Submission #881181

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
881181	2023-11-30 19:43:17	alexdd	Biochips (IZhO12_biochips)	C++17	100 / 100	598 ms	402084 KiB

biochips

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#include<iostream>
#include<vector>
using namespace std;
const int INF = 1e9;
int n,m,root;
vector<int> con[200005];
int a[200005];
int siz[200005];
int dp[200005][505];
void dfs(int nod)
{
    for(auto adj:con[nod])
    {
        dfs(adj);
        for(int i=min(m,siz[nod]+siz[adj]);i>0;i--)
        {
            ///j <= siz[nod]
            ///i-j <= siz[adj]  =>  j >= i - siz[adj]
            ///i-j >= 0  =>  j <= i
            if(min(siz[nod],i) - max(0,i-siz[adj]) < min(siz[adj],i) - max(0,i-siz[nod]))
            {
                for(int j=max(0,i-siz[adj]);j<=min(siz[nod],i);j++)
                    dp[nod][i] = max(dp[nod][i], dp[nod][j] + dp[adj][i-j]);
            }
            else
            {
                for(int j=max(0,i-siz[nod]);j<=min(siz[adj],i);j++)
                    dp[nod][i] = max(dp[nod][i], dp[nod][i-j] + dp[adj][j]);
            }
        }
 
 
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• Subtask 1: 100 / 100