Submission #635218

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
635218	2022-08-25 16:50:32	youngyojun	Thousands Islands (IOI22_islands)	C++17	100 / 100	133 ms	16744 KiB

islands

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#include "islands.h"
#include <bits/stdc++.h>
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define delv(V,x) (V).erase(find(allv(V),(x)))
using namespace std;
const int MAXN = 100'055;
const int MAXM = 200'055;
vector<int> G[MAXN], T[MAXN];
int oc[MAXN];
bitset<MAXM> dead;
variant<bool, vector<int>> find_journey(int N, int M, vector<int> A, vector<int> B) {
  for(int i = M; i--;) {
    G[A[i]].eb(i);
    T[B[i]].eb(i);
    oc[A[i]]++;
  }
  vector<int> PV;
  int S = 0;
  vector<int> ZV;
  for(int i = N; i--;) if(!oc[i]) ZV.eb(i);
  while(1 == oc[S] || !ZV.empty()) {
    if(1 == oc[S]) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 21 / 21
• Subtask 4: 24 / 24
• Subtask 5: 45 / 45