Submission #1069721

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1069721	2024-08-22 08:30:58	UmairAhmadMirza	Longest Trip (IOI23_longesttrip)	C++17	40 / 100	991 ms	600 KiB

longesttrip

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#include <bits/stdc++.h>
using namespace std;
bool are_connected(vector<int> A, vector<int> B);
int const MAXN=260;
bool con[MAXN][MAXN];
vector<int> path,longest;
bool vis[MAXN];
int nn;
void dfs(int node){
  path.push_back(node);
  if(path.size()>longest.size())
    longest=path;
  vis[node]=1;
  for(int i=0;i<nn;i++)
    if(vis[i]==0 && con[node][i])
      dfs(i);
  path.pop_back();
}
vector<int> longest_trip(int n, int D){
  longest.clear();
  nn=n;
  vector<int> a,b;
  for(int i=0;i<n;i++){
    a.push_back(i);
    for(int j=i+1;j<n;j++){
      b.push_back(j);
      con[i][j]=con[j][i]=are_connected(a,b);
      b.pop_back();
 
 
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Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:38:8: warning: unused variable 'bl' [-Wunused-variable]
   38 |   bool bl=0;
      |        ^~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 25 / 25
• Subtask 4: 0 / 60