oj.uz

Submission #363247

# Submission time Handle Problem Language Result Execution time Memory
363247 2021-02-05T11:35:25 Z vm152 Traffic (IOI10_traffic) C++17
50 / 100
 671 ms 248172 KB 
#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()) ;
 	int start = index + 1 ;
 	for (int i = start ; 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) ;
      |      ^~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 47340 KB Output is correct
2 Correct 32 ms 47468 KB Output is correct
3 Correct 32 ms 47340 KB Output is correct
4 Correct 32 ms 47340 KB Output is correct
5 Correct 32 ms 47340 KB Output is correct
6 Correct 32 ms 47360 KB Output is correct
7 Correct 33 ms 47340 KB Output is correct
8 Correct 34 ms 47340 KB Output is correct
9 Correct 32 ms 47340 KB Output is correct
10 Correct 32 ms 47360 KB Output is correct
11 Correct 33 ms 47352 KB Output is correct
12 Correct 32 ms 47340 KB Output is correct
13 Correct 32 ms 47268 KB Output is correct
14 Correct 32 ms 47340 KB Output is correct
15 Correct 36 ms 47340 KB Output is correct
16 Correct 32 ms 47340 KB Output is correct
17 Correct 32 ms 47360 KB Output is correct
18 Correct 32 ms 47340 KB Output is correct
19 Correct 32 ms 47340 KB Output is correct
20 Correct 33 ms 47340 KB Output is correct
21 Correct 33 ms 47340 KB Output is correct
22 Correct 32 ms 47340 KB Output is correct
23 Correct 35 ms 47468 KB Output is correct
24 Correct 33 ms 47340 KB Output is correct
25 Correct 32 ms 47360 KB Output is correct
26 Correct 32 ms 47340 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 33 ms 47340 KB Output is correct
29 Correct 33 ms 47468 KB Output is correct
30 Correct 33 ms 47468 KB Output is correct
31 Correct 32 ms 47468 KB Output is correct
32 Correct 33 ms 47468 KB Output is correct
33 Correct 33 ms 47488 KB Output is correct
34 Correct 32 ms 47340 KB Output is correct
35 Correct 35 ms 47468 KB Output is correct
36 Correct 39 ms 47468 KB Output is correct
37 Correct 33 ms 47468 KB Output is correct
38 Correct 33 ms 47468 KB Output is correct
39 Correct 33 ms 47488 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 47472 KB Output is correct
43 Correct 33 ms 47340 KB Output is correct
44 Correct 33 ms 47340 KB Output is correct
45 Correct 33 ms 47340 KB Output is correct
46 Correct 33 ms 47212 KB Output is correct
47 Correct 33 ms 47340 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 47340 KB Output is correct
2 Correct 32 ms 47468 KB Output is correct
3 Correct 32 ms 47340 KB Output is correct
4 Correct 32 ms 47340 KB Output is correct
5 Correct 32 ms 47340 KB Output is correct
6 Correct 32 ms 47360 KB Output is correct
7 Correct 33 ms 47340 KB Output is correct
8 Correct 34 ms 47340 KB Output is correct
9 Correct 32 ms 47340 KB Output is correct
10 Correct 32 ms 47360 KB Output is correct
11 Correct 33 ms 47352 KB Output is correct
12 Correct 32 ms 47340 KB Output is correct
13 Correct 32 ms 47268 KB Output is correct
14 Correct 32 ms 47340 KB Output is correct
15 Correct 36 ms 47340 KB Output is correct
16 Correct 32 ms 47340 KB Output is correct
17 Correct 32 ms 47360 KB Output is correct
18 Correct 32 ms 47340 KB Output is correct
19 Correct 32 ms 47340 KB Output is correct
20 Correct 33 ms 47340 KB Output is correct
21 Correct 33 ms 47340 KB Output is correct
22 Correct 32 ms 47340 KB Output is correct
23 Correct 35 ms 47468 KB Output is correct
24 Correct 33 ms 47340 KB Output is correct
25 Correct 32 ms 47360 KB Output is correct
26 Correct 32 ms 47340 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 33 ms 47340 KB Output is correct
29 Correct 33 ms 47468 KB Output is correct
30 Correct 33 ms 47468 KB Output is correct
31 Correct 32 ms 47468 KB Output is correct
32 Correct 33 ms 47468 KB Output is correct
33 Correct 33 ms 47488 KB Output is correct
34 Correct 32 ms 47340 KB Output is correct
35 Correct 35 ms 47468 KB Output is correct
36 Correct 39 ms 47468 KB Output is correct
37 Correct 33 ms 47468 KB Output is correct
38 Correct 33 ms 47468 KB Output is correct
39 Correct 33 ms 47488 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 47472 KB Output is correct
43 Correct 33 ms 47340 KB Output is correct
44 Correct 33 ms 47340 KB Output is correct
45 Correct 33 ms 47340 KB Output is correct
46 Correct 33 ms 47212 KB Output is correct
47 Correct 33 ms 47340 KB Output is correct
48 Correct 32 ms 47340 KB Output is correct
49 Correct 33 ms 47340 KB Output is correct
50 Correct 36 ms 47340 KB Output is correct
51 Correct 32 ms 47340 KB Output is correct
52 Correct 32 ms 47340 KB Output is correct
53 Correct 32 ms 47340 KB Output is correct
54 Correct 33 ms 47340 KB Output is correct
55 Correct 32 ms 47340 KB Output is correct
56 Correct 32 ms 47340 KB Output is correct
57 Correct 32 ms 47340 KB Output is correct
58 Correct 33 ms 47340 KB Output is correct
59 Correct 33 ms 47340 KB Output is correct
60 Correct 33 ms 47340 KB Output is correct
61 Correct 33 ms 47372 KB Output is correct
62 Correct 33 ms 47340 KB Output is correct
63 Correct 37 ms 47340 KB Output is correct
64 Correct 32 ms 47340 KB Output is correct
65 Correct 32 ms 47340 KB Output is correct
66 Correct 32 ms 47340 KB Output is correct
67 Correct 32 ms 47340 KB Output is correct
68 Correct 66 ms 58220 KB Output is correct
69 Correct 101 ms 69044 KB Output is correct
70 Correct 33 ms 47340 KB Output is correct
71 Correct 133 ms 79212 KB Output is correct
72 Correct 164 ms 89196 KB Output is correct
73 Correct 197 ms 99180 KB Output is correct
74 Correct 250 ms 109164 KB Output is correct
75 Correct 253 ms 119148 KB Output is correct
76 Correct 290 ms 129004 KB Output is correct
77 Correct 319 ms 138988 KB Output is correct
78 Correct 357 ms 148924 KB Output is correct
79 Correct 413 ms 158828 KB Output is correct
80 Correct 415 ms 168812 KB Output is correct
81 Correct 32 ms 47340 KB Output is correct
82 Correct 446 ms 178796 KB Output is correct
83 Correct 482 ms 188908 KB Output is correct
84 Correct 513 ms 198712 KB Output is correct
85 Correct 556 ms 209944 KB Output is correct
86 Correct 582 ms 221164 KB Output is correct
87 Correct 624 ms 230436 KB Output is correct
88 Correct 636 ms 240580 KB Output is correct
89 Correct 671 ms 248172 KB Output is correct
90 Correct 33 ms 47340 KB Output is correct
91 Correct 32 ms 47340 KB Output is correct
92 Correct 33 ms 47340 KB Output is correct
93 Correct 33 ms 47340 KB Output is correct
94 Correct 32 ms 47340 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 47340 KB Output is correct
2 Correct 32 ms 47468 KB Output is correct
3 Correct 32 ms 47340 KB Output is correct
4 Correct 32 ms 47340 KB Output is correct
5 Correct 32 ms 47340 KB Output is correct
6 Correct 32 ms 47360 KB Output is correct
7 Correct 33 ms 47340 KB Output is correct
8 Correct 34 ms 47340 KB Output is correct
9 Correct 32 ms 47340 KB Output is correct
10 Correct 32 ms 47360 KB Output is correct
11 Correct 33 ms 47352 KB Output is correct
12 Correct 32 ms 47340 KB Output is correct
13 Correct 32 ms 47268 KB Output is correct
14 Correct 32 ms 47340 KB Output is correct
15 Correct 36 ms 47340 KB Output is correct
16 Correct 32 ms 47340 KB Output is correct
17 Correct 32 ms 47360 KB Output is correct
18 Correct 32 ms 47340 KB Output is correct
19 Correct 32 ms 47340 KB Output is correct
20 Correct 33 ms 47340 KB Output is correct
21 Correct 33 ms 47340 KB Output is correct
22 Correct 32 ms 47340 KB Output is correct
23 Correct 35 ms 47468 KB Output is correct
24 Correct 33 ms 47340 KB Output is correct
25 Correct 32 ms 47360 KB Output is correct
26 Correct 32 ms 47340 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 33 ms 47340 KB Output is correct
29 Correct 33 ms 47468 KB Output is correct
30 Correct 33 ms 47468 KB Output is correct
31 Correct 32 ms 47468 KB Output is correct
32 Correct 33 ms 47468 KB Output is correct
33 Correct 33 ms 47488 KB Output is correct
34 Correct 32 ms 47340 KB Output is correct
35 Correct 35 ms 47468 KB Output is correct
36 Correct 39 ms 47468 KB Output is correct
37 Correct 33 ms 47468 KB Output is correct
38 Correct 33 ms 47468 KB Output is correct
39 Correct 33 ms 47488 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 47472 KB Output is correct
43 Correct 33 ms 47340 KB Output is correct
44 Correct 33 ms 47340 KB Output is correct
45 Correct 33 ms 47340 KB Output is correct
46 Correct 33 ms 47212 KB Output is correct
47 Correct 33 ms 47340 KB Output is correct
48 Incorrect 34 ms 47340 KB Output isn't correct
49 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 47340 KB Output is correct
2 Correct 32 ms 47468 KB Output is correct
3 Correct 32 ms 47340 KB Output is correct
4 Correct 32 ms 47340 KB Output is correct
5 Correct 32 ms 47340 KB Output is correct
6 Correct 32 ms 47360 KB Output is correct
7 Correct 33 ms 47340 KB Output is correct
8 Correct 34 ms 47340 KB Output is correct
9 Correct 32 ms 47340 KB Output is correct
10 Correct 32 ms 47360 KB Output is correct
11 Correct 33 ms 47352 KB Output is correct
12 Correct 32 ms 47340 KB Output is correct
13 Correct 32 ms 47268 KB Output is correct
14 Correct 32 ms 47340 KB Output is correct
15 Correct 36 ms 47340 KB Output is correct
16 Correct 32 ms 47340 KB Output is correct
17 Correct 32 ms 47360 KB Output is correct
18 Correct 32 ms 47340 KB Output is correct
19 Correct 32 ms 47340 KB Output is correct
20 Correct 33 ms 47340 KB Output is correct
21 Correct 33 ms 47340 KB Output is correct
22 Correct 32 ms 47340 KB Output is correct
23 Correct 35 ms 47468 KB Output is correct
24 Correct 33 ms 47340 KB Output is correct
25 Correct 32 ms 47360 KB Output is correct
26 Correct 32 ms 47340 KB Output is correct
27 Correct 33 ms 47340 KB Output is correct
28 Correct 33 ms 47340 KB Output is correct
29 Correct 33 ms 47468 KB Output is correct
30 Correct 33 ms 47468 KB Output is correct
31 Correct 32 ms 47468 KB Output is correct
32 Correct 33 ms 47468 KB Output is correct
33 Correct 33 ms 47488 KB Output is correct
34 Correct 32 ms 47340 KB Output is correct
35 Correct 35 ms 47468 KB Output is correct
36 Correct 39 ms 47468 KB Output is correct
37 Correct 33 ms 47468 KB Output is correct
38 Correct 33 ms 47468 KB Output is correct
39 Correct 33 ms 47488 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 47472 KB Output is correct
43 Correct 33 ms 47340 KB Output is correct
44 Correct 33 ms 47340 KB Output is correct
45 Correct 33 ms 47340 KB Output is correct
46 Correct 33 ms 47212 KB Output is correct
47 Correct 33 ms 47340 KB Output is correct
48 Correct 32 ms 47340 KB Output is correct
49 Correct 33 ms 47340 KB Output is correct
50 Correct 36 ms 47340 KB Output is correct
51 Correct 32 ms 47340 KB Output is correct
52 Correct 32 ms 47340 KB Output is correct
53 Correct 32 ms 47340 KB Output is correct
54 Correct 33 ms 47340 KB Output is correct
55 Correct 32 ms 47340 KB Output is correct
56 Correct 32 ms 47340 KB Output is correct
57 Correct 32 ms 47340 KB Output is correct
58 Correct 33 ms 47340 KB Output is correct
59 Correct 33 ms 47340 KB Output is correct
60 Correct 33 ms 47340 KB Output is correct
61 Correct 33 ms 47372 KB Output is correct
62 Correct 33 ms 47340 KB Output is correct
63 Correct 37 ms 47340 KB Output is correct
64 Correct 32 ms 47340 KB Output is correct
65 Correct 32 ms 47340 KB Output is correct
66 Correct 32 ms 47340 KB Output is correct
67 Correct 32 ms 47340 KB Output is correct
68 Correct 66 ms 58220 KB Output is correct
69 Correct 101 ms 69044 KB Output is correct
70 Correct 33 ms 47340 KB Output is correct
71 Correct 133 ms 79212 KB Output is correct
72 Correct 164 ms 89196 KB Output is correct
73 Correct 197 ms 99180 KB Output is correct
74 Correct 250 ms 109164 KB Output is correct
75 Correct 253 ms 119148 KB Output is correct
76 Correct 290 ms 129004 KB Output is correct
77 Correct 319 ms 138988 KB Output is correct
78 Correct 357 ms 148924 KB Output is correct
79 Correct 413 ms 158828 KB Output is correct
80 Correct 415 ms 168812 KB Output is correct
81 Correct 32 ms 47340 KB Output is correct
82 Correct 446 ms 178796 KB Output is correct
83 Correct 482 ms 188908 KB Output is correct
84 Correct 513 ms 198712 KB Output is correct
85 Correct 556 ms 209944 KB Output is correct
86 Correct 582 ms 221164 KB Output is correct
87 Correct 624 ms 230436 KB Output is correct
88 Correct 636 ms 240580 KB Output is correct
89 Correct 671 ms 248172 KB Output is correct
90 Correct 33 ms 47340 KB Output is correct
91 Correct 32 ms 47340 KB Output is correct
92 Correct 33 ms 47340 KB Output is correct
93 Correct 33 ms 47340 KB Output is correct
94 Correct 32 ms 47340 KB Output is correct
95 Incorrect 34 ms 47340 KB Output isn't correct
96 Halted 0 ms 0 KB -