#include <bits/stdc++.h>
using namespace std ;
#define ios ios_base::sync_with_stdio(0); cin.tie(0) ; cout.tie(0)
#define eb emplace_back
#define mp make_pair
#define f first
#define s second
#define endl '\n'
typedef long long int ll ;
const int MAX = 1e6 ;
vector<int> tree[MAX + 5] ;
vector<int> cnt[MAX + 5] ;
ll sum = 0 ;
ll dfs(int node, int s, int p[]) {
ll count = 0 ;
for (int i : tree[node]) {
if (i != s) {
count = dfs(i, node, p) + p[i] ;
cnt[node].eb(count) ;
}
}
ll sm = 0 ;
for (int i : cnt[node]) sm += i ;
cnt[node].eb(sum - sm - p[node]) ;
return count ;
}
int LocateCentre(int n, int p[], int s[], int d[]) {
sum = 0 ;
for (int i = 0 ; i < n ; i++) {
sum += p[i] ;
tree[i].clear() ;
cnt[i].clear() ;
}
for (int i = 0; i < n - 1 ; i++) {
tree[s[i]].eb(d[i]) ;
tree[d[i]].eb(s[i]) ;
}
ll rand = dfs(0, -1, p) ;
int index = 0 ;
while (cnt[index].empty()) index++ ;
sort(cnt[index].begin(), cnt[index].end()) ;
reverse(cnt[index].begin(), cnt[index].end()) ;
for (int i = index + 1 ; i < n ; i++) {
if (!cnt[i].empty()) {
sort(cnt[i].begin(), cnt[i].end()) ;
reverse(cnt[i].begin(), cnt[i].end()) ;
if (cnt[i][0] < cnt[index][0]) {
index = i ;
}
else if (cnt[i][0] == cnt[index][0]) {
int j = 1, k = 1 ;
while (j < int(cnt[i].size()) && k < int(cnt[index].size()) && cnt[i][j] == cnt[index][k]) j++, k++ ;
if (j >= int(cnt[i].size())) index = i ;
else if (k < int(cnt[index].size()) && cnt[i][j] < cnt[index][k]) index = i ;
}
}
}
return index ;
}
/*
int main(){
ios ;
int n ;
cin >> n ;
int p[n] ;
int s[n] ;
int d[n] ;
for (int i = 0 ; i < n ; i++)
cin >> p[i] ;
for (int i = 0 ; i < n - 1 ; i++)
cin >> s[i] ;
for (int i = 0 ; i < n - 1 ; i++)
cin >> d[i] ;
int ans = LocateCentre(n, p, s, d) ;
cout << ans << endl ;
}
*/
Compilation message
traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:43:6: warning: unused variable 'rand' [-Wunused-variable]
43 | ll rand = dfs(0, -1, p) ;
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
32 ms |
47340 KB |
Output is correct |
2 |
Correct |
32 ms |
47340 KB |
Output is correct |
3 |
Correct |
32 ms |
47340 KB |
Output is correct |
4 |
Correct |
32 ms |
47340 KB |
Output is correct |
5 |
Correct |
33 ms |
47340 KB |
Output is correct |
6 |
Correct |
34 ms |
47340 KB |
Output is correct |
7 |
Correct |
32 ms |
47340 KB |
Output is correct |
8 |
Correct |
32 ms |
47340 KB |
Output is correct |
9 |
Correct |
33 ms |
47340 KB |
Output is correct |
10 |
Correct |
33 ms |
47340 KB |
Output is correct |
11 |
Correct |
32 ms |
47340 KB |
Output is correct |
12 |
Correct |
33 ms |
47340 KB |
Output is correct |
13 |
Correct |
32 ms |
47340 KB |
Output is correct |
14 |
Correct |
32 ms |
47340 KB |
Output is correct |
15 |
Correct |
34 ms |
47340 KB |
Output is correct |
16 |
Correct |
34 ms |
47340 KB |
Output is correct |
17 |
Correct |
32 ms |
47340 KB |
Output is correct |
18 |
Correct |
32 ms |
47340 KB |
Output is correct |
19 |
Correct |
32 ms |
47340 KB |
Output is correct |
20 |
Correct |
32 ms |
47340 KB |
Output is correct |
21 |
Correct |
32 ms |
47340 KB |
Output is correct |
22 |
Correct |
32 ms |
47340 KB |
Output is correct |
23 |
Correct |
32 ms |
47340 KB |
Output is correct |
24 |
Correct |
32 ms |
47320 KB |
Output is correct |
25 |
Correct |
32 ms |
47340 KB |
Output is correct |
26 |
Correct |
34 ms |
47468 KB |
Output is correct |
27 |
Correct |
32 ms |
47340 KB |
Output is correct |
28 |
Correct |
32 ms |
47340 KB |
Output is correct |
29 |
Correct |
33 ms |
47340 KB |
Output is correct |
30 |
Correct |
33 ms |
47340 KB |
Output is correct |
31 |
Correct |
33 ms |
47340 KB |
Output is correct |
32 |
Correct |
33 ms |
47468 KB |
Output is correct |
33 |
Correct |
33 ms |
47412 KB |
Output is correct |
34 |
Correct |
32 ms |
47340 KB |
Output is correct |
35 |
Correct |
33 ms |
47468 KB |
Output is correct |
36 |
Correct |
37 ms |
47468 KB |
Output is correct |
37 |
Correct |
34 ms |
47468 KB |
Output is correct |
38 |
Correct |
33 ms |
47468 KB |
Output is correct |
39 |
Correct |
34 ms |
47468 KB |
Output is correct |
40 |
Correct |
33 ms |
47468 KB |
Output is correct |
41 |
Correct |
34 ms |
47468 KB |
Output is correct |
42 |
Correct |
33 ms |
47468 KB |
Output is correct |
43 |
Correct |
33 ms |
47340 KB |
Output is correct |
44 |
Correct |
32 ms |
47340 KB |
Output is correct |
45 |
Correct |
33 ms |
47340 KB |
Output is correct |
46 |
Correct |
33 ms |
47340 KB |
Output is correct |
47 |
Correct |
33 ms |
47340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
32 ms |
47340 KB |
Output is correct |
2 |
Correct |
32 ms |
47340 KB |
Output is correct |
3 |
Correct |
32 ms |
47340 KB |
Output is correct |
4 |
Correct |
32 ms |
47340 KB |
Output is correct |
5 |
Correct |
33 ms |
47340 KB |
Output is correct |
6 |
Correct |
34 ms |
47340 KB |
Output is correct |
7 |
Correct |
32 ms |
47340 KB |
Output is correct |
8 |
Correct |
32 ms |
47340 KB |
Output is correct |
9 |
Correct |
33 ms |
47340 KB |
Output is correct |
10 |
Correct |
33 ms |
47340 KB |
Output is correct |
11 |
Correct |
32 ms |
47340 KB |
Output is correct |
12 |
Correct |
33 ms |
47340 KB |
Output is correct |
13 |
Correct |
32 ms |
47340 KB |
Output is correct |
14 |
Correct |
32 ms |
47340 KB |
Output is correct |
15 |
Correct |
34 ms |
47340 KB |
Output is correct |
16 |
Correct |
34 ms |
47340 KB |
Output is correct |
17 |
Correct |
32 ms |
47340 KB |
Output is correct |
18 |
Correct |
32 ms |
47340 KB |
Output is correct |
19 |
Correct |
32 ms |
47340 KB |
Output is correct |
20 |
Correct |
32 ms |
47340 KB |
Output is correct |
21 |
Correct |
32 ms |
47340 KB |
Output is correct |
22 |
Correct |
32 ms |
47340 KB |
Output is correct |
23 |
Correct |
32 ms |
47340 KB |
Output is correct |
24 |
Correct |
32 ms |
47320 KB |
Output is correct |
25 |
Correct |
32 ms |
47340 KB |
Output is correct |
26 |
Correct |
34 ms |
47468 KB |
Output is correct |
27 |
Correct |
32 ms |
47340 KB |
Output is correct |
28 |
Correct |
32 ms |
47340 KB |
Output is correct |
29 |
Correct |
33 ms |
47340 KB |
Output is correct |
30 |
Correct |
33 ms |
47340 KB |
Output is correct |
31 |
Correct |
33 ms |
47340 KB |
Output is correct |
32 |
Correct |
33 ms |
47468 KB |
Output is correct |
33 |
Correct |
33 ms |
47412 KB |
Output is correct |
34 |
Correct |
32 ms |
47340 KB |
Output is correct |
35 |
Correct |
33 ms |
47468 KB |
Output is correct |
36 |
Correct |
37 ms |
47468 KB |
Output is correct |
37 |
Correct |
34 ms |
47468 KB |
Output is correct |
38 |
Correct |
33 ms |
47468 KB |
Output is correct |
39 |
Correct |
34 ms |
47468 KB |
Output is correct |
40 |
Correct |
33 ms |
47468 KB |
Output is correct |
41 |
Correct |
34 ms |
47468 KB |
Output is correct |
42 |
Correct |
33 ms |
47468 KB |
Output is correct |
43 |
Correct |
33 ms |
47340 KB |
Output is correct |
44 |
Correct |
32 ms |
47340 KB |
Output is correct |
45 |
Correct |
33 ms |
47340 KB |
Output is correct |
46 |
Correct |
33 ms |
47340 KB |
Output is correct |
47 |
Correct |
33 ms |
47340 KB |
Output is correct |
48 |
Correct |
34 ms |
47244 KB |
Output is correct |
49 |
Correct |
32 ms |
47340 KB |
Output is correct |
50 |
Correct |
33 ms |
47340 KB |
Output is correct |
51 |
Correct |
32 ms |
47340 KB |
Output is correct |
52 |
Correct |
33 ms |
47468 KB |
Output is correct |
53 |
Correct |
33 ms |
47328 KB |
Output is correct |
54 |
Correct |
33 ms |
47340 KB |
Output is correct |
55 |
Correct |
34 ms |
47340 KB |
Output is correct |
56 |
Correct |
33 ms |
47340 KB |
Output is correct |
57 |
Correct |
33 ms |
47340 KB |
Output is correct |
58 |
Correct |
32 ms |
47468 KB |
Output is correct |
59 |
Correct |
32 ms |
47340 KB |
Output is correct |
60 |
Correct |
33 ms |
47340 KB |
Output is correct |
61 |
Correct |
33 ms |
47340 KB |
Output is correct |
62 |
Correct |
32 ms |
47340 KB |
Output is correct |
63 |
Correct |
33 ms |
47340 KB |
Output is correct |
64 |
Correct |
33 ms |
47340 KB |
Output is correct |
65 |
Correct |
33 ms |
47468 KB |
Output is correct |
66 |
Correct |
33 ms |
47340 KB |
Output is correct |
67 |
Correct |
33 ms |
47340 KB |
Output is correct |
68 |
Correct |
77 ms |
57324 KB |
Output is correct |
69 |
Correct |
96 ms |
67208 KB |
Output is correct |
70 |
Correct |
32 ms |
47340 KB |
Output is correct |
71 |
Correct |
126 ms |
77292 KB |
Output is correct |
72 |
Correct |
157 ms |
87404 KB |
Output is correct |
73 |
Correct |
193 ms |
97260 KB |
Output is correct |
74 |
Correct |
226 ms |
107372 KB |
Output is correct |
75 |
Correct |
260 ms |
117356 KB |
Output is correct |
76 |
Correct |
293 ms |
127212 KB |
Output is correct |
77 |
Correct |
319 ms |
137196 KB |
Output is correct |
78 |
Correct |
350 ms |
147052 KB |
Output is correct |
79 |
Correct |
390 ms |
157164 KB |
Output is correct |
80 |
Correct |
412 ms |
167148 KB |
Output is correct |
81 |
Correct |
32 ms |
47340 KB |
Output is correct |
82 |
Correct |
449 ms |
177132 KB |
Output is correct |
83 |
Correct |
488 ms |
187116 KB |
Output is correct |
84 |
Correct |
513 ms |
197100 KB |
Output is correct |
85 |
Correct |
542 ms |
206956 KB |
Output is correct |
86 |
Correct |
636 ms |
216976 KB |
Output is correct |
87 |
Correct |
616 ms |
226932 KB |
Output is correct |
88 |
Correct |
671 ms |
236908 KB |
Output is correct |
89 |
Correct |
665 ms |
246892 KB |
Output is correct |
90 |
Correct |
33 ms |
47340 KB |
Output is correct |
91 |
Correct |
34 ms |
47340 KB |
Output is correct |
92 |
Correct |
34 ms |
47340 KB |
Output is correct |
93 |
Correct |
34 ms |
47340 KB |
Output is correct |
94 |
Correct |
33 ms |
47340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
32 ms |
47340 KB |
Output is correct |
2 |
Correct |
32 ms |
47340 KB |
Output is correct |
3 |
Correct |
32 ms |
47340 KB |
Output is correct |
4 |
Correct |
32 ms |
47340 KB |
Output is correct |
5 |
Correct |
33 ms |
47340 KB |
Output is correct |
6 |
Correct |
34 ms |
47340 KB |
Output is correct |
7 |
Correct |
32 ms |
47340 KB |
Output is correct |
8 |
Correct |
32 ms |
47340 KB |
Output is correct |
9 |
Correct |
33 ms |
47340 KB |
Output is correct |
10 |
Correct |
33 ms |
47340 KB |
Output is correct |
11 |
Correct |
32 ms |
47340 KB |
Output is correct |
12 |
Correct |
33 ms |
47340 KB |
Output is correct |
13 |
Correct |
32 ms |
47340 KB |
Output is correct |
14 |
Correct |
32 ms |
47340 KB |
Output is correct |
15 |
Correct |
34 ms |
47340 KB |
Output is correct |
16 |
Correct |
34 ms |
47340 KB |
Output is correct |
17 |
Correct |
32 ms |
47340 KB |
Output is correct |
18 |
Correct |
32 ms |
47340 KB |
Output is correct |
19 |
Correct |
32 ms |
47340 KB |
Output is correct |
20 |
Correct |
32 ms |
47340 KB |
Output is correct |
21 |
Correct |
32 ms |
47340 KB |
Output is correct |
22 |
Correct |
32 ms |
47340 KB |
Output is correct |
23 |
Correct |
32 ms |
47340 KB |
Output is correct |
24 |
Correct |
32 ms |
47320 KB |
Output is correct |
25 |
Correct |
32 ms |
47340 KB |
Output is correct |
26 |
Correct |
34 ms |
47468 KB |
Output is correct |
27 |
Correct |
32 ms |
47340 KB |
Output is correct |
28 |
Correct |
32 ms |
47340 KB |
Output is correct |
29 |
Correct |
33 ms |
47340 KB |
Output is correct |
30 |
Correct |
33 ms |
47340 KB |
Output is correct |
31 |
Correct |
33 ms |
47340 KB |
Output is correct |
32 |
Correct |
33 ms |
47468 KB |
Output is correct |
33 |
Correct |
33 ms |
47412 KB |
Output is correct |
34 |
Correct |
32 ms |
47340 KB |
Output is correct |
35 |
Correct |
33 ms |
47468 KB |
Output is correct |
36 |
Correct |
37 ms |
47468 KB |
Output is correct |
37 |
Correct |
34 ms |
47468 KB |
Output is correct |
38 |
Correct |
33 ms |
47468 KB |
Output is correct |
39 |
Correct |
34 ms |
47468 KB |
Output is correct |
40 |
Correct |
33 ms |
47468 KB |
Output is correct |
41 |
Correct |
34 ms |
47468 KB |
Output is correct |
42 |
Correct |
33 ms |
47468 KB |
Output is correct |
43 |
Correct |
33 ms |
47340 KB |
Output is correct |
44 |
Correct |
32 ms |
47340 KB |
Output is correct |
45 |
Correct |
33 ms |
47340 KB |
Output is correct |
46 |
Correct |
33 ms |
47340 KB |
Output is correct |
47 |
Correct |
33 ms |
47340 KB |
Output is correct |
48 |
Incorrect |
33 ms |
47356 KB |
Output isn't correct |
49 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
32 ms |
47340 KB |
Output is correct |
2 |
Correct |
32 ms |
47340 KB |
Output is correct |
3 |
Correct |
32 ms |
47340 KB |
Output is correct |
4 |
Correct |
32 ms |
47340 KB |
Output is correct |
5 |
Correct |
33 ms |
47340 KB |
Output is correct |
6 |
Correct |
34 ms |
47340 KB |
Output is correct |
7 |
Correct |
32 ms |
47340 KB |
Output is correct |
8 |
Correct |
32 ms |
47340 KB |
Output is correct |
9 |
Correct |
33 ms |
47340 KB |
Output is correct |
10 |
Correct |
33 ms |
47340 KB |
Output is correct |
11 |
Correct |
32 ms |
47340 KB |
Output is correct |
12 |
Correct |
33 ms |
47340 KB |
Output is correct |
13 |
Correct |
32 ms |
47340 KB |
Output is correct |
14 |
Correct |
32 ms |
47340 KB |
Output is correct |
15 |
Correct |
34 ms |
47340 KB |
Output is correct |
16 |
Correct |
34 ms |
47340 KB |
Output is correct |
17 |
Correct |
32 ms |
47340 KB |
Output is correct |
18 |
Correct |
32 ms |
47340 KB |
Output is correct |
19 |
Correct |
32 ms |
47340 KB |
Output is correct |
20 |
Correct |
32 ms |
47340 KB |
Output is correct |
21 |
Correct |
32 ms |
47340 KB |
Output is correct |
22 |
Correct |
32 ms |
47340 KB |
Output is correct |
23 |
Correct |
32 ms |
47340 KB |
Output is correct |
24 |
Correct |
32 ms |
47320 KB |
Output is correct |
25 |
Correct |
32 ms |
47340 KB |
Output is correct |
26 |
Correct |
34 ms |
47468 KB |
Output is correct |
27 |
Correct |
32 ms |
47340 KB |
Output is correct |
28 |
Correct |
32 ms |
47340 KB |
Output is correct |
29 |
Correct |
33 ms |
47340 KB |
Output is correct |
30 |
Correct |
33 ms |
47340 KB |
Output is correct |
31 |
Correct |
33 ms |
47340 KB |
Output is correct |
32 |
Correct |
33 ms |
47468 KB |
Output is correct |
33 |
Correct |
33 ms |
47412 KB |
Output is correct |
34 |
Correct |
32 ms |
47340 KB |
Output is correct |
35 |
Correct |
33 ms |
47468 KB |
Output is correct |
36 |
Correct |
37 ms |
47468 KB |
Output is correct |
37 |
Correct |
34 ms |
47468 KB |
Output is correct |
38 |
Correct |
33 ms |
47468 KB |
Output is correct |
39 |
Correct |
34 ms |
47468 KB |
Output is correct |
40 |
Correct |
33 ms |
47468 KB |
Output is correct |
41 |
Correct |
34 ms |
47468 KB |
Output is correct |
42 |
Correct |
33 ms |
47468 KB |
Output is correct |
43 |
Correct |
33 ms |
47340 KB |
Output is correct |
44 |
Correct |
32 ms |
47340 KB |
Output is correct |
45 |
Correct |
33 ms |
47340 KB |
Output is correct |
46 |
Correct |
33 ms |
47340 KB |
Output is correct |
47 |
Correct |
33 ms |
47340 KB |
Output is correct |
48 |
Correct |
34 ms |
47244 KB |
Output is correct |
49 |
Correct |
32 ms |
47340 KB |
Output is correct |
50 |
Correct |
33 ms |
47340 KB |
Output is correct |
51 |
Correct |
32 ms |
47340 KB |
Output is correct |
52 |
Correct |
33 ms |
47468 KB |
Output is correct |
53 |
Correct |
33 ms |
47328 KB |
Output is correct |
54 |
Correct |
33 ms |
47340 KB |
Output is correct |
55 |
Correct |
34 ms |
47340 KB |
Output is correct |
56 |
Correct |
33 ms |
47340 KB |
Output is correct |
57 |
Correct |
33 ms |
47340 KB |
Output is correct |
58 |
Correct |
32 ms |
47468 KB |
Output is correct |
59 |
Correct |
32 ms |
47340 KB |
Output is correct |
60 |
Correct |
33 ms |
47340 KB |
Output is correct |
61 |
Correct |
33 ms |
47340 KB |
Output is correct |
62 |
Correct |
32 ms |
47340 KB |
Output is correct |
63 |
Correct |
33 ms |
47340 KB |
Output is correct |
64 |
Correct |
33 ms |
47340 KB |
Output is correct |
65 |
Correct |
33 ms |
47468 KB |
Output is correct |
66 |
Correct |
33 ms |
47340 KB |
Output is correct |
67 |
Correct |
33 ms |
47340 KB |
Output is correct |
68 |
Correct |
77 ms |
57324 KB |
Output is correct |
69 |
Correct |
96 ms |
67208 KB |
Output is correct |
70 |
Correct |
32 ms |
47340 KB |
Output is correct |
71 |
Correct |
126 ms |
77292 KB |
Output is correct |
72 |
Correct |
157 ms |
87404 KB |
Output is correct |
73 |
Correct |
193 ms |
97260 KB |
Output is correct |
74 |
Correct |
226 ms |
107372 KB |
Output is correct |
75 |
Correct |
260 ms |
117356 KB |
Output is correct |
76 |
Correct |
293 ms |
127212 KB |
Output is correct |
77 |
Correct |
319 ms |
137196 KB |
Output is correct |
78 |
Correct |
350 ms |
147052 KB |
Output is correct |
79 |
Correct |
390 ms |
157164 KB |
Output is correct |
80 |
Correct |
412 ms |
167148 KB |
Output is correct |
81 |
Correct |
32 ms |
47340 KB |
Output is correct |
82 |
Correct |
449 ms |
177132 KB |
Output is correct |
83 |
Correct |
488 ms |
187116 KB |
Output is correct |
84 |
Correct |
513 ms |
197100 KB |
Output is correct |
85 |
Correct |
542 ms |
206956 KB |
Output is correct |
86 |
Correct |
636 ms |
216976 KB |
Output is correct |
87 |
Correct |
616 ms |
226932 KB |
Output is correct |
88 |
Correct |
671 ms |
236908 KB |
Output is correct |
89 |
Correct |
665 ms |
246892 KB |
Output is correct |
90 |
Correct |
33 ms |
47340 KB |
Output is correct |
91 |
Correct |
34 ms |
47340 KB |
Output is correct |
92 |
Correct |
34 ms |
47340 KB |
Output is correct |
93 |
Correct |
34 ms |
47340 KB |
Output is correct |
94 |
Correct |
33 ms |
47340 KB |
Output is correct |
95 |
Incorrect |
33 ms |
47356 KB |
Output isn't correct |
96 |
Halted |
0 ms |
0 KB |
- |