oj.uz

Submission #342031

# Submission time Handle Problem Language Result Execution time Memory
342031 2021-01-01T06:49:34 Z freshmintt Traffic (IOI10_traffic) C++14
50 / 100
 603 ms 262148 KB 
#include <iostream>
#include <fstream>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <algorithm>
#include <cstdio>
#include <fstream>
#include <string.h>
#include <iterator> 
#include <list>
#include <cmath>
#include <math.h>
#include <unordered_map> 
#include <numeric>

using namespace std;
typedef pair<int,int> pi;
vector<int> adj[1000001]; // change
int people[1000001]; // change
set<int> sums[1000001]; // change
int subtree[1000001]; // change

void dfsSubtree(int node, int parent, int parentSum) {
  // sums[node].insert(parentSum); // record the cumulative sum from root
  subtree[node] += people[node];
  for (auto u: adj[node]) {
    if (u != parent) { // traverse to the next node, adding on the parentSum
    // the subtree sum of the next node must be returned and added
    dfsSubtree(u, node, parentSum + people[node]);
    subtree[node] += subtree[u]; // subtree u is the sum for the child
    sums[node].insert(subtree[u]);
  }
}
}

void dfsParents(int node, int parent, int parentSum) {
  sums[node].insert(parentSum);
  for (auto u : adj[node]) {
    if (u != parent) {

      int res = subtree[0]-subtree[u];
      // cout << "going from:  "<< node << " to " << u << ", parentsum: " << res <<  endl;
      // must send parentSum = entire tree sum - dest node subtree
      
      dfsParents(u, node, res);
      // subtree[node] += subtree[u]; // subtree u is the sum for the child
      // sums[node].insert(subtree[u]);
    }
  }
}

int LocateCentre(int N,int P[],int S[], int D[]) {
  for (int i = 0; i <N-1; i ++) {
    adj[S[i]].push_back(D[i]);
    adj[D[i]].push_back(S[i]);
    
  }
  for (int i = 0; i < N; i ++) {
    people[i] = P[i];
  }
  dfsSubtree(0, -1, 0);
  
  dfsParents(0, -1, 0);
  int minRoad = 1E12;
  int city = -1;
  for (int i = 0; i < N; i++) {
    
    if (*sums[i].rbegin() < minRoad) {
      minRoad = *sums[i].rbegin();
      city = i;
    }
  }
  return city;
}

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

Compilation message

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:66:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+12' to '2147483647' [-Woverflow]
   66 |   int minRoad = 1E12;
      |                 ^~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 70764 KB Output is correct
2 Correct 47 ms 70784 KB Output is correct
3 Correct 47 ms 70764 KB Output is correct
4 Correct 48 ms 70764 KB Output is correct
5 Correct 48 ms 70764 KB Output is correct
6 Correct 47 ms 70764 KB Output is correct
7 Correct 47 ms 70764 KB Output is correct
8 Correct 47 ms 70780 KB Output is correct
9 Correct 47 ms 70764 KB Output is correct
10 Correct 47 ms 70764 KB Output is correct
11 Correct 47 ms 70764 KB Output is correct
12 Correct 47 ms 70764 KB Output is correct
13 Correct 48 ms 70764 KB Output is correct
14 Correct 47 ms 70764 KB Output is correct
15 Correct 47 ms 70912 KB Output is correct
16 Correct 48 ms 70764 KB Output is correct
17 Correct 47 ms 70764 KB Output is correct
18 Correct 47 ms 70764 KB Output is correct
19 Correct 48 ms 70776 KB Output is correct
20 Correct 47 ms 70764 KB Output is correct
21 Correct 48 ms 70764 KB Output is correct
22 Correct 48 ms 70764 KB Output is correct
23 Correct 49 ms 70764 KB Output is correct
24 Correct 48 ms 70892 KB Output is correct
25 Correct 48 ms 70892 KB Output is correct
26 Correct 47 ms 70892 KB Output is correct
27 Correct 48 ms 70892 KB Output is correct
28 Correct 47 ms 70892 KB Output is correct
29 Correct 47 ms 70892 KB Output is correct
30 Correct 48 ms 70892 KB Output is correct
31 Correct 47 ms 70892 KB Output is correct
32 Correct 47 ms 70892 KB Output is correct
33 Correct 49 ms 70892 KB Output is correct
34 Correct 48 ms 70892 KB Output is correct
35 Correct 48 ms 70892 KB Output is correct
36 Correct 49 ms 71020 KB Output is correct
37 Correct 48 ms 71020 KB Output is correct
38 Correct 48 ms 71148 KB Output is correct
39 Correct 49 ms 71148 KB Output is correct
40 Correct 48 ms 71020 KB Output is correct
41 Correct 48 ms 71020 KB Output is correct
42 Correct 48 ms 71148 KB Output is correct
43 Correct 53 ms 70764 KB Output is correct
44 Correct 48 ms 70764 KB Output is correct
45 Correct 48 ms 70764 KB Output is correct
46 Correct 48 ms 70764 KB Output is correct
47 Correct 49 ms 70892 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 70764 KB Output is correct
2 Correct 47 ms 70784 KB Output is correct
3 Correct 47 ms 70764 KB Output is correct
4 Correct 48 ms 70764 KB Output is correct
5 Correct 48 ms 70764 KB Output is correct
6 Correct 47 ms 70764 KB Output is correct
7 Correct 47 ms 70764 KB Output is correct
8 Correct 47 ms 70780 KB Output is correct
9 Correct 47 ms 70764 KB Output is correct
10 Correct 47 ms 70764 KB Output is correct
11 Correct 47 ms 70764 KB Output is correct
12 Correct 47 ms 70764 KB Output is correct
13 Correct 48 ms 70764 KB Output is correct
14 Correct 47 ms 70764 KB Output is correct
15 Correct 47 ms 70912 KB Output is correct
16 Correct 48 ms 70764 KB Output is correct
17 Correct 47 ms 70764 KB Output is correct
18 Correct 47 ms 70764 KB Output is correct
19 Correct 48 ms 70776 KB Output is correct
20 Correct 47 ms 70764 KB Output is correct
21 Correct 48 ms 70764 KB Output is correct
22 Correct 48 ms 70764 KB Output is correct
23 Correct 49 ms 70764 KB Output is correct
24 Correct 48 ms 70892 KB Output is correct
25 Correct 48 ms 70892 KB Output is correct
26 Correct 47 ms 70892 KB Output is correct
27 Correct 48 ms 70892 KB Output is correct
28 Correct 47 ms 70892 KB Output is correct
29 Correct 47 ms 70892 KB Output is correct
30 Correct 48 ms 70892 KB Output is correct
31 Correct 47 ms 70892 KB Output is correct
32 Correct 47 ms 70892 KB Output is correct
33 Correct 49 ms 70892 KB Output is correct
34 Correct 48 ms 70892 KB Output is correct
35 Correct 48 ms 70892 KB Output is correct
36 Correct 49 ms 71020 KB Output is correct
37 Correct 48 ms 71020 KB Output is correct
38 Correct 48 ms 71148 KB Output is correct
39 Correct 49 ms 71148 KB Output is correct
40 Correct 48 ms 71020 KB Output is correct
41 Correct 48 ms 71020 KB Output is correct
42 Correct 48 ms 71148 KB Output is correct
43 Correct 53 ms 70764 KB Output is correct
44 Correct 48 ms 70764 KB Output is correct
45 Correct 48 ms 70764 KB Output is correct
46 Correct 48 ms 70764 KB Output is correct
47 Correct 49 ms 70892 KB Output is correct
48 Correct 46 ms 70764 KB Output is correct
49 Correct 48 ms 70764 KB Output is correct
50 Correct 47 ms 70764 KB Output is correct
51 Correct 47 ms 70764 KB Output is correct
52 Correct 48 ms 70864 KB Output is correct
53 Correct 47 ms 70764 KB Output is correct
54 Correct 47 ms 70764 KB Output is correct
55 Correct 47 ms 70764 KB Output is correct
56 Correct 47 ms 70764 KB Output is correct
57 Correct 47 ms 70764 KB Output is correct
58 Correct 47 ms 70764 KB Output is correct
59 Correct 48 ms 70764 KB Output is correct
60 Correct 47 ms 70764 KB Output is correct
61 Correct 48 ms 70764 KB Output is correct
62 Correct 47 ms 70764 KB Output is correct
63 Correct 47 ms 70764 KB Output is correct
64 Correct 47 ms 70764 KB Output is correct
65 Correct 47 ms 70764 KB Output is correct
66 Correct 47 ms 70764 KB Output is correct
67 Correct 48 ms 70764 KB Output is correct
68 Correct 78 ms 82156 KB Output is correct
69 Correct 112 ms 93420 KB Output is correct
70 Correct 47 ms 70764 KB Output is correct
71 Correct 149 ms 104556 KB Output is correct
72 Correct 176 ms 116076 KB Output is correct
73 Correct 209 ms 127084 KB Output is correct
74 Correct 245 ms 138220 KB Output is correct
75 Correct 278 ms 149356 KB Output is correct
76 Correct 312 ms 160492 KB Output is correct
77 Correct 342 ms 171756 KB Output is correct
78 Correct 372 ms 182892 KB Output is correct
79 Correct 406 ms 194028 KB Output is correct
80 Correct 439 ms 205164 KB Output is correct
81 Correct 48 ms 70892 KB Output is correct
82 Correct 470 ms 216300 KB Output is correct
83 Correct 508 ms 227564 KB Output is correct
84 Correct 534 ms 238700 KB Output is correct
85 Correct 567 ms 249836 KB Output is correct
86 Correct 603 ms 262144 KB Output is correct
87 Runtime error 586 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
88 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 70764 KB Output is correct
2 Correct 47 ms 70784 KB Output is correct
3 Correct 47 ms 70764 KB Output is correct
4 Correct 48 ms 70764 KB Output is correct
5 Correct 48 ms 70764 KB Output is correct
6 Correct 47 ms 70764 KB Output is correct
7 Correct 47 ms 70764 KB Output is correct
8 Correct 47 ms 70780 KB Output is correct
9 Correct 47 ms 70764 KB Output is correct
10 Correct 47 ms 70764 KB Output is correct
11 Correct 47 ms 70764 KB Output is correct
12 Correct 47 ms 70764 KB Output is correct
13 Correct 48 ms 70764 KB Output is correct
14 Correct 47 ms 70764 KB Output is correct
15 Correct 47 ms 70912 KB Output is correct
16 Correct 48 ms 70764 KB Output is correct
17 Correct 47 ms 70764 KB Output is correct
18 Correct 47 ms 70764 KB Output is correct
19 Correct 48 ms 70776 KB Output is correct
20 Correct 47 ms 70764 KB Output is correct
21 Correct 48 ms 70764 KB Output is correct
22 Correct 48 ms 70764 KB Output is correct
23 Correct 49 ms 70764 KB Output is correct
24 Correct 48 ms 70892 KB Output is correct
25 Correct 48 ms 70892 KB Output is correct
26 Correct 47 ms 70892 KB Output is correct
27 Correct 48 ms 70892 KB Output is correct
28 Correct 47 ms 70892 KB Output is correct
29 Correct 47 ms 70892 KB Output is correct
30 Correct 48 ms 70892 KB Output is correct
31 Correct 47 ms 70892 KB Output is correct
32 Correct 47 ms 70892 KB Output is correct
33 Correct 49 ms 70892 KB Output is correct
34 Correct 48 ms 70892 KB Output is correct
35 Correct 48 ms 70892 KB Output is correct
36 Correct 49 ms 71020 KB Output is correct
37 Correct 48 ms 71020 KB Output is correct
38 Correct 48 ms 71148 KB Output is correct
39 Correct 49 ms 71148 KB Output is correct
40 Correct 48 ms 71020 KB Output is correct
41 Correct 48 ms 71020 KB Output is correct
42 Correct 48 ms 71148 KB Output is correct
43 Correct 53 ms 70764 KB Output is correct
44 Correct 48 ms 70764 KB Output is correct
45 Correct 48 ms 70764 KB Output is correct
46 Correct 48 ms 70764 KB Output is correct
47 Correct 49 ms 70892 KB Output is correct
48 Correct 48 ms 70828 KB Output is correct
49 Correct 46 ms 70860 KB Output is correct
50 Correct 47 ms 70764 KB Output is correct
51 Correct 47 ms 70764 KB Output is correct
52 Correct 47 ms 70764 KB Output is correct
53 Correct 48 ms 70892 KB Output is correct
54 Correct 47 ms 70764 KB Output is correct
55 Correct 47 ms 70764 KB Output is correct
56 Correct 47 ms 70764 KB Output is correct
57 Correct 47 ms 70764 KB Output is correct
58 Correct 47 ms 70764 KB Output is correct
59 Correct 47 ms 70784 KB Output is correct
60 Correct 47 ms 70788 KB Output is correct
61 Correct 47 ms 70764 KB Output is correct
62 Correct 48 ms 70764 KB Output is correct
63 Correct 47 ms 70892 KB Output is correct
64 Correct 47 ms 70764 KB Output is correct
65 Correct 47 ms 70764 KB Output is correct
66 Correct 48 ms 70764 KB Output is correct
67 Correct 47 ms 70892 KB Output is correct
68 Correct 48 ms 70764 KB Output is correct
69 Correct 48 ms 70764 KB Output is correct
70 Correct 47 ms 70764 KB Output is correct
71 Correct 47 ms 70764 KB Output is correct
72 Correct 48 ms 70764 KB Output is correct
73 Correct 47 ms 70828 KB Output is correct
74 Correct 49 ms 70764 KB Output is correct
75 Correct 47 ms 70892 KB Output is correct
76 Correct 47 ms 70892 KB Output is correct
77 Correct 48 ms 70892 KB Output is correct
78 Correct 47 ms 70892 KB Output is correct
79 Correct 49 ms 70912 KB Output is correct
80 Correct 47 ms 70892 KB Output is correct
81 Correct 48 ms 70764 KB Output is correct
82 Correct 48 ms 70892 KB Output is correct
83 Correct 49 ms 70892 KB Output is correct
84 Correct 47 ms 70892 KB Output is correct
85 Correct 47 ms 70912 KB Output is correct
86 Correct 48 ms 70892 KB Output is correct
87 Correct 49 ms 70892 KB Output is correct
88 Correct 48 ms 70892 KB Output is correct
89 Correct 48 ms 70892 KB Output is correct
90 Correct 48 ms 70980 KB Output is correct
91 Correct 49 ms 71020 KB Output is correct
92 Correct 47 ms 70764 KB Output is correct
93 Correct 49 ms 71020 KB Output is correct
94 Correct 49 ms 70932 KB Output is correct
95 Correct 49 ms 71020 KB Output is correct
96 Correct 49 ms 70764 KB Output is correct
97 Correct 47 ms 70764 KB Output is correct
98 Correct 48 ms 70764 KB Output is correct
99 Correct 48 ms 70764 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 70764 KB Output is correct
2 Correct 47 ms 70784 KB Output is correct
3 Correct 47 ms 70764 KB Output is correct
4 Correct 48 ms 70764 KB Output is correct
5 Correct 48 ms 70764 KB Output is correct
6 Correct 47 ms 70764 KB Output is correct
7 Correct 47 ms 70764 KB Output is correct
8 Correct 47 ms 70780 KB Output is correct
9 Correct 47 ms 70764 KB Output is correct
10 Correct 47 ms 70764 KB Output is correct
11 Correct 47 ms 70764 KB Output is correct
12 Correct 47 ms 70764 KB Output is correct
13 Correct 48 ms 70764 KB Output is correct
14 Correct 47 ms 70764 KB Output is correct
15 Correct 47 ms 70912 KB Output is correct
16 Correct 48 ms 70764 KB Output is correct
17 Correct 47 ms 70764 KB Output is correct
18 Correct 47 ms 70764 KB Output is correct
19 Correct 48 ms 70776 KB Output is correct
20 Correct 47 ms 70764 KB Output is correct
21 Correct 48 ms 70764 KB Output is correct
22 Correct 48 ms 70764 KB Output is correct
23 Correct 49 ms 70764 KB Output is correct
24 Correct 48 ms 70892 KB Output is correct
25 Correct 48 ms 70892 KB Output is correct
26 Correct 47 ms 70892 KB Output is correct
27 Correct 48 ms 70892 KB Output is correct
28 Correct 47 ms 70892 KB Output is correct
29 Correct 47 ms 70892 KB Output is correct
30 Correct 48 ms 70892 KB Output is correct
31 Correct 47 ms 70892 KB Output is correct
32 Correct 47 ms 70892 KB Output is correct
33 Correct 49 ms 70892 KB Output is correct
34 Correct 48 ms 70892 KB Output is correct
35 Correct 48 ms 70892 KB Output is correct
36 Correct 49 ms 71020 KB Output is correct
37 Correct 48 ms 71020 KB Output is correct
38 Correct 48 ms 71148 KB Output is correct
39 Correct 49 ms 71148 KB Output is correct
40 Correct 48 ms 71020 KB Output is correct
41 Correct 48 ms 71020 KB Output is correct
42 Correct 48 ms 71148 KB Output is correct
43 Correct 53 ms 70764 KB Output is correct
44 Correct 48 ms 70764 KB Output is correct
45 Correct 48 ms 70764 KB Output is correct
46 Correct 48 ms 70764 KB Output is correct
47 Correct 49 ms 70892 KB Output is correct
48 Correct 46 ms 70764 KB Output is correct
49 Correct 48 ms 70764 KB Output is correct
50 Correct 47 ms 70764 KB Output is correct
51 Correct 47 ms 70764 KB Output is correct
52 Correct 48 ms 70864 KB Output is correct
53 Correct 47 ms 70764 KB Output is correct
54 Correct 47 ms 70764 KB Output is correct
55 Correct 47 ms 70764 KB Output is correct
56 Correct 47 ms 70764 KB Output is correct
57 Correct 47 ms 70764 KB Output is correct
58 Correct 47 ms 70764 KB Output is correct
59 Correct 48 ms 70764 KB Output is correct
60 Correct 47 ms 70764 KB Output is correct
61 Correct 48 ms 70764 KB Output is correct
62 Correct 47 ms 70764 KB Output is correct
63 Correct 47 ms 70764 KB Output is correct
64 Correct 47 ms 70764 KB Output is correct
65 Correct 47 ms 70764 KB Output is correct
66 Correct 47 ms 70764 KB Output is correct
67 Correct 48 ms 70764 KB Output is correct
68 Correct 78 ms 82156 KB Output is correct
69 Correct 112 ms 93420 KB Output is correct
70 Correct 47 ms 70764 KB Output is correct
71 Correct 149 ms 104556 KB Output is correct
72 Correct 176 ms 116076 KB Output is correct
73 Correct 209 ms 127084 KB Output is correct
74 Correct 245 ms 138220 KB Output is correct
75 Correct 278 ms 149356 KB Output is correct
76 Correct 312 ms 160492 KB Output is correct
77 Correct 342 ms 171756 KB Output is correct
78 Correct 372 ms 182892 KB Output is correct
79 Correct 406 ms 194028 KB Output is correct
80 Correct 439 ms 205164 KB Output is correct
81 Correct 48 ms 70892 KB Output is correct
82 Correct 470 ms 216300 KB Output is correct
83 Correct 508 ms 227564 KB Output is correct
84 Correct 534 ms 238700 KB Output is correct
85 Correct 567 ms 249836 KB Output is correct
86 Correct 603 ms 262144 KB Output is correct
87 Runtime error 586 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
88 Halted 0 ms 0 KB -