Submission #1024793

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1024793	2024-07-16 10:23:48	mansur	Thousands Islands (IOI22_islands)	C++17	55 / 100	46 ms	16732 KiB

islands

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#include "islands.h"
#include <bits/stdc++.h>
#include <variant>
using namespace std;
#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int) s.size()
#define s second 
#define f first 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
const int N = 3e5;
vector<pii> g[N], pr(N);
vector<int> was(N), ans;
bool dfs(int u, int x) {
    was[u] = 1;
    if (sz(g[u]) > 1 + (u > 0)) {
        for (auto [to, id]: g[u]) {
            if (id == x) continue;
            ans.push_back(id);
            ans.push_back(id ^ 1);
        }
        for (auto [to, id]: g[u]) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 21 / 21
• Subtask 4: 24 / 24
• Subtask 5: 0 / 45