oj.uz

Submission #961284

# Submission time Handle Problem Language Result Execution time Memory
961284 2024-04-11T19:36:37 Z Prieved1 Longest Trip (IOI23_longesttrip) C++17
5 / 100
 39 ms 5208 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
int cnt=0;
int n;
map<int, map<int,int>> mp;
bool query1(int a, int b) {
  if(mp[a][b]!=0)return mp[a][b]-1;
  int c=are_connected({a}, {b});
  mp[a][b]=c+1;
  mp[b][a]=c+1;
  cnt++;
  return c;
}
bool query2(int a, int b) {
 for(int j  = 0;j<n;j++) {
  if(a==j or j==b)continue;
  if(mp[a][j]==1 and mp[j][b]==1) {
    mp[a][b]=2;
    mp[b][a]=2;
    return 1;
  }
 }
 return query1(a,b);
}
vector<int> longest_trip(int N, int D)
{
  n=N;
  cnt=0;
  mp.clear();
  srand(time(NULL));
  vector<int> t[2];
  t[0].push_back(0);
  for(int i = 1;i<N;i++) {
    if(t[1].size() > t[0].size())swap(t[0], t[1]);
    if(t[1].size()) {
      if(rand()%2)swap(t[0], t[1]);
    }
    int c=query2(t[0].back(), i);
    if(!c) {
      t[1].push_back(i);
    }
    else {
      t[0].push_back(i);
      if(t[1].size()) {
        c=query2(t[1].back(), i);
        if(c) {
          while(t[1].size()) {
            t[0].push_back(t[1].back());
            t[1].pop_back();
          }
        }
      }
    }
  }
  assert(cnt<=384);
  if(t[0].size()<t[1].size())swap(t[0], t[1]);
  return t[0];
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 8 ms 3416 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 8 ms 344 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 12 ms 1112 KB Output is correct
5 Correct 25 ms 3672 KB Output is correct

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 9 ms 344 KB Output is correct
4 Correct 12 ms 1112 KB Output is correct
5 Correct 25 ms 4072 KB Output is correct
6 Incorrect 0 ms 344 KB Incorrect
7 Halted 0 ms 0 KB -

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 7 ms 344 KB Output is correct
3 Correct 10 ms 344 KB Output is correct
4 Correct 19 ms 1376 KB Output is correct
5 Correct 24 ms 3544 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 9 ms 344 KB Output is correct
9 Correct 12 ms 1064 KB Output is correct
10 Correct 23 ms 3416 KB Output is correct
11 Correct 24 ms 3672 KB Output is correct
12 Correct 23 ms 3728 KB Output is correct
13 Correct 23 ms 3692 KB Output is correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 10 ms 344 KB Output is correct
16 Correct 9 ms 344 KB Output is correct
17 Correct 9 ms 600 KB Output is correct
18 Correct 10 ms 600 KB Output is correct
19 Correct 13 ms 1112 KB Output is correct
20 Correct 15 ms 1252 KB Output is correct
21 Correct 25 ms 3220 KB Output is correct
22 Correct 26 ms 3492 KB Output is correct
23 Correct 31 ms 3416 KB Output is correct
24 Correct 27 ms 3468 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 6 ms 600 KB Output is correct
28 Correct 6 ms 356 KB Output is correct
29 Correct 7 ms 344 KB Output is correct
30 Correct 12 ms 436 KB Output is correct
31 Correct 13 ms 696 KB Output is correct
32 Correct 14 ms 952 KB Output is correct
33 Correct 21 ms 992 KB Output is correct
34 Correct 16 ms 1120 KB Output is correct
35 Correct 19 ms 1368 KB Output is correct
36 Correct 39 ms 3520 KB Output is correct
37 Correct 32 ms 2904 KB Output is correct
38 Runtime error 17 ms 5208 KB Execution killed with signal 6
39 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 5 ms 596 KB Output is correct
3 Correct 9 ms 720 KB Output is correct
4 Correct 14 ms 1368 KB Output is correct
5 Correct 29 ms 3416 KB Output is correct
6 Incorrect 1 ms 344 KB Incorrect
7 Halted 0 ms 0 KB -