제출 #404667

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
404667	2021-05-14 19:43:01	nicolaalexandra	The Xana coup (BOI21_xanadu)	C++14	100 / 100	166 ms	17664 KiB

xanadu

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#include <bits/stdc++.h>
#define DIM 200010
#define INF 10000000
using namespace std;
int dp[DIM][2][2],v[DIM],aux[2][2];
vector <int> L[DIM];
int n,i,x,y;
void dfs (int nod, int tata){
    int ok = 0;
    for (auto vecin : L[nod])
        if (vecin != tata){
            ok = 1;
            dfs (vecin,nod);
        }
    if (!ok){
        dp[nod][v[nod]][0] = 0;
        dp[nod][1-v[nod]][1] = 1;
    } else {
        /// caz 1: nu dau switch in nod
        dp[nod][v[nod]][0] = 0;
        dp[nod][1-v[nod]][1] = 1;
        for (auto vecin : L[nod]){
            if (vecin == tata)
                continue;
            for (int i=0;i<2;i++)
                for (int j=0;j<2;j++)
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30