#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
std::vector<int> longest_trip(int N, int D)
{
vector<int> S1;
vector<int> S2;
S1.push_back(0);
S2.push_back(1);
for(int i=2;i<N;i++){
if(are_connected({S1.back()},{i})){
S1.push_back(i);
}
else if(are_connected({S2.back()},{i})){
S2.push_back(i);
}
else{
while(S2.size()){
S1.push_back(S2.back());
S2.pop_back();
}
S2.push_back(i);
}
}
if(S1.size()<S2.size())swap(S1,S2);
if(!are_connected(S1,S2))
return S1;
if(!are_connected({S1[0]},{S1.back()})){
if(!are_connected({S1.back()},{S2.back()}))reverse(S1.begin(),S1.end());
while(S2.size()){
S1.push_back(S2.back());
S2.pop_back();
}
return S1;
}
if(S2.size()!=1&&!are_connected({S2[0]},{S2.back()})){
if(!are_connected({S2.back()},{S1.back()}))reverse(S2.begin(),S2.end());
while(S1.size()){
S2.push_back(S1.back());
S1.pop_back();
}
return S2;
}
vector<int> cand1=S1;
vector<int> cand2=S2;
while(cand1.size()!=1){
vector<int> tmp1=cand1;
vector<int> tmp2;
int target=tmp1.size()/2;
while(tmp1.size()!=target){
tmp2.push_back(tmp1.back());
tmp1.pop_back();
}
if(are_connected(tmp1,cand2))cand1=tmp1;
else cand1=tmp2;
}
swap(cand1,cand2);
while(cand1.size()!=1){
vector<int> tmp1=cand1;
vector<int> tmp2;
int target=tmp1.size()/2;
while(tmp1.size()!=target){
tmp2.push_back(tmp1.back());
tmp1.pop_back();
}
if(are_connected(tmp1,cand2))cand1=tmp1;
else cand1=tmp2;
}
swap(cand1,cand2);
int pos1=0;
for(int i=0;i<S1.size();i++){
if(S1[i]==cand1[0])pos1=i;
}
int pos2=0;
for(int i=0;i<S2.size();i++){
if(S2[i]==cand2[0])pos2=i;
}
vector<int> S3;
S3.push_back(S1[pos1]);
for(int i=(pos1+1)%S1.size();i!=pos1;i=(i+1)%S1.size())S3.push_back(S1[i]);
reverse(S3.begin(),S3.end());
S3.push_back(S2[pos2]);
for(int i=(pos2+1)%S2.size();i!=pos2;i=(i+1)%S2.size())S3.push_back(S2[i]);
return S3;
}
Compilation message
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:58:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
58 | while(tmp1.size()!=target){
| ~~~~~~~~~~~^~~~~~~~
longesttrip.cpp:71:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
71 | while(tmp1.size()!=target){
| ~~~~~~~~~~~^~~~~~~~
longesttrip.cpp:81:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
81 | for(int i=0;i<S1.size();i++){
| ~^~~~~~~~~~
longesttrip.cpp:86:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
86 | for(int i=0;i<S2.size();i++){
| ~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
3 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
208 KB |
Output is correct |
| 2 |
Correct |
9 ms |
208 KB |
Output is correct |
| 3 |
Correct |
7 ms |
208 KB |
Output is correct |
| 4 |
Correct |
8 ms |
208 KB |
Output is correct |
| 5 |
Correct |
5 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
208 KB |
Output is correct |
| 2 |
Correct |
13 ms |
208 KB |
Output is correct |
| 3 |
Correct |
6 ms |
208 KB |
Output is correct |
| 4 |
Correct |
8 ms |
208 KB |
Output is correct |
| 5 |
Correct |
8 ms |
208 KB |
Output is correct |
| 6 |
Correct |
9 ms |
208 KB |
Output is correct |
| 7 |
Correct |
12 ms |
208 KB |
Output is correct |
| 8 |
Correct |
11 ms |
208 KB |
Output is correct |
| 9 |
Correct |
7 ms |
208 KB |
Output is correct |
| 10 |
Correct |
7 ms |
304 KB |
Output is correct |
| 11 |
Correct |
7 ms |
208 KB |
Output is correct |
| 12 |
Correct |
8 ms |
300 KB |
Output is correct |
| 13 |
Correct |
6 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
208 KB |
Output is correct |
| 2 |
Correct |
11 ms |
208 KB |
Output is correct |
| 3 |
Correct |
8 ms |
208 KB |
Output is correct |
| 4 |
Correct |
7 ms |
208 KB |
Output is correct |
| 5 |
Correct |
7 ms |
208 KB |
Output is correct |
| 6 |
Correct |
11 ms |
208 KB |
Output is correct |
| 7 |
Correct |
10 ms |
208 KB |
Output is correct |
| 8 |
Correct |
5 ms |
208 KB |
Output is correct |
| 9 |
Correct |
7 ms |
208 KB |
Output is correct |
| 10 |
Correct |
7 ms |
208 KB |
Output is correct |
| 11 |
Correct |
7 ms |
288 KB |
Output is correct |
| 12 |
Correct |
6 ms |
208 KB |
Output is correct |
| 13 |
Correct |
5 ms |
304 KB |
Output is correct |
| 14 |
Correct |
9 ms |
208 KB |
Output is correct |
| 15 |
Correct |
12 ms |
208 KB |
Output is correct |
| 16 |
Correct |
13 ms |
208 KB |
Output is correct |
| 17 |
Correct |
9 ms |
208 KB |
Output is correct |
| 18 |
Correct |
9 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
208 KB |
Output is correct |
| 20 |
Correct |
10 ms |
300 KB |
Output is correct |
| 21 |
Correct |
7 ms |
208 KB |
Output is correct |
| 22 |
Correct |
9 ms |
208 KB |
Output is correct |
| 23 |
Correct |
8 ms |
336 KB |
Output is correct |
| 24 |
Correct |
7 ms |
304 KB |
Output is correct |
| 25 |
Correct |
9 ms |
208 KB |
Output is correct |
| 26 |
Correct |
9 ms |
208 KB |
Output is correct |
| 27 |
Correct |
7 ms |
208 KB |
Output is correct |
| 28 |
Correct |
8 ms |
208 KB |
Output is correct |
| 29 |
Correct |
8 ms |
208 KB |
Output is correct |
| 30 |
Correct |
7 ms |
208 KB |
Output is correct |
| 31 |
Correct |
10 ms |
280 KB |
Output is correct |
| 32 |
Correct |
10 ms |
208 KB |
Output is correct |
| 33 |
Correct |
9 ms |
208 KB |
Output is correct |
| 34 |
Correct |
8 ms |
208 KB |
Output is correct |
| 35 |
Correct |
9 ms |
208 KB |
Output is correct |
| 36 |
Correct |
7 ms |
300 KB |
Output is correct |
| 37 |
Correct |
8 ms |
208 KB |
Output is correct |
| 38 |
Correct |
8 ms |
208 KB |
Output is correct |
| 39 |
Correct |
9 ms |
208 KB |
Output is correct |
| 40 |
Correct |
10 ms |
236 KB |
Output is correct |
| 41 |
Correct |
9 ms |
208 KB |
Output is correct |
| 42 |
Correct |
10 ms |
208 KB |
Output is correct |
| 43 |
Correct |
10 ms |
208 KB |
Output is correct |
| 44 |
Correct |
8 ms |
208 KB |
Output is correct |
| 45 |
Correct |
12 ms |
208 KB |
Output is correct |
| 46 |
Correct |
12 ms |
208 KB |
Output is correct |
| 47 |
Correct |
10 ms |
208 KB |
Output is correct |
| 48 |
Correct |
8 ms |
248 KB |
Output is correct |
| 49 |
Correct |
13 ms |
208 KB |
Output is correct |
| 50 |
Correct |
11 ms |
208 KB |
Output is correct |
| 51 |
Correct |
14 ms |
308 KB |
Output is correct |
| 52 |
Correct |
16 ms |
208 KB |
Output is correct |
| 53 |
Correct |
6 ms |
208 KB |
Output is correct |
| 54 |
Correct |
7 ms |
208 KB |
Output is correct |
| 55 |
Correct |
8 ms |
208 KB |
Output is correct |
| 56 |
Correct |
7 ms |
208 KB |
Output is correct |
| 57 |
Correct |
10 ms |
304 KB |
Output is correct |
| 58 |
Correct |
11 ms |
208 KB |
Output is correct |
| 59 |
Correct |
14 ms |
208 KB |
Output is correct |
| 60 |
Correct |
11 ms |
208 KB |
Output is correct |
| 61 |
Correct |
11 ms |
284 KB |
Output is correct |
| 62 |
Correct |
13 ms |
208 KB |
Output is correct |
| 63 |
Correct |
11 ms |
296 KB |
Output is correct |
| 64 |
Correct |
13 ms |
236 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
208 KB |
Output is correct |
| 2 |
Correct |
11 ms |
208 KB |
Output is correct |
| 3 |
Correct |
8 ms |
208 KB |
Output is correct |
| 4 |
Correct |
6 ms |
208 KB |
Output is correct |
| 5 |
Correct |
7 ms |
208 KB |
Output is correct |
| 6 |
Correct |
8 ms |
208 KB |
Output is correct |
| 7 |
Correct |
10 ms |
208 KB |
Output is correct |
| 8 |
Correct |
8 ms |
208 KB |
Output is correct |
| 9 |
Correct |
7 ms |
300 KB |
Output is correct |
| 10 |
Correct |
11 ms |
300 KB |
Output is correct |
| 11 |
Correct |
7 ms |
208 KB |
Output is correct |
| 12 |
Correct |
8 ms |
300 KB |
Output is correct |
| 13 |
Correct |
8 ms |
208 KB |
Output is correct |
| 14 |
Correct |
10 ms |
208 KB |
Output is correct |
| 15 |
Correct |
10 ms |
208 KB |
Output is correct |
| 16 |
Correct |
11 ms |
208 KB |
Output is correct |
| 17 |
Correct |
14 ms |
208 KB |
Output is correct |
| 18 |
Correct |
9 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
296 KB |
Output is correct |
| 20 |
Correct |
11 ms |
208 KB |
Output is correct |
| 21 |
Correct |
5 ms |
208 KB |
Output is correct |
| 22 |
Correct |
12 ms |
208 KB |
Output is correct |
| 23 |
Correct |
11 ms |
208 KB |
Output is correct |
| 24 |
Correct |
10 ms |
208 KB |
Output is correct |
| 25 |
Correct |
11 ms |
208 KB |
Output is correct |
| 26 |
Correct |
9 ms |
208 KB |
Output is correct |
| 27 |
Correct |
15 ms |
208 KB |
Output is correct |
| 28 |
Correct |
11 ms |
208 KB |
Output is correct |
| 29 |
Correct |
4 ms |
208 KB |
Output is correct |
| 30 |
Correct |
9 ms |
208 KB |
Output is correct |
| 31 |
Correct |
11 ms |
208 KB |
Output is correct |
| 32 |
Correct |
17 ms |
208 KB |
Output is correct |
| 33 |
Correct |
19 ms |
208 KB |
Output is correct |
| 34 |
Correct |
17 ms |
208 KB |
Output is correct |
| 35 |
Correct |
13 ms |
208 KB |
Output is correct |
| 36 |
Correct |
10 ms |
208 KB |
Output is correct |
| 37 |
Correct |
8 ms |
208 KB |
Output is correct |
| 38 |
Correct |
15 ms |
208 KB |
Output is correct |
| 39 |
Correct |
15 ms |
208 KB |
Output is correct |
| 40 |
Correct |
8 ms |
208 KB |
Output is correct |
| 41 |
Correct |
13 ms |
300 KB |
Output is correct |
| 42 |
Correct |
12 ms |
208 KB |
Output is correct |
| 43 |
Correct |
11 ms |
208 KB |
Output is correct |
| 44 |
Correct |
12 ms |
208 KB |
Output is correct |
| 45 |
Correct |
8 ms |
328 KB |
Output is correct |
| 46 |
Correct |
11 ms |
208 KB |
Output is correct |
| 47 |
Correct |
6 ms |
208 KB |
Output is correct |
| 48 |
Correct |
6 ms |
208 KB |
Output is correct |
| 49 |
Correct |
10 ms |
208 KB |
Output is correct |
| 50 |
Correct |
11 ms |
304 KB |
Output is correct |
| 51 |
Partially correct |
11 ms |
296 KB |
Output is partially correct |
| 52 |
Correct |
9 ms |
208 KB |
Output is correct |
| 53 |
Correct |
13 ms |
208 KB |
Output is correct |
| 54 |
Correct |
12 ms |
208 KB |
Output is correct |
| 55 |
Correct |
15 ms |
300 KB |
Output is correct |
| 56 |
Correct |
7 ms |
208 KB |
Output is correct |
| 57 |
Partially correct |
9 ms |
300 KB |
Output is partially correct |
| 58 |
Partially correct |
13 ms |
300 KB |
Output is partially correct |
| 59 |
Partially correct |
11 ms |
300 KB |
Output is partially correct |
| 60 |
Correct |
10 ms |
208 KB |
Output is correct |
| 61 |
Correct |
13 ms |
208 KB |
Output is correct |
| 62 |
Correct |
10 ms |
208 KB |
Output is correct |
| 63 |
Partially correct |
11 ms |
308 KB |
Output is partially correct |
| 64 |
Partially correct |
11 ms |
208 KB |
Output is partially correct |
| 65 |
Partially correct |
14 ms |
296 KB |
Output is partially correct |
| 66 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 67 |
Correct |
14 ms |
296 KB |
Output is correct |
| 68 |
Correct |
8 ms |
336 KB |
Output is correct |
| 69 |
Partially correct |
10 ms |
296 KB |
Output is partially correct |
| 70 |
Partially correct |
10 ms |
300 KB |
Output is partially correct |
| 71 |
Correct |
7 ms |
208 KB |
Output is correct |
| 72 |
Partially correct |
10 ms |
208 KB |
Output is partially correct |
| 73 |
Partially correct |
12 ms |
208 KB |
Output is partially correct |
| 74 |
Partially correct |
10 ms |
208 KB |
Output is partially correct |
| 75 |
Correct |
10 ms |
208 KB |
Output is correct |
| 76 |
Correct |
14 ms |
208 KB |
Output is correct |
| 77 |
Correct |
5 ms |
348 KB |
Output is correct |
| 78 |
Partially correct |
9 ms |
208 KB |
Output is partially correct |
| 79 |
Correct |
9 ms |
208 KB |
Output is correct |
| 80 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 81 |
Correct |
15 ms |
304 KB |
Output is correct |
| 82 |
Correct |
13 ms |
208 KB |
Output is correct |
