Submission #1059965

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1059965	2024-08-15 09:43:06	parsadox2	Thousands Islands (IOI22_islands)	C++17	24 / 100	33 ms	10332 KiB

islands

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#include "islands.h"
#include <variant>
#define F first
#define S second
using namespace std;
const int N = 1e5 + 10 , M = 2e5 + 10;
int n , m , dis[N] , st_tim[N] , fn_tim[N] , tim;
vector <pair<int , int>> adj[N];
pair <int , int> par[N] , bh[N];
bool marked[N];
void Dfs(int v)
{
  marked[v] = true;
  st_tim[v] = tim;
  tim++;
  for(auto u : adj[v])
  {
    if(!marked[u.F])
    {
      par[u.F] = make_pair(v , u.S);
      dis[u.F] = dis[v] + 1;
      Dfs(u.F);
    }
    else if(fn_tim[u.F] == 0)
    {
      if(bh[v].F == -1 || dis[bh[v].F] < dis[u.F])
        bh[v] = u;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:100:1: warning: control reaches end of non-void function [-Wreturn-type]
  100 | }
      | ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 24 / 24
• Subtask 5: 0 / 45