oj.uz

Submission #342002

# Submission time Handle Problem Language Result Execution time Memory
342002 2021-01-01T00:31:04 Z freshmintt Traffic (IOI10_traffic) C++14
50 / 100
 593 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 int ll;
typedef pair<ll,ll> pi;
vector<int> adj[1000001]; // change
ll people[1000001]; // change
multiset<ll> sums[1000001]; // change
ll subtree[1000001]; // change

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

      ll 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];
  }
  // for (auto i : people) {
  //   cout << i << " ";
  // }
  // cout << endl;
  // for (auto item : adj) {
  //   for (auto i : item) {
  //     cout << i << " ";
  //   }
  //   cout << endl;
  // }
  dfsSubtree(0, -1, 0);
  
  // for (auto item : subtree) {
  //   cout << item << " " << endl;
  // }
  // cout << "now for all sums" << endl;
  dfsParents(0, -1, 0);
  // for (auto item : sums) {
  //   for (auto i : item)  {
  //     cout << i << " ";
  //   }
  //   cout << endl;
  // }
  ll minRoad = 1E12;
  ll 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:87:16: warning: overflow in conversion from 'double' to 'll' {aka 'int'} changes value from '1.0e+12' to '2147483647' [-Woverflow]
   87 |   ll minRoad = 1E12;
      |                ^~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 70892 KB Output is correct
2 Correct 43 ms 70892 KB Output is correct
3 Correct 42 ms 70764 KB Output is correct
4 Correct 46 ms 70892 KB Output is correct
5 Correct 42 ms 70764 KB Output is correct
6 Correct 42 ms 70764 KB Output is correct
7 Correct 42 ms 70764 KB Output is correct
8 Correct 44 ms 70920 KB Output is correct
9 Correct 44 ms 70764 KB Output is correct
10 Correct 43 ms 70764 KB Output is correct
11 Correct 43 ms 70764 KB Output is correct
12 Correct 42 ms 70764 KB Output is correct
13 Correct 42 ms 70764 KB Output is correct
14 Correct 42 ms 70764 KB Output is correct
15 Correct 43 ms 70764 KB Output is correct
16 Correct 42 ms 70764 KB Output is correct
17 Correct 44 ms 70764 KB Output is correct
18 Correct 42 ms 70764 KB Output is correct
19 Correct 42 ms 70764 KB Output is correct
20 Correct 43 ms 70764 KB Output is correct
21 Correct 44 ms 70892 KB Output is correct
22 Correct 42 ms 70764 KB Output is correct
23 Correct 43 ms 70764 KB Output is correct
24 Correct 42 ms 70892 KB Output is correct
25 Correct 44 ms 70892 KB Output is correct
26 Correct 44 ms 70892 KB Output is correct
27 Correct 43 ms 70892 KB Output is correct
28 Correct 42 ms 70892 KB Output is correct
29 Correct 43 ms 70892 KB Output is correct
30 Correct 42 ms 70892 KB Output is correct
31 Correct 44 ms 70892 KB Output is correct
32 Correct 44 ms 70860 KB Output is correct
33 Correct 43 ms 71020 KB Output is correct
34 Correct 42 ms 70764 KB Output is correct
35 Correct 44 ms 70892 KB Output is correct
36 Correct 43 ms 70892 KB Output is correct
37 Correct 45 ms 71020 KB Output is correct
38 Correct 44 ms 71020 KB Output is correct
39 Correct 43 ms 71020 KB Output is correct
40 Correct 44 ms 71168 KB Output is correct
41 Correct 44 ms 71148 KB Output is correct
42 Correct 43 ms 71020 KB Output is correct
43 Correct 43 ms 70892 KB Output is correct
44 Correct 42 ms 70764 KB Output is correct
45 Correct 42 ms 70764 KB Output is correct
46 Correct 42 ms 70764 KB Output is correct
47 Correct 43 ms 70764 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 70892 KB Output is correct
2 Correct 43 ms 70892 KB Output is correct
3 Correct 42 ms 70764 KB Output is correct
4 Correct 46 ms 70892 KB Output is correct
5 Correct 42 ms 70764 KB Output is correct
6 Correct 42 ms 70764 KB Output is correct
7 Correct 42 ms 70764 KB Output is correct
8 Correct 44 ms 70920 KB Output is correct
9 Correct 44 ms 70764 KB Output is correct
10 Correct 43 ms 70764 KB Output is correct
11 Correct 43 ms 70764 KB Output is correct
12 Correct 42 ms 70764 KB Output is correct
13 Correct 42 ms 70764 KB Output is correct
14 Correct 42 ms 70764 KB Output is correct
15 Correct 43 ms 70764 KB Output is correct
16 Correct 42 ms 70764 KB Output is correct
17 Correct 44 ms 70764 KB Output is correct
18 Correct 42 ms 70764 KB Output is correct
19 Correct 42 ms 70764 KB Output is correct
20 Correct 43 ms 70764 KB Output is correct
21 Correct 44 ms 70892 KB Output is correct
22 Correct 42 ms 70764 KB Output is correct
23 Correct 43 ms 70764 KB Output is correct
24 Correct 42 ms 70892 KB Output is correct
25 Correct 44 ms 70892 KB Output is correct
26 Correct 44 ms 70892 KB Output is correct
27 Correct 43 ms 70892 KB Output is correct
28 Correct 42 ms 70892 KB Output is correct
29 Correct 43 ms 70892 KB Output is correct
30 Correct 42 ms 70892 KB Output is correct
31 Correct 44 ms 70892 KB Output is correct
32 Correct 44 ms 70860 KB Output is correct
33 Correct 43 ms 71020 KB Output is correct
34 Correct 42 ms 70764 KB Output is correct
35 Correct 44 ms 70892 KB Output is correct
36 Correct 43 ms 70892 KB Output is correct
37 Correct 45 ms 71020 KB Output is correct
38 Correct 44 ms 71020 KB Output is correct
39 Correct 43 ms 71020 KB Output is correct
40 Correct 44 ms 71168 KB Output is correct
41 Correct 44 ms 71148 KB Output is correct
42 Correct 43 ms 71020 KB Output is correct
43 Correct 43 ms 70892 KB Output is correct
44 Correct 42 ms 70764 KB Output is correct
45 Correct 42 ms 70764 KB Output is correct
46 Correct 42 ms 70764 KB Output is correct
47 Correct 43 ms 70764 KB Output is correct
48 Correct 42 ms 70764 KB Output is correct
49 Correct 42 ms 70764 KB Output is correct
50 Correct 45 ms 70764 KB Output is correct
51 Correct 42 ms 70764 KB Output is correct
52 Correct 42 ms 70764 KB Output is correct
53 Correct 42 ms 70764 KB Output is correct
54 Correct 42 ms 70764 KB Output is correct
55 Correct 42 ms 70764 KB Output is correct
56 Correct 44 ms 70764 KB Output is correct
57 Correct 42 ms 70764 KB Output is correct
58 Correct 42 ms 70764 KB Output is correct
59 Correct 42 ms 70764 KB Output is correct
60 Correct 42 ms 70764 KB Output is correct
61 Correct 42 ms 70764 KB Output is correct
62 Correct 42 ms 70764 KB Output is correct
63 Correct 44 ms 70764 KB Output is correct
64 Correct 43 ms 70764 KB Output is correct
65 Correct 42 ms 70764 KB Output is correct
66 Correct 42 ms 70892 KB Output is correct
67 Correct 43 ms 70764 KB Output is correct
68 Correct 73 ms 81900 KB Output is correct
69 Correct 105 ms 93164 KB Output is correct
70 Correct 43 ms 70764 KB Output is correct
71 Correct 138 ms 104300 KB Output is correct
72 Correct 168 ms 115436 KB Output is correct
73 Correct 203 ms 126572 KB Output is correct
74 Correct 239 ms 137964 KB Output is correct
75 Correct 267 ms 148844 KB Output is correct
76 Correct 295 ms 159980 KB Output is correct
77 Correct 328 ms 171244 KB Output is correct
78 Correct 364 ms 182380 KB Output is correct
79 Correct 403 ms 193516 KB Output is correct
80 Correct 419 ms 204652 KB Output is correct
81 Correct 44 ms 70764 KB Output is correct
82 Correct 452 ms 215788 KB Output is correct
83 Correct 500 ms 226996 KB Output is correct
84 Correct 529 ms 238060 KB Output is correct
85 Correct 553 ms 249196 KB Output is correct
86 Correct 593 ms 262144 KB Output is correct
87 Runtime error 568 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 42 ms 70892 KB Output is correct
2 Correct 43 ms 70892 KB Output is correct
3 Correct 42 ms 70764 KB Output is correct
4 Correct 46 ms 70892 KB Output is correct
5 Correct 42 ms 70764 KB Output is correct
6 Correct 42 ms 70764 KB Output is correct
7 Correct 42 ms 70764 KB Output is correct
8 Correct 44 ms 70920 KB Output is correct
9 Correct 44 ms 70764 KB Output is correct
10 Correct 43 ms 70764 KB Output is correct
11 Correct 43 ms 70764 KB Output is correct
12 Correct 42 ms 70764 KB Output is correct
13 Correct 42 ms 70764 KB Output is correct
14 Correct 42 ms 70764 KB Output is correct
15 Correct 43 ms 70764 KB Output is correct
16 Correct 42 ms 70764 KB Output is correct
17 Correct 44 ms 70764 KB Output is correct
18 Correct 42 ms 70764 KB Output is correct
19 Correct 42 ms 70764 KB Output is correct
20 Correct 43 ms 70764 KB Output is correct
21 Correct 44 ms 70892 KB Output is correct
22 Correct 42 ms 70764 KB Output is correct
23 Correct 43 ms 70764 KB Output is correct
24 Correct 42 ms 70892 KB Output is correct
25 Correct 44 ms 70892 KB Output is correct
26 Correct 44 ms 70892 KB Output is correct
27 Correct 43 ms 70892 KB Output is correct
28 Correct 42 ms 70892 KB Output is correct
29 Correct 43 ms 70892 KB Output is correct
30 Correct 42 ms 70892 KB Output is correct
31 Correct 44 ms 70892 KB Output is correct
32 Correct 44 ms 70860 KB Output is correct
33 Correct 43 ms 71020 KB Output is correct
34 Correct 42 ms 70764 KB Output is correct
35 Correct 44 ms 70892 KB Output is correct
36 Correct 43 ms 70892 KB Output is correct
37 Correct 45 ms 71020 KB Output is correct
38 Correct 44 ms 71020 KB Output is correct
39 Correct 43 ms 71020 KB Output is correct
40 Correct 44 ms 71168 KB Output is correct
41 Correct 44 ms 71148 KB Output is correct
42 Correct 43 ms 71020 KB Output is correct
43 Correct 43 ms 70892 KB Output is correct
44 Correct 42 ms 70764 KB Output is correct
45 Correct 42 ms 70764 KB Output is correct
46 Correct 42 ms 70764 KB Output is correct
47 Correct 43 ms 70764 KB Output is correct
48 Correct 42 ms 70764 KB Output is correct
49 Correct 43 ms 70764 KB Output is correct
50 Correct 44 ms 70764 KB Output is correct
51 Correct 42 ms 70764 KB Output is correct
52 Correct 42 ms 70764 KB Output is correct
53 Correct 45 ms 70764 KB Output is correct
54 Correct 42 ms 70764 KB Output is correct
55 Correct 43 ms 70764 KB Output is correct
56 Correct 42 ms 70764 KB Output is correct
57 Correct 43 ms 70764 KB Output is correct
58 Correct 42 ms 70764 KB Output is correct
59 Correct 43 ms 70764 KB Output is correct
60 Correct 44 ms 70764 KB Output is correct
61 Correct 42 ms 70764 KB Output is correct
62 Correct 49 ms 70764 KB Output is correct
63 Correct 42 ms 70764 KB Output is correct
64 Correct 43 ms 70764 KB Output is correct
65 Correct 42 ms 70764 KB Output is correct
66 Correct 42 ms 70764 KB Output is correct
67 Correct 43 ms 70764 KB Output is correct
68 Correct 42 ms 70764 KB Output is correct
69 Correct 42 ms 70764 KB Output is correct
70 Correct 43 ms 70764 KB Output is correct
71 Correct 42 ms 70764 KB Output is correct
72 Correct 43 ms 70764 KB Output is correct
73 Correct 42 ms 70764 KB Output is correct
74 Correct 43 ms 70764 KB Output is correct
75 Correct 43 ms 70892 KB Output is correct
76 Correct 42 ms 70892 KB Output is correct
77 Correct 43 ms 70892 KB Output is correct
78 Correct 42 ms 70892 KB Output is correct
79 Correct 42 ms 70892 KB Output is correct
80 Correct 43 ms 70892 KB Output is correct
81 Correct 45 ms 70764 KB Output is correct
82 Correct 42 ms 70892 KB Output is correct
83 Correct 43 ms 70892 KB Output is correct
84 Correct 43 ms 70892 KB Output is correct
85 Correct 43 ms 70892 KB Output is correct
86 Correct 43 ms 70968 KB Output is correct
87 Correct 44 ms 70892 KB Output is correct
88 Correct 43 ms 70912 KB Output is correct
89 Correct 43 ms 70892 KB Output is correct
90 Correct 43 ms 70892 KB Output is correct
91 Correct 43 ms 70892 KB Output is correct
92 Correct 42 ms 70764 KB Output is correct
93 Correct 43 ms 70892 KB Output is correct
94 Correct 43 ms 70892 KB Output is correct
95 Correct 43 ms 71020 KB Output is correct
96 Correct 42 ms 70892 KB Output is correct
97 Correct 44 ms 70764 KB Output is correct
98 Correct 42 ms 70764 KB Output is correct
99 Correct 42 ms 70764 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 70892 KB Output is correct
2 Correct 43 ms 70892 KB Output is correct
3 Correct 42 ms 70764 KB Output is correct
4 Correct 46 ms 70892 KB Output is correct
5 Correct 42 ms 70764 KB Output is correct
6 Correct 42 ms 70764 KB Output is correct
7 Correct 42 ms 70764 KB Output is correct
8 Correct 44 ms 70920 KB Output is correct
9 Correct 44 ms 70764 KB Output is correct
10 Correct 43 ms 70764 KB Output is correct
11 Correct 43 ms 70764 KB Output is correct
12 Correct 42 ms 70764 KB Output is correct
13 Correct 42 ms 70764 KB Output is correct
14 Correct 42 ms 70764 KB Output is correct
15 Correct 43 ms 70764 KB Output is correct
16 Correct 42 ms 70764 KB Output is correct
17 Correct 44 ms 70764 KB Output is correct
18 Correct 42 ms 70764 KB Output is correct
19 Correct 42 ms 70764 KB Output is correct
20 Correct 43 ms 70764 KB Output is correct
21 Correct 44 ms 70892 KB Output is correct
22 Correct 42 ms 70764 KB Output is correct
23 Correct 43 ms 70764 KB Output is correct
24 Correct 42 ms 70892 KB Output is correct
25 Correct 44 ms 70892 KB Output is correct
26 Correct 44 ms 70892 KB Output is correct
27 Correct 43 ms 70892 KB Output is correct
28 Correct 42 ms 70892 KB Output is correct
29 Correct 43 ms 70892 KB Output is correct
30 Correct 42 ms 70892 KB Output is correct
31 Correct 44 ms 70892 KB Output is correct
32 Correct 44 ms 70860 KB Output is correct
33 Correct 43 ms 71020 KB Output is correct
34 Correct 42 ms 70764 KB Output is correct
35 Correct 44 ms 70892 KB Output is correct
36 Correct 43 ms 70892 KB Output is correct
37 Correct 45 ms 71020 KB Output is correct
38 Correct 44 ms 71020 KB Output is correct
39 Correct 43 ms 71020 KB Output is correct
40 Correct 44 ms 71168 KB Output is correct
41 Correct 44 ms 71148 KB Output is correct
42 Correct 43 ms 71020 KB Output is correct
43 Correct 43 ms 70892 KB Output is correct
44 Correct 42 ms 70764 KB Output is correct
45 Correct 42 ms 70764 KB Output is correct
46 Correct 42 ms 70764 KB Output is correct
47 Correct 43 ms 70764 KB Output is correct
48 Correct 42 ms 70764 KB Output is correct
49 Correct 42 ms 70764 KB Output is correct
50 Correct 45 ms 70764 KB Output is correct
51 Correct 42 ms 70764 KB Output is correct
52 Correct 42 ms 70764 KB Output is correct
53 Correct 42 ms 70764 KB Output is correct
54 Correct 42 ms 70764 KB Output is correct
55 Correct 42 ms 70764 KB Output is correct
56 Correct 44 ms 70764 KB Output is correct
57 Correct 42 ms 70764 KB Output is correct
58 Correct 42 ms 70764 KB Output is correct
59 Correct 42 ms 70764 KB Output is correct
60 Correct 42 ms 70764 KB Output is correct
61 Correct 42 ms 70764 KB Output is correct
62 Correct 42 ms 70764 KB Output is correct
63 Correct 44 ms 70764 KB Output is correct
64 Correct 43 ms 70764 KB Output is correct
65 Correct 42 ms 70764 KB Output is correct
66 Correct 42 ms 70892 KB Output is correct
67 Correct 43 ms 70764 KB Output is correct
68 Correct 73 ms 81900 KB Output is correct
69 Correct 105 ms 93164 KB Output is correct
70 Correct 43 ms 70764 KB Output is correct
71 Correct 138 ms 104300 KB Output is correct
72 Correct 168 ms 115436 KB Output is correct
73 Correct 203 ms 126572 KB Output is correct
74 Correct 239 ms 137964 KB Output is correct
75 Correct 267 ms 148844 KB Output is correct
76 Correct 295 ms 159980 KB Output is correct
77 Correct 328 ms 171244 KB Output is correct
78 Correct 364 ms 182380 KB Output is correct
79 Correct 403 ms 193516 KB Output is correct
80 Correct 419 ms 204652 KB Output is correct
81 Correct 44 ms 70764 KB Output is correct
82 Correct 452 ms 215788 KB Output is correct
83 Correct 500 ms 226996 KB Output is correct
84 Correct 529 ms 238060 KB Output is correct
85 Correct 553 ms 249196 KB Output is correct
86 Correct 593 ms 262144 KB Output is correct
87 Runtime error 568 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
88 Halted 0 ms 0 KB -