Submission #1170828

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1170828	2025-03-20 08:37:22	thelegendary08	Thousands Islands (IOI22_islands)	C++17	9.10 / 100	220 ms	37916 KiB

islands

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#include "islands.h"
#include<bits/stdc++.h>
#define vi vector<int>
#define pb push_back
#define FOR(i, k, n) for(int i = k; i<n; i++)
#define f0r(i,n) for(int i = 0;  i< n; i++)
#define mp make_pair
#define pii pair<int,int>
#define vout(x) for(auto u : x)cout<<u<<' '; cout<<'\n';
using namespace std;
vector<set<int>>adj;
vi from;
vector<bool>vis;
pii branch;
int st;
bool ok = 0;
vector<int>doob;
void dfs(int x, int fr){
  if(ok)return;
  vis[x] = 1;
  int cnt = adj[x].size();
  if(fr != -1)cnt--;
  if(cnt >= 2){
    st = x;
    branch = mp(*(adj[x].begin()), *(++adj[x].begin()));
    ok = 1;
    return;
  }
  for(auto u : adj[x]){
    if(u == fr)continue;
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 7.35 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45