#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pi pair<int, int>
#define endl '\n'
void setIO(string name = "") {
ios_base::sync_with_stdio(0);
cin.tie(0);
if (name.length()) {
freopen((name+".in").c_str(), "r", stdin);
freopen((name+".out").c_str(), "w", stdout);
}
}
struct node{
int id, person;
vector<node*> adj;
node(int i, int p, vector<node*> a){
id = i;
person = p;
adj = a;
}
};
int n;
node* A[1000000];
ll dfs(node* curr, int prev){
ll sum = curr->person;
for(node* next : curr->adj){
if(prev != next->id){
sum += dfs(next, curr->id);
}
}
return sum;
}
ll root(node* root){
ll ret = 0;
for(node* next : root->adj){
ret = max(ret, dfs(next, root->id));
}
return ret;
}
int LocateCentre(int n, int* p, int* s, int* d){
for(int i = 0; i < n; i++){
A[i] = new node(i, p[i], vector<node*>());
}
for(int i = 0; i < n-1; i++){
A[s[i]]->adj.push_back(A[d[i]]);
A[d[i]]->adj.push_back(A[s[i]]);
}
ll res = LLONG_MAX, ret = -1;
for(int i = 0; i < n; i++){
ll curr = root(A[i]);
if(curr < res){
res = curr;
ret = A[i]->id;
}
}
return ret;
}
/*int main(){
setIO("");
int* p = new int[5];
int* s = new int[4];
int* d = new int[4];
p[0] = 10, p[1] = 10, p[2] = 10, p[3] = 20, p[4] = 20;
s[0] = 0, s[1] = 1, s[2] = 2, s[3] = 3;
d[0] = 2, d[1] = 2, d[2] = 3, d[3] = 4;
cout << LocateCentre(5, p, s, d) << endl;;
return 0;
}*/
Compilation message
traffic.cpp: In function 'void setIO(std::string)':
traffic.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
12 | freopen((name+".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
traffic.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
13 | freopen((name+".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
384 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 |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
396 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 |
512 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 |
2 ms |
364 KB |
Output is correct |
29 |
Correct |
3 ms |
364 KB |
Output is correct |
30 |
Correct |
2 ms |
364 KB |
Output is correct |
31 |
Correct |
3 ms |
364 KB |
Output is correct |
32 |
Correct |
3 ms |
492 KB |
Output is correct |
33 |
Correct |
4 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
4 ms |
492 KB |
Output is correct |
36 |
Correct |
4 ms |
492 KB |
Output is correct |
37 |
Correct |
5 ms |
492 KB |
Output is correct |
38 |
Correct |
5 ms |
492 KB |
Output is correct |
39 |
Correct |
5 ms |
492 KB |
Output is correct |
40 |
Correct |
8 ms |
492 KB |
Output is correct |
41 |
Correct |
8 ms |
492 KB |
Output is correct |
42 |
Correct |
8 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
384 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 |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
396 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 |
512 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 |
2 ms |
364 KB |
Output is correct |
29 |
Correct |
3 ms |
364 KB |
Output is correct |
30 |
Correct |
2 ms |
364 KB |
Output is correct |
31 |
Correct |
3 ms |
364 KB |
Output is correct |
32 |
Correct |
3 ms |
492 KB |
Output is correct |
33 |
Correct |
4 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
4 ms |
492 KB |
Output is correct |
36 |
Correct |
4 ms |
492 KB |
Output is correct |
37 |
Correct |
5 ms |
492 KB |
Output is correct |
38 |
Correct |
5 ms |
492 KB |
Output is correct |
39 |
Correct |
5 ms |
492 KB |
Output is correct |
40 |
Correct |
8 ms |
492 KB |
Output is correct |
41 |
Correct |
8 ms |
492 KB |
Output is correct |
42 |
Correct |
8 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 |
492 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 |
384 KB |
Output is correct |
66 |
Correct |
1 ms |
364 KB |
Output is correct |
67 |
Correct |
1 ms |
364 KB |
Output is correct |
68 |
Execution timed out |
5081 ms |
8428 KB |
Time limit exceeded |
69 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
384 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 |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
396 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 |
512 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 |
2 ms |
364 KB |
Output is correct |
29 |
Correct |
3 ms |
364 KB |
Output is correct |
30 |
Correct |
2 ms |
364 KB |
Output is correct |
31 |
Correct |
3 ms |
364 KB |
Output is correct |
32 |
Correct |
3 ms |
492 KB |
Output is correct |
33 |
Correct |
4 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
4 ms |
492 KB |
Output is correct |
36 |
Correct |
4 ms |
492 KB |
Output is correct |
37 |
Correct |
5 ms |
492 KB |
Output is correct |
38 |
Correct |
5 ms |
492 KB |
Output is correct |
39 |
Correct |
5 ms |
492 KB |
Output is correct |
40 |
Correct |
8 ms |
492 KB |
Output is correct |
41 |
Correct |
8 ms |
492 KB |
Output is correct |
42 |
Correct |
8 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 |
492 KB |
Output is correct |
56 |
Correct |
1 ms |
492 KB |
Output is correct |
57 |
Correct |
1 ms |
512 KB |
Output is correct |
58 |
Correct |
1 ms |
364 KB |
Output is correct |
59 |
Correct |
1 ms |
364 KB |
Output is correct |
60 |
Correct |
2 ms |
408 KB |
Output is correct |
61 |
Correct |
1 ms |
384 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 |
640 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 |
500 KB |
Output is correct |
73 |
Correct |
1 ms |
364 KB |
Output is correct |
74 |
Correct |
1 ms |
364 KB |
Output is correct |
75 |
Correct |
1 ms |
364 KB |
Output is correct |
76 |
Correct |
2 ms |
512 KB |
Output is correct |
77 |
Correct |
2 ms |
364 KB |
Output is correct |
78 |
Correct |
3 ms |
512 KB |
Output is correct |
79 |
Correct |
3 ms |
364 KB |
Output is correct |
80 |
Correct |
4 ms |
364 KB |
Output is correct |
81 |
Correct |
1 ms |
364 KB |
Output is correct |
82 |
Correct |
6 ms |
364 KB |
Output is correct |
83 |
Correct |
5 ms |
364 KB |
Output is correct |
84 |
Correct |
5 ms |
364 KB |
Output is correct |
85 |
Correct |
5 ms |
364 KB |
Output is correct |
86 |
Correct |
7 ms |
364 KB |
Output is correct |
87 |
Correct |
8 ms |
492 KB |
Output is correct |
88 |
Correct |
8 ms |
640 KB |
Output is correct |
89 |
Correct |
13 ms |
492 KB |
Output is correct |
90 |
Correct |
13 ms |
492 KB |
Output is correct |
91 |
Correct |
12 ms |
492 KB |
Output is correct |
92 |
Correct |
1 ms |
364 KB |
Output is correct |
93 |
Correct |
16 ms |
492 KB |
Output is correct |
94 |
Correct |
2 ms |
364 KB |
Output is correct |
95 |
Correct |
7 ms |
492 KB |
Output is correct |
96 |
Correct |
1 ms |
364 KB |
Output is correct |
97 |
Correct |
1 ms |
492 KB |
Output is correct |
98 |
Correct |
1 ms |
364 KB |
Output is correct |
99 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
384 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 |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
396 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 |
512 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 |
2 ms |
364 KB |
Output is correct |
29 |
Correct |
3 ms |
364 KB |
Output is correct |
30 |
Correct |
2 ms |
364 KB |
Output is correct |
31 |
Correct |
3 ms |
364 KB |
Output is correct |
32 |
Correct |
3 ms |
492 KB |
Output is correct |
33 |
Correct |
4 ms |
512 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
4 ms |
492 KB |
Output is correct |
36 |
Correct |
4 ms |
492 KB |
Output is correct |
37 |
Correct |
5 ms |
492 KB |
Output is correct |
38 |
Correct |
5 ms |
492 KB |
Output is correct |
39 |
Correct |
5 ms |
492 KB |
Output is correct |
40 |
Correct |
8 ms |
492 KB |
Output is correct |
41 |
Correct |
8 ms |
492 KB |
Output is correct |
42 |
Correct |
8 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 |
492 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 |
384 KB |
Output is correct |
66 |
Correct |
1 ms |
364 KB |
Output is correct |
67 |
Correct |
1 ms |
364 KB |
Output is correct |
68 |
Execution timed out |
5081 ms |
8428 KB |
Time limit exceeded |
69 |
Halted |
0 ms |
0 KB |
- |