Submission #972604

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
972604	2024-04-30 18:24:22	kl0989e	The Xana coup (BOI21_xanadu)	C++17	100 / 100	60 ms	22540 KiB

xanadu

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pb push_back
#define vi vector<int>
#define pi pair<int, int>
#define all(x) (x).begin(),(x).end()
const int maxn=1e5+10;
vector<vi> graph(maxn);
vector<vi> dp(maxn,vi(4,1e9));// (on,on), (off,off), (off,on), (on,off)
vi onoff(maxn,0);
void dfs(int cur, int prev=-1) {
    if (graph[cur].size()==1 && cur!=0) {
        if (onoff[cur]) {
            dp[cur][0]=0;
            dp[cur][2]=0;
        }
        else {
            dp[cur][1]=0;
            dp[cur][3]=0;
        }
        return;
    }
    int sum1=0,sum2=0;
    int sig1=1,sig2=1;//1=on & 0=off
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30