Submission #291323

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
291323	2020-09-05 05:54:41	someone_aa	Railway (BOI17_railway)	C++17	100 / 100	427 ms	44912 KiB

railway

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#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define pii pair<int,int>
#define pll pair<ll, ll>
#define sz(x) int(x.size())
using namespace std;
const int maxn = 100100;
const int maxlog = 20;
vector<int>g[maxn];
vector<int>gt[maxn];
ll n, q, k;
int opent[maxn], euler[maxn];
int sbtsize[maxn], br;
int depth[maxn];
int parent[maxn][maxlog];
void dfs_preprocess(int node, int p, int d) {
  opent[node] = br;
  euler[br] = node;
  sbtsize[node] = 1;
  depth[node] = d;
  br++;
  parent[node][0] = p;
  for(int i:g[node]) {
 
 
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Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.cpp:99:7: warning: unused variable 'root' [-Wunused-variable]
   99 |  bool root;
      |       ^~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25