ms 23732 KB Output is correct
25 Correct 14 ms 23736 KB Output is correct
26 Correct 14 ms 23772 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 17 ms 23756 KB Output is correct
29 Correct 14 ms 23756 KB Output is correct
30 Correct 14 ms 23756 KB Output is correct
31 Correct 15 ms 23884 KB Output is correct
32 Correct 14 ms 23884 KB Output is correct
33 Correct 14 ms 23816 KB Output is correct
34 Correct 14 ms 23788 KB Output is correct
35 Correct 14 ms 23852 KB Output is correct
36 Correct 15 ms 23900 KB Output is correct
37 Correct 16 ms 23816 KB Output is correct
38 Correct 17 ms 23924 KB Output is correct
39 Correct 14 ms 23924 KB Output is correct
40 Correct 14 ms 23892 KB Output is correct
41 Correct 14 ms 23884 KB Output is correct
42 Correct 18 ms 23884 KB Output is correct
43 Correct 16 ms 23756 KB Output is correct
44 Correct 14 ms 23756 KB Output is correct
45 Correct 14 ms 23756 KB Output is correct
46 Correct 14 ms 23756 KB Output is correct
47 Correct 14 ms 23844 KB Output is correct
48 Correct 13 ms 23756 KB Output is correct
49 Correct 14 ms 23816 KB Output is correct
50 Correct 14 ms 23756 KB Output is correct
51 Correct 16 ms 23752 KB Output is correct
52 Correct 16 ms 23920 KB Output is correct
53 Correct 14 ms 23720 KB Output is correct
54 Correct 13 ms 23756 KB Output is correct
55 Correct 14 ms 23756 KB Output is correct
56 Correct 14 ms 23760 KB Output is correct
57 Correct 14 ms 23748 KB Output is correct
58 Correct 13 ms 23756 KB Output is correct
59 Correct 15 ms 23756 KB Output is correct
60 Correct 14 ms 23756 KB Output is correct
61 Correct 14 ms 23708 KB Output is correct
62 Correct 14 ms 23756 KB Output is correct
63 Correct 13 ms 23744 KB Output is correct
64 Correct 15 ms 23756 KB Output is correct
65 Correct 13 ms 23700 KB Output is correct
66 Correct 15 ms 23756 KB Output is correct
67 Correct 15 ms 23816 KB Output is correct
68 Correct 38 ms 30496 KB Output is correct
69 Correct 89 ms 37004 KB Output is correct
70 Correct 15 ms 23756 KB Output is correct
71 Correct 109 ms 43728 KB Output is correct
72 Correct 110 ms 50368 KB Output is correct
73 Correct 135 ms 56992 KB Output is correct
74 Correct 158 ms 63740 KB Output is correct
75 Correct 218 ms 70256 KB Output is correct
76 Correct 206 ms 76992 KB Output is correct
77 Correct 232 ms 83576 KB Output is correct
78 Correct 310 ms 90308 KB Output is correct
79 Correct 281 ms 97076 KB Output is correct
80 Correct 303 ms 103584 KB Output is correct
81 Correct 14 ms 23756 KB Output is correct
82 Correct 332 ms 110308 KB Output is correct
83 Correct 351 ms 116852 KB Output is correct
84 Correct 383 ms 123680 KB Output is correct
85 Correct 395 ms 130136 KB Output is correct
86 Correct 420 ms 136884 KB Output is correct
87 Correct 449 ms 143428 KB Output is correct
88 Correct 471 ms 150212 KB Output is correct
89 Correct 484 ms 156900 KB Output is correct
90 Correct 14 ms 23804 KB Output is correct
91 Correct 14 ms 23756 KB Output is correct
92 Correct 14 ms 23712 KB Output is correct
93 Correct 14 ms 23812 KB Output is correct
94 Correct 15 ms 23788 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB Output is correct
2 Correct 15 ms 23756 KB Output is correct
3 Correct 13 ms 23724 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 13 ms 23756 KB Output is correct
6 Correct 14 ms 23756 KB Output is correct
7 Correct 13 ms 23724 KB Output is correct
8 Correct 16 ms 23756 KB Output is correct
9 Correct 14 ms 23740 KB Output is correct
10 Correct 15 ms 23756 KB Output is correct
11 Correct 13 ms 23808 KB Output is correct
12 Correct 14 ms 23816 KB Output is correct
13 Correct 17 ms 23756 KB Output is correct
14 Correct 15 ms 23756 KB Output is correct
15 Correct 14 ms 23756 KB Output is correct
16 Correct 14 ms 23884 KB Output is correct
17 Correct 17 ms 23732 KB Output is correct
18 Correct 16 ms 23752 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 15 ms 23816 KB Output is correct
21 Correct 14 ms 23756 KB Output is correct
22 Correct 14 ms 23828 KB Output is correct
23 Correct 16 ms 23756 KB Output is correct
24 Correct 15 ms 23732 KB Output is correct
25 Correct 14 ms 23736 KB Output is correct
26 Correct 14 ms 23772 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 17 ms 23756 KB Output is correct
29 Correct 14 ms 23756 KB Output is correct
30 Correct 14 ms 23756 KB Output is correct
31 Correct 15 ms 23884 KB Output is correct
32 Correct 14 ms 23884 KB Output is correct
33 Correct 14 ms 23816 KB Output is correct
34 Correct 14 ms 23788 KB Output is correct
35 Correct 14 ms 23852 KB Output is correct
36 Correct 15 ms 23900 KB Output is correct
37 Correct 16 ms 23816 KB Output is correct
38 Correct 17 ms 23924 KB Output is correct
39 Correct 14 ms 23924 KB Output is correct
40 Correct 14 ms 23892 KB Output is correct
41 Correct 14 ms 23884 KB Output is correct
42 Correct 18 ms 23884 KB Output is correct
43 Correct 16 ms 23756 KB Output is correct
44 Correct 14 ms 23756 KB Output is correct
45 Correct 14 ms 23756 KB Output is correct
46 Correct 14 ms 23756 KB Output is correct
47 Correct 14 ms 23844 KB Output is correct
48 Incorrect 14 ms 23740 KB Output isn't correct
49 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB Output is correct
2 Correct 15 ms 23756 KB Output is correct
3 Correct 13 ms 23724 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 13 ms 23756 KB Output is correct
6 Correct 14 ms 23756 KB Output is correct
7 Correct 13 ms 23724 KB Output is correct
8 Correct 16 ms 23756 KB Output is correct
9 Correct 14 ms 23740 KB Output is correct
10 Correct 15 ms 23756 KB Output is correct
11 Correct 13 ms 23808 KB Output is correct
12 Correct 14 ms 23816 KB Output is correct
13 Correct 17 ms 23756 KB Output is correct
14 Correct 15 ms 23756 KB Output is correct
15 Correct 14 ms 23756 KB Output is correct
16 Correct 14 ms 23884 KB Output is correct
17 Correct 17 ms 23732 KB Output is correct
18 Correct 16 ms 23752 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 15 ms 23816 KB Output is correct
21 Correct 14 ms 23756 KB Output is correct
22 Correct 14 ms 23828 KB Output is correct
23 Correct 16 ms 23756 KB Output is correct
24 Correct 15 ms 23732 KB Output is correct
25 Correct 14 ms 23736 KB Output is correct
26 Correct 14 ms 23772 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 17 ms 23756 KB Output is correct
29 Correct 14 ms 23756 KB Output is correct
30 Correct 14 ms 23756 KB Output is correct
31 Correct 15 ms 23884 KB Output is correct
32 Correct 14 ms 23884 KB Output is correct
33 Correct 14 ms 23816 KB Output is correct
34 Correct 14 ms 23788 KB Output is correct
35 Correct 14 ms 23852 KB Output is correct
36 Correct 15 ms 23900 KB Output is correct
37 Correct 16 ms 23816 KB Output is correct
38 Correct 17 ms 23924 KB Output is correct
39 Correct 14 ms 23924 KB Output is correct
40 Correct 14 ms 23892 KB Output is correct
41 Correct 14 ms 23884 KB Output is correct
42 Correct 18 ms 23884 KB Output is correct
43 Correct 16 ms 23756 KB Output is correct
44 Correct 14 ms 23756 KB Output is correct
45 Correct 14 ms 23756 KB Output is correct
46 Correct 14 ms 23756 KB Output is correct
47 Correct 14 ms 23844 KB Output is correct
48 Correct 13 ms 23756 KB Output is correct
49 Correct 14 ms 23816 KB Output is correct
50 Correct 14 ms 23756 KB Output is correct
51 Correct 16 ms 23752 KB Output is correct
52 Correct 16 ms 23920 KB Output is correct
53 Correct 14 ms 23720 KB Output is correct
54 Correct 13 ms 23756 KB Output is correct
55 Correct 14 ms 23756 KB Output is correct
56 Correct 14 ms 23760 KB Output is correct
57 Correct 14 ms 23748 KB Output is correct
58 Correct 13 ms 23756 KB Output is correct
59 Correct 15 ms 23756 KB Output is correct
60 Correct 14 ms 23756 KB Output is correct
61 Correct 14 ms 23708 KB Output is correct
62 Correct 14 ms 23756 KB Output is correct
63 Correct 13 ms 23744 KB Output is correct
64 Correct 15 ms 23756 KB Output is correct
65 Correct 13 ms 23700 KB Output is correct
66 Correct 15 ms 23756 KB Output is correct
67 Correct 15 ms 23816 KB Output is correct
68 Correct 38 ms 30496 KB Output is correct
69 Correct 89 ms 37004 KB Output is correct
70 Correct 15 ms 23756 KB Output is correct
71 Correct 109 ms 43728 KB Output is correct
72 Correct 110 ms 50368 KB Output is correct
73 Correct 135 ms 56992 KB Output is correct
74 Correct 158 ms 63740 KB Output is correct
75 Correct 218 ms 70256 KB Output is correct
76 Correct 206 ms 76992 KB Output is correct
77 Correct 232 ms 83576 KB Output is correct
78 Correct 310 ms 90308 KB Output is correct
79 Correct 281 ms 97076 KB Output is correct
80 Correct 303 ms 103584 KB Output is correct
81 Correct 14 ms 23756 KB Output is correct
82 Correct 332 ms 110308 KB Output is correct
83 Correct 351 ms 116852 KB Output is correct
84 Correct 383 ms 123680 KB Output is correct
85 Correct 395 ms 130136 KB Output is correct
86 Correct 420 ms 136884 KB Output is correct
87 Correct 449 ms 143428 KB Output is correct
88 Correct 471 ms 150212 KB Output is correct
89 Correct 484 ms 156900 KB Output is correct
90 Correct 14 ms 23804 KB Output is correct
91 Correct 14 ms 23756 KB Output is correct
92 Correct 14 ms 23712 KB Output is correct
93 Correct 14 ms 23812 KB Output is correct
94 Correct 15 ms 23788 KB Output is correct
95 Incorrect 14 ms 23740 KB Output isn't correct
96 Halted 0 ms 0 KB -