Submission #1040245

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1040245	2024-07-31 19:44:55	soroostab	Railway (BOI17_railway)	C++14	100 / 100	67 ms	32200 KiB

railway

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#include <bits/stdc++.h>
#define ll long long int
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pcc pair<char,char>
#define pbb pair<bool,bool>
#define PB push_back
#define PF push_front
#define MOD 1000000007
#define intxt freopen("input.txt","r",stdin)
#define outtxt freopen("output.txt","w",stdout)
using namespace std;
const int MAXN = 1e5 + 10;
ll n ,q ,k ,q1 ,q2 ,qq ,x = 1;
ll par[MAXN][20] ,h[MAXN] ,st[MAXN];
ll change[MAXN] ,ans[MAXN];
vector <pii> adj[MAXN];
vector <int> isvalid;
inline void dfs(int v , int p = 0) {
  st[v] = x;
  x++;
  for(auto u : adj[v]) {
    if(u.f == p) {
      continue;
    }
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25