Submission #398693

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
398693	2021-05-04 17:53:46	eggag32	The Xana coup (BOI21_xanadu)	C++17	100 / 100	78 ms	16920 KiB

xanadu

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef vector<int> vi;
#define debug(x) cerr << #x << " " << x << '\n'
#define debug2(x, y) debug(x), debug(y)
#define rep(i, a) for(int i = 0; i < (a); i++)
#define repn(i, a, b) for(int i = (a); i < (b); i++)
#define all(v) v.begin, v.end()
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define sq(x) ((x) * (x))
#define inf 0x3f3f3f3f
const int mxN = 1e5 + 5;
int n;
int c[mxN];
int dp[mxN][2][2];
vi g[mxN];
void dfs(int cur, int prev){
  //dp[node][type: 0 for all 0s, 1 for 1 at root, the rest 0s][flipped]
  int cnt = 0;
  for(int x : g[cur]) if(x != prev){
    cnt++;
    dfs(x, cur);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30