Submission #173968

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
173968	2020-01-05 22:00:07	mcdx9524	Nice sequence (IZhO18_sequence)	C++14	76 / 100	2067 ms	36476 KiB

sequence

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());
int rand(int l, int r) {
    return uniform_int_distribution<int> (l, r) (rnd);
}
const int N = 5e5 + 7;
int n, m;
vector <int> p;
vector <int> ord;
vector <int> g[N];
bool used[N];
int col[N];
bool cycle(int v) {
    col[v] = 1;
    for (int u : g[v]) {
        if (col[u] == 0) {
            if (cycle(u)) {
                return true;
            }
        } else if (col[u] == 1) {
            return true;
 
 
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• Subtask 2: 9 / 9
• Subtask 3: 14 / 14
• Subtask 4: 15 / 15
• Subtask 5: 14 / 14
• Subtask 6: 18 / 18
• Subtask 7: 0 / 24