oj.uz

Submission #582914

# Submission time Handle Problem Language Result Execution time Memory
582914 2022-06-24T15:04:49 Z sff_user Traffic (IOI10_traffic) C++17
100 / 100
 1166 ms 174616 KB 
#include <bits/stdc++.h>
#include "traffic.h"

#define pb push_back
#define vi vector<int>
#define ll long long

using namespace std;

vector<vi > adj;
ll sub[1000006];
int par[1000006];
void dfs(int u , int p, int pp[]){
   sub[u] = pp[u];
   par[u] = p;
   for(int v : adj[u]){
      if(v== p) continue;
      dfs(v,u,pp);
      sub[u] += sub[v];
   }
}

int LocateCentre(int n, int pp[] , int S[], int D[]) {
   adj.resize(n+1);
   for(int i = 0 ; i < n-1 ; i++){
      adj[S[i]].pb(D[i]);
      adj[D[i]].pb(S[i]);
   }   
   dfs(0,-1,pp);
   ll a =1e9 ,b = 0,ans;
   for(int i = 0 ; i < n ; i++){
      b=0;
      for(int j : adj[i]){
         if(j != par[i]){
            b = max(b,sub[j]);
            continue;
         }
         b = max(b,sub[0]-sub[i]);
      }
      if( b <= a){
         a = b;
         ans = i;
      }
   }

   return ans;
}

// int main(){
//    int n = 5;
//    int pp[5] = {10,10,10,20,20};
//    int S[4] = {0,1,2,3};
//    int D[4] = {2,2,3,4};
//    cout << LocateCentre(n,pp,S,D) << endl;
// }

Compilation message

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:46:11: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |    return ans;
      |           ^~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 244 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 224 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 324 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 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 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 316 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 452 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 476 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 320 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 316 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 244 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 224 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 324 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 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 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 316 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 452 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 476 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 320 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 316 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 316 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 320 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 320 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 340 KB Output is correct
67 Correct 1 ms 316 KB Output is correct
68 Correct 24 ms 8904 KB Output is correct
69 Correct 46 ms 17608 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 61 ms 26340 KB Output is correct
72 Correct 84 ms 35104 KB Output is correct
73 Correct 106 ms 43872 KB Output is correct
74 Correct 127 ms 52516 KB Output is correct
75 Correct 175 ms 61300 KB Output is correct
76 Correct 169 ms 69988 KB Output is correct
77 Correct 211 ms 78792 KB Output is correct
78 Correct 237 ms 87468 KB Output is correct
79 Correct 251 ms 96316 KB Output is correct
80 Correct 280 ms 104936 KB Output is correct
81 Correct 1 ms 340 KB Output is correct
82 Correct 354 ms 113792 KB Output is correct
83 Correct 312 ms 122348 KB Output is correct
84 Correct 391 ms 131120 KB Output is correct
85 Correct 361 ms 139836 KB Output is correct
86 Correct 440 ms 148492 KB Output is correct
87 Correct 412 ms 157188 KB Output is correct
88 Correct 423 ms 166032 KB Output is correct
89 Correct 490 ms 174616 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 1 ms 340 KB Output is correct
93 Correct 1 ms 340 KB Output is correct
94 Correct 1 ms 340 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 244 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 224 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 324 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 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 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 316 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 452 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 476 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 320 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 316 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 320 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 324 KB Output is correct
67 Correct 0 ms 340 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 320 KB Output is correct
71 Correct 1 ms 320 KB Output is correct
72 Correct 1 ms 324 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 284 KB Output is correct
76 Correct 1 ms 384 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 1 ms 212 KB Output is correct
82 Correct 1 ms 340 KB Output is correct
83 Correct 1 ms 324 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 340 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 1 ms 324 KB Output is correct
89 Correct 1 ms 340 KB Output is correct
90 Correct 1 ms 336 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 1 ms 340 KB Output is correct
93 Correct 1 ms 352 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 340 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 1 ms 316 KB Output is correct
99 Correct 1 ms 340 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 244 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 224 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 324 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 328 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 320 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 316 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 452 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 476 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 320 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 316 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 316 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 320 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 320 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 340 KB Output is correct
67 Correct 1 ms 316 KB Output is correct
68 Correct 24 ms 8904 KB Output is correct
69 Correct 46 ms 17608 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 61 ms 26340 KB Output is correct
72 Correct 84 ms 35104 KB Output is correct
73 Correct 106 ms 43872 KB Output is correct
74 Correct 127 ms 52516 KB Output is correct
75 Correct 175 ms 61300 KB Output is correct
76 Correct 169 ms 69988 KB Output is correct
77 Correct 211 ms 78792 KB Output is correct
78 Correct 237 ms 87468 KB Output is correct
79 Correct 251 ms 96316 KB Output is correct
80 Correct 280 ms 104936 KB Output is correct
81 Correct 1 ms 340 KB Output is correct
82 Correct 354 ms 113792 KB Output is correct
83 Correct 312 ms 122348 KB Output is correct
84 Correct 391 ms 131120 KB Output is correct
85 Correct 361 ms 139836 KB Output is correct
86 Correct 440 ms 148492 KB Output is correct
87 Correct 412 ms 157188 KB Output is correct
88 Correct 423 ms 166032 KB Output is correct
89 Correct 490 ms 174616 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 1 ms 340 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 340 KB Output is correct
96 Correct 1 ms 340 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 1 ms 340 KB Output is correct
99 Correct 1 ms 320 KB Output is correct
100 Correct 1 ms 340 KB Output is correct
101 Correct 1 ms 340 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 340 KB Output is correct
104 Correct 1 ms 340 KB Output is correct
105 Correct 1 ms 340 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 1 ms 340 KB Output is correct
108 Correct 1 ms 340 KB Output is correct
109 Correct 1 ms 364 KB Output is correct
110 Correct 1 ms 340 KB Output is correct
111 Correct 1 ms 340 KB Output is correct
112 Correct 1 ms 340 KB Output is correct
113 Correct 1 ms 324 KB Output is correct
114 Correct 0 ms 340 KB Output is correct
115 Correct 1 ms 340 KB Output is correct
116 Correct 1 ms 340 KB Output is correct
117 Correct 1 ms 320 KB Output is correct
118 Correct 1 ms 320 KB Output is correct
119 Correct 1 ms 324 KB Output is correct
120 Correct 1 ms 340 KB Output is correct
121 Correct 1 ms 340 KB Output is correct
122 Correct 1 ms 284 KB Output is correct
123 Correct 1 ms 384 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 1 ms 212 KB Output is correct
129 Correct 1 ms 340 KB Output is correct
130 Correct 1 ms 324 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 340 KB Output is correct
134 Correct 1 ms 340 KB Output is correct
135 Correct 1 ms 324 KB Output is correct
136 Correct 1 ms 340 KB Output is correct
137 Correct 1 ms 336 KB Output is correct
138 Correct 1 ms 340 KB Output is correct
139 Correct 1 ms 340 KB Output is correct
140 Correct 1 ms 352 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 340 KB Output is correct
144 Correct 1 ms 340 KB Output is correct
145 Correct 1 ms 316 KB Output is correct
146 Correct 1 ms 340 KB Output is correct
147 Correct 1 ms 340 KB Output is correct
148 Correct 1 ms 324 KB Output is correct
149 Correct 1 ms 340 KB Output is correct
150 Correct 1 ms 340 KB Output is correct
151 Correct 1 ms 316 KB Output is correct
152 Correct 0 ms 320 KB Output is correct
153 Correct 1 ms 340 KB Output is correct
154 Correct 1 ms 316 KB Output is correct
155 Correct 1 ms 340 KB Output is correct
156 Correct 1 ms 340 KB Output is correct
157 Correct 1 ms 340 KB Output is correct
158 Correct 1 ms 316 KB Output is correct
159 Correct 1 ms 340 KB Output is correct
160 Correct 1 ms 340 KB Output is correct
161 Correct 1 ms 320 KB Output is correct
162 Correct 1 ms 340 KB Output is correct
163 Correct 1 ms 264 KB Output is correct
164 Correct 1 ms 316 KB Output is correct
165 Correct 1 ms 320 KB Output is correct
166 Correct 1 ms 340 KB Output is correct
167 Correct 1 ms 340 KB Output is correct
168 Correct 1 ms 340 KB Output is correct
169 Correct 1 ms 340 KB Output is correct
170 Correct 1 ms 340 KB Output is correct
171 Correct 25 ms 5048 KB Output is correct
172 Correct 56 ms 9880 KB Output is correct
173 Correct 106 ms 14748 KB Output is correct
174 Correct 209 ms 19624 KB Output is correct
175 Correct 215 ms 24348 KB Output is correct
176 Correct 302 ms 29420 KB Output is correct
177 Correct 363 ms 34096 KB Output is correct
178 Correct 370 ms 38868 KB Output is correct
179 Correct 457 ms 43872 KB Output is correct
180 Correct 1 ms 212 KB Output is correct
181 Correct 502 ms 48768 KB Output is correct
182 Correct 612 ms 53476 KB Output is correct
183 Correct 717 ms 58480 KB Output is correct
184 Correct 719 ms 63140 KB Output is correct
185 Correct 758 ms 67988 KB Output is correct
186 Correct 836 ms 72900 KB Output is correct
187 Correct 910 ms 77736 KB Output is correct
188 Correct 903 ms 82644 KB Output is correct
189 Correct 983 ms 87412 KB Output is correct
190 Correct 1034 ms 92096 KB Output is correct
191 Correct 1 ms 340 KB Output is correct
192 Correct 1166 ms 96872 KB Output is correct
193 Correct 206 ms 86204 KB Output is correct
194 Correct 452 ms 172192 KB Output is correct
195 Correct 1 ms 340 KB Output is correct
196 Correct 1 ms 320 KB Output is correct
197 Correct 1 ms 340 KB Output is correct
198 Correct 1 ms 340 KB Output is correct