Submission #401013

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
401013	2021-05-09 06:51:31	errorgorn	The Xana coup (BOI21_xanadu)	C++17	100 / 100	113 ms	20036 KiB

xanadu

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ii pair<int,int>
#define fi first
#define se second
#define endl '\n'
#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back
#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);(s<e?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()
const int INF=1e9;
int n;
int arr[100005];
vector<int> al[100005];
int memo[100005][2][2];
int dfs(int i,int p,int on,int toggle){
  if (memo[i][on][toggle]!=-1) return memo[i][on][toggle];
  
  //if toggle=false, then our children must be on=false
  //else children must be on=true
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30