Submission #349055

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
349055	2021-01-16 12:59:36	cheissmart	Synchronization (JOI13_synchronization)	C++14	100 / 100	311 ms	27884 KiB

synchronization

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#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define ALL(v) (v).begin(), (v).end()
#define debug(x) cerr << "Line(" << __LINE__ << ") -> " << #x << " is " << x << endl
using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;
const int INF = 1e9 + 7, N = 2e5 + 7;
vi G[N];
int p[N][20], on[N], tin[N], tout[N], tt, ans[N], last[N];
void dfs(int u, int pa = 0) {
  tin[u] = ++tt;
  p[u][0] = pa;
  for(int i = 1; i < 20; i++)
    p[u][i] = p[p[u][i - 1]][i - 1];
  for(int v:G[u]) if(v != pa)
    dfs(v, u);
  tout[u] = tt;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40