oj.uz

Submission #837917

# Submission time Handle Problem Language Result Execution time Memory
837917 2023-08-25T20:07:26 Z thimote75 Traffic (IOI10_traffic) C++14
100 / 100
 847 ms 159104 KB 
#include "traffic.h"

#include <bits/stdc++.h>

using namespace std;

using idata = vector<int>;
using igrid = vector<idata>;

idata weight;
idata subtree_weight;
idata parents;

igrid roads;

int dfs (int node, int parent) {
   parents[node] = parent;

   subtree_weight[node] = weight[node];

   for (int next : roads[node]) if (next != parent)
      subtree_weight[node] += dfs(next, node);

   return subtree_weight[node];
}
int count (int source, int target) {
   if (parents[source] == target)
      return subtree_weight[0] - subtree_weight[source];
   return subtree_weight[target];
}
int find (int source) {
   int res = 0;
   for (int u : roads[source])
      res = max(res, count(source, u));
   
   return res;
}

int LocateCentre(int N, int pp[], int S[], int D[]) {
   weight.resize(N);
   for (int i = 0; i < N; i ++) weight[i] = pp[i];

   roads.resize(N);
   parents.resize(N);
   subtree_weight.resize(N);

   for (int i = 0; i + 1 < N; i ++) {
      roads[S[i]].push_back(D[i]);
      roads[D[i]].push_back(S[i]);
   }

   dfs(0, -1);

   pair<int, int> H = { 2e9 + 10, 0 };

   for (int i = 0; i < N; i ++) {
      pair<int, int> local = { find(i), i };
      H = min(H, local);
   }

   return H.second;
}

Subtask #1
25.0 / 25.0

# 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 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 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 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 340 KB Output is correct
34 Correct 1 ms 312 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct

Subtask #2
25.0 / 25.0

# 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 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 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 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 340 KB Output is correct
34 Correct 1 ms 312 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 312 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 0 ms 212 KB Output is correct
67 Correct 0 ms 212 KB Output is correct
68 Correct 16 ms 8148 KB Output is correct
69 Correct 33 ms 16072 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 50 ms 24060 KB Output is correct
72 Correct 66 ms 31968 KB Output is correct
73 Correct 85 ms 39888 KB Output is correct
74 Correct 95 ms 47804 KB Output is correct
75 Correct 114 ms 55756 KB Output is correct
76 Correct 130 ms 63828 KB Output is correct
77 Correct 145 ms 71732 KB Output is correct
78 Correct 161 ms 79716 KB Output is correct
79 Correct 182 ms 87628 KB Output is correct
80 Correct 194 ms 95564 KB Output is correct
81 Correct 0 ms 212 KB Output is correct
82 Correct 213 ms 103500 KB Output is correct
83 Correct 233 ms 111436 KB Output is correct
84 Correct 246 ms 119384 KB Output is correct
85 Correct 260 ms 127308 KB Output is correct
86 Correct 282 ms 135224 KB Output is correct
87 Correct 302 ms 143204 KB Output is correct
88 Correct 307 ms 151012 KB Output is correct
89 Correct 330 ms 159104 KB Output is correct
90 Correct 1 ms 424 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 1 ms 212 KB Output is correct
93 Correct 1 ms 212 KB Output is correct
94 Correct 1 ms 212 KB Output is correct

Subtask #3
25.0 / 25.0

# 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 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 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 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 340 KB Output is correct
34 Correct 1 ms 312 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 1 ms 212 KB Output is correct
62 Correct 0 ms 304 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 0 ms 212 KB Output is correct
67 Correct 1 ms 212 KB Output is correct
68 Correct 1 ms 212 KB Output is correct
69 Correct 0 ms 308 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 1 ms 336 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 340 KB Output is correct
76 Correct 1 ms 340 KB Output is correct
77 Correct 1 ms 340 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 1 ms 340 KB Output is correct
80 Correct 1 ms 340 KB Output is correct
81 Correct 0 ms 212 KB Output is correct
82 Correct 1 ms 340 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 312 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 1 ms 340 KB Output is correct
89 Correct 1 ms 340 KB Output is correct
90 Correct 1 ms 304 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 1 ms 216 KB Output is correct
93 Correct 1 ms 340 KB Output is correct
94 Correct 1 ms 340 KB Output is correct
95 Correct 1 ms 468 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 0 ms 212 KB Output is correct
98 Correct 0 ms 212 KB Output is correct
99 Correct 1 ms 212 KB Output is correct

Subtask #4
25.0 / 25.0

# 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 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 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 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 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 340 KB Output is correct
34 Correct 1 ms 312 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 312 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 0 ms 212 KB Output is correct
67 Correct 0 ms 212 KB Output is correct
68 Correct 16 ms 8148 KB Output is correct
69 Correct 33 ms 16072 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 50 ms 24060 KB Output is correct
72 Correct 66 ms 31968 KB Output is correct
73 Correct 85 ms 39888 KB Output is correct
74 Correct 95 ms 47804 KB Output is correct
75 Correct 114 ms 55756 KB Output is correct
76 Correct 130 ms 63828 KB Output is correct
77 Correct 145 ms 71732 KB Output is correct
78 Correct 161 ms 79716 KB Output is correct
79 Correct 182 ms 87628 KB Output is correct
80 Correct 194 ms 95564 KB Output is correct
81 Correct 0 ms 212 KB Output is correct
82 Correct 213 ms 103500 KB Output is correct
83 Correct 233 ms 111436 KB Output is correct
84 Correct 246 ms 119384 KB Output is correct
85 Correct 260 ms 127308 KB Output is correct
86 Correct 282 ms 135224 KB Output is correct
87 Correct 302 ms 143204 KB Output is correct
88 Correct 307 ms 151012 KB Output is correct
89 Correct 330 ms 159104 KB Output is correct
90 Correct 1 ms 424 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 1 ms 212 KB Output is correct
93 Correct 1 ms 212 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 0 ms 212 KB Output is correct
98 Correct 0 ms 212 KB Output is correct
99 Correct 1 ms 212 KB Output is correct
100 Correct 1 ms 212 KB Output is correct
101 Correct 1 ms 212 KB Output is correct
102 Correct 1 ms 212 KB Output is correct
103 Correct 0 ms 212 KB Output is correct
104 Correct 0 ms 212 KB Output is correct
105 Correct 1 ms 212 KB Output is correct
106 Correct 0 ms 212 KB Output is correct
107 Correct 0 ms 212 KB Output is correct
108 Correct 1 ms 212 KB Output is correct
109 Correct 0 ms 304 KB Output is correct
110 Correct 1 ms 212 KB Output is correct
111 Correct 1 ms 212 KB Output is correct
112 Correct 0 ms 212 KB Output is correct
113 Correct 0 ms 212 KB Output is correct
114 Correct 1 ms 212 KB Output is correct
115 Correct 1 ms 212 KB Output is correct
116 Correct 0 ms 308 KB Output is correct
117 Correct 0 ms 212 KB Output is correct
118 Correct 0 ms 212 KB Output is correct
119 Correct 0 ms 212 KB Output is correct
120 Correct 1 ms 336 KB Output is correct
121 Correct 1 ms 340 KB Output is correct
122 Correct 1 ms 340 KB Output is correct
123 Correct 1 ms 340 KB Output is correct
124 Correct 1 ms 340 KB Output is correct
125 Correct 1 ms 340 KB Output is correct
126 Correct 1 ms 340 KB Output is correct
127 Correct 1 ms 340 KB Output is correct
128 Correct 0 ms 212 KB Output is correct
129 Correct 1 ms 340 KB Output is correct
130 Correct 1 ms 340 KB Output is correct
131 Correct 1 ms 340 KB Output is correct
132 Correct 1 ms 340 KB Output is correct
133 Correct 1 ms 312 KB Output is correct
134 Correct 1 ms 340 KB Output is correct
135 Correct 1 ms 340 KB Output is correct
136 Correct 1 ms 340 KB Output is correct
137 Correct 1 ms 304 KB Output is correct
138 Correct 1 ms 340 KB Output is correct
139 Correct 1 ms 216 KB Output is correct
140 Correct 1 ms 340 KB Output is correct
141 Correct 1 ms 340 KB Output is correct
142 Correct 1 ms 468 KB Output is correct
143 Correct 1 ms 212 KB Output is correct
144 Correct 0 ms 212 KB Output is correct
145 Correct 0 ms 212 KB Output is correct
146 Correct 1 ms 212 KB Output is correct
147 Correct 1 ms 212 KB Output is correct
148 Correct 1 ms 212 KB Output is correct
149 Correct 0 ms 212 KB Output is correct
150 Correct 1 ms 212 KB Output is correct
151 Correct 1 ms 212 KB Output is correct
152 Correct 1 ms 212 KB Output is correct
153 Correct 1 ms 212 KB Output is correct
154 Correct 0 ms 212 KB Output is correct
155 Correct 1 ms 212 KB Output is correct
156 Correct 1 ms 212 KB Output is correct
157 Correct 1 ms 212 KB Output is correct
158 Correct 0 ms 212 KB Output is correct
159 Correct 1 ms 212 KB Output is correct
160 Correct 0 ms 212 KB Output is correct
161 Correct 1 ms 212 KB Output is correct
162 Correct 1 ms 212 KB Output is correct
163 Correct 0 ms 212 KB Output is correct
164 Correct 1 ms 212 KB Output is correct
165 Correct 1 ms 212 KB Output is correct
166 Correct 0 ms 212 KB Output is correct
167 Correct 1 ms 212 KB Output is correct
168 Correct 0 ms 212 KB Output is correct
169 Correct 0 ms 212 KB Output is correct
170 Correct 0 ms 212 KB Output is correct
171 Correct 18 ms 5076 KB Output is correct
172 Correct 40 ms 9800 KB Output is correct
173 Correct 61 ms 14668 KB Output is correct
174 Correct 97 ms 19644 KB Output is correct
175 Correct 128 ms 24568 KB Output is correct
176 Correct 170 ms 29296 KB Output is correct
177 Correct 207 ms 34124 KB Output is correct
178 Correct 265 ms 38960 KB Output is correct
179 Correct 338 ms 43884 KB Output is correct
180 Correct 1 ms 212 KB Output is correct
181 Correct 353 ms 48548 KB Output is correct
182 Correct 408 ms 53452 KB Output is correct
183 Correct 451 ms 58364 KB Output is correct
184 Correct 516 ms 63196 KB Output is correct
185 Correct 554 ms 67952 KB Output is correct
186 Correct 615 ms 72848 KB Output is correct
187 Correct 660 ms 77632 KB Output is correct
188 Correct 709 ms 82524 KB Output is correct
189 Correct 770 ms 87244 KB Output is correct
190 Correct 787 ms 92068 KB Output is correct
191 Correct 0 ms 212 KB Output is correct
192 Correct 847 ms 96800 KB Output is correct
193 Correct 158 ms 78284 KB Output is correct
194 Correct 325 ms 156616 KB Output is correct
195 Correct 1 ms 212 KB Output is correct
196 Correct 0 ms 212 KB Output is correct
197 Correct 0 ms 212 KB Output is correct
198 Correct 0 ms 212 KB Output is correct