oj.uz

답안 #283392

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
283392 2020-08-25T15:36:44 Z kevlee Traffic (IOI10_traffic) C++17
50 / 100
 630 ms 155136 KB 
#include "traffic.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mod 1000000007
#define h1 7897897897897897
#define h2 7897466719774591
#define b1 98762051
#define b2 98765431
#define inf 1000000000
#define pi 3.1415926535897932384626
#define LMAX 9223372036854775807
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pii>
#define SET(a, b) memset(a, b, sizeof(a));
#define all(x) (x).begin(), (x).end()
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (a); i >= (b); i--)
int a[1000005], v[1000005], sum;
vi edges[1000005];
int dfs(int x, int p) {
  int children = 0;
  for (auto y: edges[x]) {
    if (y == p) continue;
    int t = dfs(y, x);
    children += t;
    a[x] = max(a[x], children);
  }
  a[x] = max(a[x], sum - children - v[x]);
  return children + v[x];
}
int LocateCentre(int n, int P[], int s[], int d[]) {
  FOR(i, 0, n-1) {
    v[i] = P[i];
    sum += v[i];
  }
  FOR(i, 0, n-2) {
    edges[s[i]].pb(d[i]);
    edges[d[i]].pb(s[i]);
  }
  int useless = dfs(0, -1), minn = 2 * inf, ans;
  FOR(i, 0, n-1) {
    if (a[i] < minn) {
      minn = a[i];
      ans = i;
    }
  }
  return ans;
}

Compilation message

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:47:7: warning: unused variable 'useless' [-Wunused-variable]
   47 |   int useless = dfs(0, -1), minn = 2 * inf, ans;
      |       ^~~~~~~
traffic.cpp:54:10: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   54 |   return ans;
      |          ^~~

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 23808 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 20 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 19 ms 23808 KB Output is correct
8 Correct 17 ms 23808 KB Output is correct
9 Correct 19 ms 23808 KB Output is correct
10 Correct 17 ms 23808 KB Output is correct
11 Correct 17 ms 23808 KB Output is correct
12 Correct 18 ms 23936 KB Output is correct
13 Correct 16 ms 23808 KB Output is correct
14 Correct 18 ms 23808 KB Output is correct
15 Correct 16 ms 23808 KB Output is correct
16 Correct 18 ms 23808 KB Output is correct
17 Correct 18 ms 23808 KB Output is correct
18 Correct 18 ms 23808 KB Output is correct
19 Correct 18 ms 23808 KB Output is correct
20 Correct 17 ms 23808 KB Output is correct
21 Correct 16 ms 23872 KB Output is correct
22 Correct 17 ms 23808 KB Output is correct
23 Correct 16 ms 23808 KB Output is correct
24 Correct 17 ms 23808 KB Output is correct
25 Correct 17 ms 23808 KB Output is correct
26 Correct 17 ms 23808 KB Output is correct
27 Correct 17 ms 23808 KB Output is correct
28 Correct 17 ms 23936 KB Output is correct
29 Correct 16 ms 23936 KB Output is correct
30 Correct 17 ms 23936 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 17 ms 23936 KB Output is correct
33 Correct 16 ms 23936 KB Output is correct
34 Correct 16 ms 23808 KB Output is correct
35 Correct 18 ms 23936 KB Output is correct
36 Correct 18 ms 23936 KB Output is correct
37 Correct 17 ms 23936 KB Output is correct
38 Correct 17 ms 23936 KB Output is correct
39 Correct 17 ms 23936 KB Output is correct
40 Correct 17 ms 23936 KB Output is correct
41 Correct 17 ms 23936 KB Output is correct
42 Correct 17 ms 23932 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 16 ms 23808 KB Output is correct
45 Correct 16 ms 23808 KB Output is correct
46 Correct 16 ms 23808 KB Output is correct
47 Correct 17 ms 23808 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 23808 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 20 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 19 ms 23808 KB Output is correct
8 Correct 17 ms 23808 KB Output is correct
9 Correct 19 ms 23808 KB Output is correct
10 Correct 17 ms 23808 KB Output is correct
11 Correct 17 ms 23808 KB Output is correct
12 Correct 18 ms 23936 KB Output is correct
13 Correct 16 ms 23808 KB Output is correct
14 Correct 18 ms 23808 KB Output is correct
15 Correct 16 ms 23808 KB Output is correct
16 Correct 18 ms 23808 KB Output is correct
17 Correct 18 ms 23808 KB Output is correct
18 Correct 18 ms 23808 KB Output is correct
19 Correct 18 ms 23808 KB Output is correct
20 Correct 17 ms 23808 KB Output is correct
21 Correct 16 ms 23872 KB Output is correct
22 Correct 17 ms 23808 KB Output is correct
23 Correct 16 ms 23808 KB Output is correct
24 Correct 17 ms 23808 KB Output is correct
25 Correct 17 ms 23808 KB Output is correct
26 Correct 17 ms 23808 KB Output is correct
27 Correct 17 ms 23808 KB Output is correct
28 Correct 17 ms 23936 KB Output is correct
29 Correct 16 ms 23936 KB Output is correct
30 Correct 17 ms 23936 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 17 ms 23936 KB Output is correct
33 Correct 16 ms 23936 KB Output is correct
34 Correct 16 ms 23808 KB Output is correct
35 Correct 18 ms 23936 KB Output is correct
36 Correct 18 ms 23936 KB Output is correct
37 Correct 17 ms 23936 KB Output is correct
38 Correct 17 ms 23936 KB Output is correct
39 Correct 17 ms 23936 KB Output is correct
40 Correct 17 ms 23936 KB Output is correct
41 Correct 17 ms 23936 KB Output is correct
42 Correct 17 ms 23932 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 16 ms 23808 KB Output is correct
45 Correct 16 ms 23808 KB Output is correct
46 Correct 16 ms 23808 KB Output is correct
47 Correct 17 ms 23808 KB Output is correct
48 Correct 16 ms 23808 KB Output is correct
49 Correct 17 ms 23808 KB Output is correct
50 Correct 17 ms 23808 KB Output is correct
51 Correct 16 ms 23808 KB Output is correct
52 Correct 16 ms 23808 KB Output is correct
53 Correct 17 ms 23808 KB Output is correct
54 Correct 16 ms 23808 KB Output is correct
55 Correct 16 ms 23808 KB Output is correct
56 Correct 17 ms 23808 KB Output is correct
57 Correct 17 ms 23808 KB Output is correct
58 Correct 16 ms 23808 KB Output is correct
59 Correct 16 ms 23808 KB Output is correct
60 Correct 16 ms 23808 KB Output is correct
61 Correct 16 ms 23808 KB Output is correct
62 Correct 17 ms 23776 KB Output is correct
63 Correct 17 ms 23808 KB Output is correct
64 Correct 16 ms 23808 KB Output is correct
65 Correct 16 ms 23808 KB Output is correct
66 Correct 17 ms 23808 KB Output is correct
67 Correct 17 ms 23808 KB Output is correct
68 Correct 46 ms 30456 KB Output is correct
69 Correct 74 ms 36856 KB Output is correct
70 Correct 16 ms 23808 KB Output is correct
71 Correct 104 ms 43384 KB Output is correct
72 Correct 135 ms 50168 KB Output is correct
73 Correct 163 ms 56568 KB Output is correct
74 Correct 190 ms 63224 KB Output is correct
75 Correct 220 ms 69836 KB Output is correct
76 Correct 246 ms 76284 KB Output is correct
77 Correct 278 ms 82936 KB Output is correct
78 Correct 305 ms 89464 KB Output is correct
79 Correct 365 ms 96120 KB Output is correct
80 Correct 361 ms 102648 KB Output is correct
81 Correct 16 ms 23808 KB Output is correct
82 Correct 392 ms 109328 KB Output is correct
83 Correct 421 ms 115832 KB Output is correct
84 Correct 469 ms 122284 KB Output is correct
85 Correct 490 ms 128960 KB Output is correct
86 Correct 516 ms 135416 KB Output is correct
87 Correct 535 ms 142072 KB Output is correct
88 Correct 571 ms 148668 KB Output is correct
89 Correct 630 ms 155136 KB Output is correct
90 Correct 17 ms 23808 KB Output is correct
91 Correct 16 ms 23808 KB Output is correct
92 Correct 17 ms 23808 KB Output is correct
93 Correct 20 ms 23808 KB Output is correct
94 Correct 19 ms 23808 KB Output is correct

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 23808 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 20 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 19 ms 23808 KB Output is correct
8 Correct 17 ms 23808 KB Output is correct
9 Correct 19 ms 23808 KB Output is correct
10 Correct 17 ms 23808 KB Output is correct
11 Correct 17 ms 23808 KB Output is correct
12 Correct 18 ms 23936 KB Output is correct
13 Correct 16 ms 23808 KB Output is correct
14 Correct 18 ms 23808 KB Output is correct
15 Correct 16 ms 23808 KB Output is correct
16 Correct 18 ms 23808 KB Output is correct
17 Correct 18 ms 23808 KB Output is correct
18 Correct 18 ms 23808 KB Output is correct
19 Correct 18 ms 23808 KB Output is correct
20 Correct 17 ms 23808 KB Output is correct
21 Correct 16 ms 23872 KB Output is correct
22 Correct 17 ms 23808 KB Output is correct
23 Correct 16 ms 23808 KB Output is correct
24 Correct 17 ms 23808 KB Output is correct
25 Correct 17 ms 23808 KB Output is correct
26 Correct 17 ms 23808 KB Output is correct
27 Correct 17 ms 23808 KB Output is correct
28 Correct 17 ms 23936 KB Output is correct
29 Correct 16 ms 23936 KB Output is correct
30 Correct 17 ms 23936 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 17 ms 23936 KB Output is correct
33 Correct 16 ms 23936 KB Output is correct
34 Correct 16 ms 23808 KB Output is correct
35 Correct 18 ms 23936 KB Output is correct
36 Correct 18 ms 23936 KB Output is correct
37 Correct 17 ms 23936 KB Output is correct
38 Correct 17 ms 23936 KB Output is correct
39 Correct 17 ms 23936 KB Output is correct
40 Correct 17 ms 23936 KB Output is correct
41 Correct 17 ms 23936 KB Output is correct
42 Correct 17 ms 23932 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 16 ms 23808 KB Output is correct
45 Correct 16 ms 23808 KB Output is correct
46 Correct 16 ms 23808 KB Output is correct
47 Correct 17 ms 23808 KB Output is correct
48 Incorrect 16 ms 23808 KB Output isn't correct
49 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 23808 KB Output is correct
2 Correct 16 ms 23808 KB Output is correct
3 Correct 20 ms 23808 KB Output is correct
4 Correct 16 ms 23808 KB Output is correct
5 Correct 16 ms 23808 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 19 ms 23808 KB Output is correct
8 Correct 17 ms 23808 KB Output is correct
9 Correct 19 ms 23808 KB Output is correct
10 Correct 17 ms 23808 KB Output is correct
11 Correct 17 ms 23808 KB Output is correct
12 Correct 18 ms 23936 KB Output is correct
13 Correct 16 ms 23808 KB Output is correct
14 Correct 18 ms 23808 KB Output is correct
15 Correct 16 ms 23808 KB Output is correct
16 Correct 18 ms 23808 KB Output is correct
17 Correct 18 ms 23808 KB Output is correct
18 Correct 18 ms 23808 KB Output is correct
19 Correct 18 ms 23808 KB Output is correct
20 Correct 17 ms 23808 KB Output is correct
21 Correct 16 ms 23872 KB Output is correct
22 Correct 17 ms 23808 KB Output is correct
23 Correct 16 ms 23808 KB Output is correct
24 Correct 17 ms 23808 KB Output is correct
25 Correct 17 ms 23808 KB Output is correct
26 Correct 17 ms 23808 KB Output is correct
27 Correct 17 ms 23808 KB Output is correct
28 Correct 17 ms 23936 KB Output is correct
29 Correct 16 ms 23936 KB Output is correct
30 Correct 17 ms 23936 KB Output is correct
31 Correct 16 ms 23936 KB Output is correct
32 Correct 17 ms 23936 KB Output is correct
33 Correct 16 ms 23936 KB Output is correct
34 Correct 16 ms 23808 KB Output is correct
35 Correct 18 ms 23936 KB Output is correct
36 Correct 18 ms 23936 KB Output is correct
37 Correct 17 ms 23936 KB Output is correct
38 Correct 17 ms 23936 KB Output is correct
39 Correct 17 ms 23936 KB Output is correct
40 Correct 17 ms 23936 KB Output is correct
41 Correct 17 ms 23936 KB Output is correct
42 Correct 17 ms 23932 KB Output is correct
43 Correct 16 ms 23808 KB Output is correct
44 Correct 16 ms 23808 KB Output is correct
45 Correct 16 ms 23808 KB Output is correct
46 Correct 16 ms 23808 KB Output is correct
47 Correct 17 ms 23808 KB Output is correct
48 Correct 16 ms 23808 KB Output is correct
49 Correct 17 ms 23808 KB Output is correct
50 Correct 17 ms 23808 KB Output is correct
51 Correct 16 ms 23808 KB Output is correct
52 Correct 16 ms 23808 KB Output is correct
53 Correct 17 ms 23808 KB Output is correct
54 Correct 16 ms 23808 KB Output is correct
55 Correct 16 ms 23808 KB Output is correct
56 Correct 17 ms 23808 KB Output is correct
57 Correct 17 ms 23808 KB Output is correct
58 Correct 16 ms 23808 KB Output is correct
59 Correct 16 ms 23808 KB Output is correct
60 Correct 16 ms 23808 KB Output is correct
61 Correct 16 ms 23808 KB Output is correct
62 Correct 17 ms 23776 KB Output is correct
63 Correct 17 ms 23808 KB Output is correct
64 Correct 16 ms 23808 KB Output is correct
65 Correct 16 ms 23808 KB Output is correct
66 Correct 17 ms 23808 KB Output is correct
67 Correct 17 ms 23808 KB Output is correct
68 Correct 46 ms 30456 KB Output is correct
69 Correct 74 ms 36856 KB Output is correct
70 Correct 16 ms 23808 KB Output is correct
71 Correct 104 ms 43384 KB Output is correct
72 Correct 135 ms 50168 KB Output is correct
73 Correct 163 ms 56568 KB Output is correct
74 Correct 190 ms 63224 KB Output is correct
75 Correct 220 ms 69836 KB Output is correct
76 Correct 246 ms 76284 KB Output is correct
77 Correct 278 ms 82936 KB Output is correct
78 Correct 305 ms 89464 KB Output is correct
79 Correct 365 ms 96120 KB Output is correct
80 Correct 361 ms 102648 KB Output is correct
81 Correct 16 ms 23808 KB Output is correct
82 Correct 392 ms 109328 KB Output is correct
83 Correct 421 ms 115832 KB Output is correct
84 Correct 469 ms 122284 KB Output is correct
85 Correct 490 ms 128960 KB Output is correct
86 Correct 516 ms 135416 KB Output is correct
87 Correct 535 ms 142072 KB Output is correct
88 Correct 571 ms 148668 KB Output is correct
89 Correct 630 ms 155136 KB Output is correct
90 Correct 17 ms 23808 KB Output is correct
91 Correct 16 ms 23808 KB Output is correct
92 Correct 17 ms 23808 KB Output is correct
93 Correct 20 ms 23808 KB Output is correct
94 Correct 19 ms 23808 KB Output is correct
95 Incorrect 16 ms 23808 KB Output isn't correct
96 Halted 0 ms 0 KB -