Submission #411809

# Submission time Handle Problem Language Result Execution time Memory
411809 2021-05-26T03:15:55 Z zwliew Traffic (IOI10_traffic) C++17
100 / 100
1259 ms 154956 KB
#include "traffic.h"
#include <algorithm>
#include <iostream>
#include <vector>
#include <array>

using namespace std;

vector<vector<int> > adj;
vector<int> dp;
array<int, 2> ans;
vector<int> cnt;
void dfs(int u, int p) {
   dp[u] = cnt[u];
   for (int v : adj[u]) {
      if (v != p) {
         dfs(v, u);
         dp[u] += dp[v];
      }
   }
}

void dfs2(int u, int p) {
   int cur = 0;
   for (int v : adj[u]) {
      cur = max(cur, dp[v]);
   }
   if (cur < ans[1]) {
      ans = {u, cur};
   }
   for (int v : adj[u]) {
      if (v == p) continue;
      dp[u] -= dp[v];
      dp[v] += dp[u];
      dfs2(v, u);
      dp[v] -= dp[u];
      dp[u] += dp[v];
   }
}

int LocateCentre(int N, int pp[], int S[], int D[]) {
   cnt.resize(N);
   for (int i = 0; i < N; ++i) {
      cnt[i] = pp[i];
   }
   dp.resize(N);
   adj.resize(N);
   for (int i = 0; i < N - 1; ++i) {
      adj[S[i]].push_back(D[i]);
      adj[D[i]].push_back(S[i]);
   }
   dfs(0, -1);
   ans = {0, 0};
   for (int v : adj[0]) {
      ans[1] = max(ans[1], dp[v]);
   }

   dfs2(0, -1);
   return ans[0];
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 300 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 296 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 432 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 436 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 300 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 296 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 432 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 436 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 304 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 320 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 300 KB Output is correct
54 Correct 1 ms 304 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 300 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 300 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 204 KB Output is correct
68 Correct 25 ms 7912 KB Output is correct
69 Correct 51 ms 15620 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 76 ms 23380 KB Output is correct
72 Correct 104 ms 31180 KB Output is correct
73 Correct 125 ms 39012 KB Output is correct
74 Correct 160 ms 46592 KB Output is correct
75 Correct 181 ms 54412 KB Output is correct
76 Correct 218 ms 62224 KB Output is correct
77 Correct 236 ms 69892 KB Output is correct
78 Correct 255 ms 77636 KB Output is correct
79 Correct 280 ms 85428 KB Output is correct
80 Correct 360 ms 93140 KB Output is correct
81 Correct 1 ms 204 KB Output is correct
82 Correct 342 ms 101164 KB Output is correct
83 Correct 374 ms 108700 KB Output is correct
84 Correct 397 ms 116372 KB Output is correct
85 Correct 411 ms 124212 KB Output is correct
86 Correct 469 ms 131904 KB Output is correct
87 Correct 485 ms 139632 KB Output is correct
88 Correct 503 ms 147364 KB Output is correct
89 Correct 528 ms 154956 KB Output is correct
90 Correct 1 ms 300 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 1 ms 204 KB Output is correct
93 Correct 1 ms 204 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 300 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 296 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 432 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 436 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 296 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 296 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 216 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 204 KB Output is correct
68 Correct 1 ms 204 KB Output is correct
69 Correct 1 ms 204 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 204 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 1 ms 300 KB Output is correct
74 Correct 1 ms 332 KB Output is correct
75 Correct 1 ms 332 KB Output is correct
76 Correct 1 ms 332 KB Output is correct
77 Correct 1 ms 332 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 1 ms 332 KB Output is correct
80 Correct 1 ms 332 KB Output is correct
81 Correct 1 ms 204 KB Output is correct
82 Correct 1 ms 300 KB Output is correct
83 Correct 1 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 1 ms 332 KB Output is correct
86 Correct 1 ms 332 KB Output is correct
87 Correct 1 ms 332 KB Output is correct
88 Correct 1 ms 332 KB Output is correct
89 Correct 1 ms 332 KB Output is correct
90 Correct 1 ms 332 KB Output is correct
91 Correct 1 ms 332 KB Output is correct
92 Correct 1 ms 204 KB Output is correct
93 Correct 1 ms 332 KB Output is correct
94 Correct 1 ms 332 KB Output is correct
95 Correct 1 ms 460 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 1 ms 204 KB Output is correct
98 Correct 1 ms 204 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 300 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 296 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 432 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 436 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 304 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 320 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 300 KB Output is correct
54 Correct 1 ms 304 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 300 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 300 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 204 KB Output is correct
68 Correct 25 ms 7912 KB Output is correct
69 Correct 51 ms 15620 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 76 ms 23380 KB Output is correct
72 Correct 104 ms 31180 KB Output is correct
73 Correct 125 ms 39012 KB Output is correct
74 Correct 160 ms 46592 KB Output is correct
75 Correct 181 ms 54412 KB Output is correct
76 Correct 218 ms 62224 KB Output is correct
77 Correct 236 ms 69892 KB Output is correct
78 Correct 255 ms 77636 KB Output is correct
79 Correct 280 ms 85428 KB Output is correct
80 Correct 360 ms 93140 KB Output is correct
81 Correct 1 ms 204 KB Output is correct
82 Correct 342 ms 101164 KB Output is correct
83 Correct 374 ms 108700 KB Output is correct
84 Correct 397 ms 116372 KB Output is correct
85 Correct 411 ms 124212 KB Output is correct
86 Correct 469 ms 131904 KB Output is correct
87 Correct 485 ms 139632 KB Output is correct
88 Correct 503 ms 147364 KB Output is correct
89 Correct 528 ms 154956 KB Output is correct
90 Correct 1 ms 300 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 1 ms 204 KB Output is correct
93 Correct 1 ms 204 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
95 Correct 1 ms 296 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 1 ms 204 KB Output is correct
98 Correct 1 ms 204 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
100 Correct 1 ms 204 KB Output is correct
101 Correct 1 ms 296 KB Output is correct
102 Correct 1 ms 204 KB Output is correct
103 Correct 1 ms 204 KB Output is correct
104 Correct 1 ms 204 KB Output is correct
105 Correct 1 ms 204 KB Output is correct
106 Correct 1 ms 204 KB Output is correct
107 Correct 1 ms 216 KB Output is correct
108 Correct 1 ms 204 KB Output is correct
109 Correct 1 ms 204 KB Output is correct
110 Correct 1 ms 204 KB Output is correct
111 Correct 1 ms 204 KB Output is correct
112 Correct 1 ms 204 KB Output is correct
113 Correct 1 ms 204 KB Output is correct
114 Correct 1 ms 204 KB Output is correct
115 Correct 1 ms 204 KB Output is correct
116 Correct 1 ms 204 KB Output is correct
117 Correct 1 ms 204 KB Output is correct
118 Correct 1 ms 204 KB Output is correct
119 Correct 1 ms 204 KB Output is correct
120 Correct 1 ms 300 KB Output is correct
121 Correct 1 ms 332 KB Output is correct
122 Correct 1 ms 332 KB Output is correct
123 Correct 1 ms 332 KB Output is correct
124 Correct 1 ms 332 KB Output is correct
125 Correct 1 ms 332 KB Output is correct
126 Correct 1 ms 332 KB Output is correct
127 Correct 1 ms 332 KB Output is correct
128 Correct 1 ms 204 KB Output is correct
129 Correct 1 ms 300 KB Output is correct
130 Correct 1 ms 332 KB Output is correct
131 Correct 1 ms 332 KB Output is correct
132 Correct 1 ms 332 KB Output is correct
133 Correct 1 ms 332 KB Output is correct
134 Correct 1 ms 332 KB Output is correct
135 Correct 1 ms 332 KB Output is correct
136 Correct 1 ms 332 KB Output is correct
137 Correct 1 ms 332 KB Output is correct
138 Correct 1 ms 332 KB Output is correct
139 Correct 1 ms 204 KB Output is correct
140 Correct 1 ms 332 KB Output is correct
141 Correct 1 ms 332 KB Output is correct
142 Correct 1 ms 460 KB Output is correct
143 Correct 1 ms 204 KB Output is correct
144 Correct 1 ms 204 KB Output is correct
145 Correct 1 ms 204 KB Output is correct
146 Correct 1 ms 204 KB Output is correct
147 Correct 1 ms 204 KB Output is correct
148 Correct 1 ms 204 KB Output is correct
149 Correct 1 ms 204 KB Output is correct
150 Correct 1 ms 204 KB Output is correct
151 Correct 1 ms 300 KB Output is correct
152 Correct 1 ms 204 KB Output is correct
153 Correct 1 ms 204 KB Output is correct
154 Correct 1 ms 304 KB Output is correct
155 Correct 1 ms 204 KB Output is correct
156 Correct 1 ms 204 KB Output is correct
157 Correct 1 ms 204 KB Output is correct
158 Correct 1 ms 204 KB Output is correct
159 Correct 1 ms 204 KB Output is correct
160 Correct 1 ms 296 KB Output is correct
161 Correct 1 ms 204 KB Output is correct
162 Correct 1 ms 204 KB Output is correct
163 Correct 1 ms 204 KB Output is correct
164 Correct 1 ms 204 KB Output is correct
165 Correct 1 ms 204 KB Output is correct
166 Correct 1 ms 204 KB Output is correct
167 Correct 1 ms 204 KB Output is correct
168 Correct 1 ms 204 KB Output is correct
169 Correct 1 ms 204 KB Output is correct
170 Correct 1 ms 204 KB Output is correct
171 Correct 31 ms 4840 KB Output is correct
172 Correct 73 ms 9588 KB Output is correct
173 Correct 120 ms 14096 KB Output is correct
174 Correct 191 ms 18800 KB Output is correct
175 Correct 253 ms 23560 KB Output is correct
176 Correct 340 ms 28120 KB Output is correct
177 Correct 358 ms 32916 KB Output is correct
178 Correct 468 ms 37316 KB Output is correct
179 Correct 533 ms 42012 KB Output is correct
180 Correct 1 ms 204 KB Output is correct
181 Correct 594 ms 46624 KB Output is correct
182 Correct 694 ms 51268 KB Output is correct
183 Correct 722 ms 55880 KB Output is correct
184 Correct 792 ms 60544 KB Output is correct
185 Correct 871 ms 65180 KB Output is correct
186 Correct 923 ms 69864 KB Output is correct
187 Correct 966 ms 74532 KB Output is correct
188 Correct 1053 ms 79104 KB Output is correct
189 Correct 1089 ms 83668 KB Output is correct
190 Correct 1185 ms 88256 KB Output is correct
191 Correct 1 ms 204 KB Output is correct
192 Correct 1259 ms 92808 KB Output is correct
193 Correct 245 ms 76308 KB Output is correct
194 Correct 511 ms 152752 KB Output is correct
195 Correct 1 ms 204 KB Output is correct
196 Correct 1 ms 204 KB Output is correct
197 Correct 1 ms 304 KB Output is correct
198 Correct 1 ms 204 KB Output is correct