oj.uz

Submission #1061322

# Submission time Handle Problem Language Result Execution time Memory
1061322 2024-08-16T08:02:53 Z noyancanturk Longest Trip (IOI23_longesttrip) C++17
100 / 100
 12 ms 600 KB 
#include "longesttrip.h"

#include <bits/stdc++.h>
using namespace std;

#define pb push_back

int n,d;

vector<int>getslice(int l,int r,deque<int>&v){
  vector<int>res;
  for(int i=l;i<=r;i++){
    res.pb(v[i]);
  }
  return res;
}

vector<int>longest_trip(int N,int D){
  n=N,d=D;
  deque<int>trip1,trip2;
  trip1.pb(0);
  bool side=0;
  for(int i=1;i<n;i++){
    bool ok=are_connected({trip1.back()},{i});
    if(ok){
      trip1.pb(i);
      side=0;
    }else if(!trip2.size()||side){
      trip2.pb(i);
      side=1;
    }else{
      ok=are_connected({trip2.back()},{i});
      if(ok){
        trip2.pb(i);
        side=1;
      }else{
        while(trip2.size()){
          trip1.pb(trip2.back());
          trip2.pop_back();
        }
        trip2.pb(i);
      }
    }
  }
  if(!trip2.size())return vector<int>(trip1.begin(),trip1.end());
  if(!are_connected(vector<int>(trip1.begin(),trip1.end()),vector<int>(trip2.begin(),trip2.end()))){
    if(trip1.size()<trip2.size())swap(trip1,trip2);
    return vector<int>(trip1.begin(),trip1.end());
  }
  if(are_connected({trip1.front()},{trip2.front()})){
    vector<int>ans;
    for(int i=trip1.size()-1;0<=i;i--){
      ans.pb(trip1[i]);
    }
    for(int i:trip2){
      ans.pb(i);
    }
    return ans;
  }
  if(are_connected({trip1.back()},{trip2.front()})){
    vector<int>ans;
    for(int i:trip1){
      ans.pb(i);
    }
    for(int i:trip2){
      ans.pb(i);
    }
    return ans;
  }
  if(are_connected({trip1.back()},{trip2.back()})){
    vector<int>ans;
    for(int i:trip1){
      ans.pb(i);
    }
    for(int i=trip2.size()-1;0<=i;i--){
      ans.pb(trip2[i]);
    }
    return ans;
  }
  int ans1=0;
  {
    int l=1,r=trip1.size()-1;
    while(l<=r){
      int mid=(l+r)>>1;
      bool ok=are_connected(getslice(l,mid,trip1),vector<int>(trip2.begin(),trip2.end()));
      if(ok){
        ans1=mid;
        r=mid-1;
      }else{
        l=mid+1;
      }
    }
  }
  int ans2=0;
  {
    int l=1,r=trip2.size()-1;
    while(l<=r){
      int mid=(l+r)>>1;
      bool ok=are_connected(getslice(l,mid,trip2),{trip1[ans1]});
      if(ok){
        ans2=mid;
        r=mid-1;
      }else{
        l=mid+1;
      }
    }
  }
  vector<int>ans;
  for(int i=ans1+1;i<trip1.size();i++){
    ans.pb(trip1[i]);
  }
  for(int i=0;i<=ans1;i++){
    ans.pb(trip1[i]);
  }
  for(int i=ans2;i<trip2.size();i++){
    ans.pb(trip2[i]);
  }
  for(int i=0;i<ans2;i++){
    ans.pb(trip2[i]);
  }
  return ans;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:109:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |   for(int i=ans1+1;i<trip1.size();i++){
      |                    ~^~~~~~~~~~~~~
longesttrip.cpp:115:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |   for(int i=ans2;i<trip2.size();i++){
      |                  ~^~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

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

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 600 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 5 ms 600 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 8 ms 344 KB Output is correct
3 Correct 6 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 436 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 4 ms 340 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 8 ms 344 KB Output is correct
15 Correct 7 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 7 ms 344 KB Output is correct
19 Correct 7 ms 344 KB Output is correct
20 Correct 9 ms 344 KB Output is correct
21 Correct 6 ms 440 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 7 ms 440 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 7 ms 344 KB Output is correct
27 Correct 7 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 7 ms 344 KB Output is correct
30 Correct 7 ms 344 KB Output is correct
31 Correct 9 ms 344 KB Output is correct
32 Correct 4 ms 344 KB Output is correct
33 Correct 5 ms 344 KB Output is correct
34 Correct 6 ms 344 KB Output is correct
35 Correct 5 ms 344 KB Output is correct
36 Correct 5 ms 344 KB Output is correct
37 Correct 6 ms 600 KB Output is correct
38 Correct 8 ms 344 KB Output is correct
39 Correct 6 ms 344 KB Output is correct
40 Correct 6 ms 344 KB Output is correct
41 Correct 9 ms 440 KB Output is correct
42 Correct 6 ms 344 KB Output is correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 4 ms 344 KB Output is correct
45 Correct 10 ms 344 KB Output is correct
46 Correct 10 ms 344 KB Output is correct
47 Correct 8 ms 344 KB Output is correct
48 Correct 8 ms 344 KB Output is correct
49 Correct 8 ms 344 KB Output is correct
50 Correct 5 ms 600 KB Output is correct
51 Correct 7 ms 344 KB Output is correct
52 Correct 6 ms 344 KB Output is correct
53 Correct 6 ms 344 KB Output is correct
54 Correct 4 ms 344 KB Output is correct
55 Correct 6 ms 344 KB Output is correct
56 Correct 5 ms 344 KB Output is correct
57 Correct 6 ms 344 KB Output is correct
58 Correct 6 ms 344 KB Output is correct
59 Correct 8 ms 432 KB Output is correct
60 Correct 7 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 7 ms 344 KB Output is correct
63 Correct 7 ms 344 KB Output is correct
64 Correct 7 ms 344 KB Output is correct

Subtask #4
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 436 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 5 ms 436 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 6 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 7 ms 596 KB Output is correct
14 Correct 7 ms 596 KB Output is correct
15 Correct 6 ms 344 KB Output is correct
16 Correct 10 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 9 ms 344 KB Output is correct
19 Correct 8 ms 344 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 6 ms 344 KB Output is correct
23 Correct 8 ms 340 KB Output is correct
24 Correct 6 ms 344 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 5 ms 344 KB Output is correct
27 Correct 7 ms 344 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 5 ms 344 KB Output is correct
30 Correct 7 ms 344 KB Output is correct
31 Correct 6 ms 344 KB Output is correct
32 Correct 12 ms 344 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 8 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 8 ms 344 KB Output is correct
37 Correct 7 ms 344 KB Output is correct
38 Correct 7 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 8 ms 344 KB Output is correct
41 Correct 5 ms 344 KB Output is correct
42 Correct 4 ms 344 KB Output is correct
43 Correct 7 ms 412 KB Output is correct
44 Correct 6 ms 344 KB Output is correct
45 Correct 6 ms 344 KB Output is correct
46 Correct 5 ms 344 KB Output is correct
47 Correct 5 ms 344 KB Output is correct
48 Correct 5 ms 344 KB Output is correct
49 Correct 7 ms 344 KB Output is correct
50 Correct 9 ms 596 KB Output is correct
51 Correct 8 ms 344 KB Output is correct
52 Correct 7 ms 344 KB Output is correct
53 Correct 6 ms 344 KB Output is correct
54 Correct 7 ms 600 KB Output is correct
55 Correct 6 ms 344 KB Output is correct
56 Correct 6 ms 344 KB Output is correct
57 Correct 8 ms 344 KB Output is correct
58 Correct 6 ms 344 KB Output is correct
59 Correct 8 ms 344 KB Output is correct
60 Correct 8 ms 344 KB Output is correct
61 Correct 6 ms 344 KB Output is correct
62 Correct 4 ms 340 KB Output is correct
63 Correct 5 ms 600 KB Output is correct
64 Correct 5 ms 344 KB Output is correct
65 Correct 10 ms 344 KB Output is correct
66 Correct 6 ms 344 KB Output is correct
67 Correct 5 ms 436 KB Output is correct
68 Correct 9 ms 344 KB Output is correct
69 Correct 6 ms 344 KB Output is correct
70 Correct 7 ms 340 KB Output is correct
71 Correct 4 ms 344 KB Output is correct
72 Correct 4 ms 344 KB Output is correct
73 Correct 7 ms 344 KB Output is correct
74 Correct 7 ms 344 KB Output is correct
75 Correct 5 ms 344 KB Output is correct
76 Correct 5 ms 344 KB Output is correct
77 Correct 4 ms 344 KB Output is correct
78 Correct 6 ms 344 KB Output is correct
79 Correct 7 ms 344 KB Output is correct
80 Correct 11 ms 344 KB Output is correct
81 Correct 6 ms 344 KB Output is correct
82 Correct 7 ms 340 KB Output is correct