Submission #434987

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
434987	2021-06-22 17:22:24	model_code	Keys (IOI21_keys)	C++17	100 / 100	1584 ms	52776 KiB

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#include <bits/stdc++.h>
using namespace std;
// randomized solution
// terminate early if visited
const int n_max = 300500;
vector<int> keylist;
vector<int> visited_list;
vector<int> blocked_list;
bool has_key[n_max];
bool visited[n_max];
int homekey[n_max];
int a[n_max];
vector<pair<int,int>> adj[n_max];
bool finished[n_max];
vector<int> blocked[n_max];
void cleanup() {
    for(int i: blocked_list) {
        blocked[i].clear();
    }
    blocked_list.clear();
    for(int i: visited_list) {
        visited[i] = false;
        has_key[homekey[i]] = false;
    }
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 30 / 30
• Subtask 5: 33 / 33