Submission #955801

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
955801	2024-03-31 12:34:05	n1k	Thousands Islands (IOI22_islands)	C++17	19.25 / 100	38 ms	9684 KiB

islands

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#include "islands.h"
  
#include <bits/stdc++.h>
  
using namespace std;
  
vector<vector<array<int, 2>>> g, rg;
vector<int> color, par, del, deg;
  
map<int, int> cache;
  
int dfs(int u, int p){
  par[u] = p;
  del[u] = 1;
  int out_deg = 0;
  for(auto [v, e]:g[u]){
    out_deg += 1-del[v];
  }
  if(out_deg>1)
    return 1;
  bool ok = 0;
  for(auto [v, e]:g[u]){
    if(del[v])
      continue;
    ok |= dfs(v, u);
  }
 
 
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• Subtask 1: 1.75 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 7.35 / 21
• Subtask 4: 8.399999999999999 / 24
• Subtask 5: 0 / 45