oj.uz

Submission #339613

# Submission time Handle Problem Language Result Execution time Memory
339613 2020-12-25T17:41:03 Z TheYellowFlash Traffic (IOI10_traffic) C++17
100 / 100
 1283 ms 192604 KB 
#include "traffic.h"
#include <bits/stdc++.h>
using namespace std;

#define ll int64_t
#define all(x) x.begin(), x.end()

int LocateCentre(int N, int pp[], int S[], int D[]) {

     vector<vector<int>> adj(N);
     vector<ll> ans(N);
     vector<ll> subtree(N, 0);
     ll sum = 0;

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

     for(int i = 0; i < N; ++i){
          subtree[i] += pp[i];
          sum += pp[i];
     }
     
     auto dfs = [&](auto self, int edge, int prev) -> void{
          for(auto& e : adj[edge]){
               if(e == prev) continue;

               self(self, e, edge);
               subtree[edge] += subtree[e];
               ans[edge] = max(ans[edge], subtree[e]);
          }
          ans[edge] = max(ans[edge], sum - subtree[edge]);
     };

     dfs(dfs, 0, 0);
     return min_element(all(ans)) - ans.begin();
}

// subtree[i] originally == node weight
// Increment it each time by weights of its subnodes
// Answer could be max(ans, sum(of all weights) - ans)

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 620 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 492 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 492 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 620 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 492 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 492 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 492 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 30 ms 10092 KB Output is correct
69 Correct 55 ms 19692 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 83 ms 29164 KB Output is correct
72 Correct 108 ms 38764 KB Output is correct
73 Correct 143 ms 48492 KB Output is correct
74 Correct 174 ms 57964 KB Output is correct
75 Correct 183 ms 67564 KB Output is correct
76 Correct 214 ms 77292 KB Output is correct
77 Correct 242 ms 87352 KB Output is correct
78 Correct 273 ms 97004 KB Output is correct
79 Correct 299 ms 106732 KB Output is correct
80 Correct 319 ms 116204 KB Output is correct
81 Correct 1 ms 364 KB Output is correct
82 Correct 350 ms 125772 KB Output is correct
83 Correct 373 ms 135404 KB Output is correct
84 Correct 397 ms 145008 KB Output is correct
85 Correct 428 ms 154476 KB Output is correct
86 Correct 451 ms 164204 KB Output is correct
87 Correct 493 ms 173676 KB Output is correct
88 Correct 515 ms 182636 KB Output is correct
89 Correct 538 ms 192236 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 1 ms 364 KB Output is correct
93 Correct 1 ms 364 KB Output is correct
94 Correct 1 ms 364 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 620 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 492 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 492 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 1 ms 364 KB Output is correct
69 Correct 1 ms 364 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 1 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 1 ms 384 KB Output is correct
74 Correct 1 ms 364 KB Output is correct
75 Correct 1 ms 364 KB Output is correct
76 Correct 1 ms 364 KB Output is correct
77 Correct 1 ms 512 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 1 ms 364 KB Output is correct
80 Correct 1 ms 364 KB Output is correct
81 Correct 1 ms 364 KB Output is correct
82 Correct 1 ms 364 KB Output is correct
83 Correct 1 ms 364 KB Output is correct
84 Correct 1 ms 364 KB Output is correct
85 Correct 1 ms 364 KB Output is correct
86 Correct 1 ms 364 KB Output is correct
87 Correct 1 ms 364 KB Output is correct
88 Correct 1 ms 364 KB Output is correct
89 Correct 1 ms 364 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 1 ms 364 KB Output is correct
93 Correct 1 ms 492 KB Output is correct
94 Correct 1 ms 492 KB Output is correct
95 Correct 1 ms 492 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 1 ms 364 KB Output is correct
98 Correct 1 ms 364 KB Output is correct
99 Correct 1 ms 364 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 620 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 1 ms 492 KB Output is correct
40 Correct 1 ms 492 KB Output is correct
41 Correct 1 ms 492 KB Output is correct
42 Correct 1 ms 492 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 492 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 30 ms 10092 KB Output is correct
69 Correct 55 ms 19692 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 83 ms 29164 KB Output is correct
72 Correct 108 ms 38764 KB Output is correct
73 Correct 143 ms 48492 KB Output is correct
74 Correct 174 ms 57964 KB Output is correct
75 Correct 183 ms 67564 KB Output is correct
76 Correct 214 ms 77292 KB Output is correct
77 Correct 242 ms 87352 KB Output is correct
78 Correct 273 ms 97004 KB Output is correct
79 Correct 299 ms 106732 KB Output is correct
80 Correct 319 ms 116204 KB Output is correct
81 Correct 1 ms 364 KB Output is correct
82 Correct 350 ms 125772 KB Output is correct
83 Correct 373 ms 135404 KB Output is correct
84 Correct 397 ms 145008 KB Output is correct
85 Correct 428 ms 154476 KB Output is correct
86 Correct 451 ms 164204 KB Output is correct
87 Correct 493 ms 173676 KB Output is correct
88 Correct 515 ms 182636 KB Output is correct
89 Correct 538 ms 192236 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 1 ms 364 KB Output is correct
93 Correct 1 ms 364 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 364 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 1 ms 364 KB Output is correct
98 Correct 1 ms 364 KB Output is correct
99 Correct 1 ms 364 KB Output is correct
100 Correct 1 ms 364 KB Output is correct
101 Correct 1 ms 364 KB Output is correct
102 Correct 1 ms 364 KB Output is correct
103 Correct 1 ms 364 KB Output is correct
104 Correct 1 ms 364 KB Output is correct
105 Correct 1 ms 364 KB Output is correct
106 Correct 1 ms 364 KB Output is correct
107 Correct 1 ms 364 KB Output is correct
108 Correct 1 ms 364 KB Output is correct
109 Correct 1 ms 364 KB Output is correct
110 Correct 1 ms 364 KB Output is correct
111 Correct 1 ms 364 KB Output is correct
112 Correct 1 ms 364 KB Output is correct
113 Correct 1 ms 364 KB Output is correct
114 Correct 1 ms 364 KB Output is correct
115 Correct 1 ms 364 KB Output is correct
116 Correct 1 ms 364 KB Output is correct
117 Correct 1 ms 364 KB Output is correct
118 Correct 1 ms 364 KB Output is correct
119 Correct 1 ms 364 KB Output is correct
120 Correct 1 ms 384 KB Output is correct
121 Correct 1 ms 364 KB Output is correct
122 Correct 1 ms 364 KB Output is correct
123 Correct 1 ms 364 KB Output is correct
124 Correct 1 ms 512 KB Output is correct
125 Correct 1 ms 364 KB Output is correct
126 Correct 1 ms 364 KB Output is correct
127 Correct 1 ms 364 KB Output is correct
128 Correct 1 ms 364 KB Output is correct
129 Correct 1 ms 364 KB Output is correct
130 Correct 1 ms 364 KB Output is correct
131 Correct 1 ms 364 KB Output is correct
132 Correct 1 ms 364 KB Output is correct
133 Correct 1 ms 364 KB Output is correct
134 Correct 1 ms 364 KB Output is correct
135 Correct 1 ms 364 KB Output is correct
136 Correct 1 ms 364 KB Output is correct
137 Correct 1 ms 364 KB Output is correct
138 Correct 1 ms 364 KB Output is correct
139 Correct 1 ms 364 KB Output is correct
140 Correct 1 ms 492 KB Output is correct
141 Correct 1 ms 492 KB Output is correct
142 Correct 1 ms 492 KB Output is correct
143 Correct 1 ms 364 KB Output is correct
144 Correct 1 ms 364 KB Output is correct
145 Correct 1 ms 364 KB Output is correct
146 Correct 1 ms 364 KB Output is correct
147 Correct 1 ms 364 KB Output is correct
148 Correct 1 ms 364 KB Output is correct
149 Correct 1 ms 364 KB Output is correct
150 Correct 1 ms 364 KB Output is correct
151 Correct 1 ms 492 KB Output is correct
152 Correct 1 ms 364 KB Output is correct
153 Correct 1 ms 364 KB Output is correct
154 Correct 1 ms 364 KB Output is correct
155 Correct 1 ms 364 KB Output is correct
156 Correct 1 ms 364 KB Output is correct
157 Correct 1 ms 364 KB Output is correct
158 Correct 1 ms 364 KB Output is correct
159 Correct 1 ms 364 KB Output is correct
160 Correct 1 ms 364 KB Output is correct
161 Correct 1 ms 364 KB Output is correct
162 Correct 1 ms 364 KB Output is correct
163 Correct 1 ms 364 KB Output is correct
164 Correct 1 ms 364 KB Output is correct
165 Correct 1 ms 364 KB Output is correct
166 Correct 1 ms 364 KB Output is correct
167 Correct 1 ms 364 KB Output is correct
168 Correct 1 ms 364 KB Output is correct
169 Correct 1 ms 364 KB Output is correct
170 Correct 1 ms 384 KB Output is correct
171 Correct 31 ms 4588 KB Output is correct
172 Correct 74 ms 8812 KB Output is correct
173 Correct 126 ms 12908 KB Output is correct
174 Correct 194 ms 17132 KB Output is correct
175 Correct 261 ms 21356 KB Output is correct
176 Correct 331 ms 25708 KB Output is correct
177 Correct 391 ms 29676 KB Output is correct
178 Correct 459 ms 33900 KB Output is correct
179 Correct 523 ms 38508 KB Output is correct
180 Correct 1 ms 364 KB Output is correct
181 Correct 590 ms 42604 KB Output is correct
182 Correct 659 ms 46700 KB Output is correct
183 Correct 737 ms 51052 KB Output is correct
184 Correct 795 ms 55276 KB Output is correct
185 Correct 854 ms 59244 KB Output is correct
186 Correct 940 ms 63596 KB Output is correct
187 Correct 989 ms 67692 KB Output is correct
188 Correct 1051 ms 72044 KB Output is correct
189 Correct 1143 ms 75884 KB Output is correct
190 Correct 1190 ms 80212 KB Output is correct
191 Correct 1 ms 364 KB Output is correct
192 Correct 1283 ms 83436 KB Output is correct
193 Correct 254 ms 96364 KB Output is correct
194 Correct 506 ms 192604 KB Output is correct
195 Correct 1 ms 364 KB Output is correct
196 Correct 0 ms 364 KB Output is correct
197 Correct 1 ms 364 KB Output is correct
198 Correct 1 ms 364 KB Output is correct