제출 #778752

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
778752		YassirSalama	메기 농장 (IOI22_fish)	C++17	0 / 100	28 ms	12500 KiB

fish

#include "fish.h"
#include<bits/stdc++.h>
#include <vector>
using namespace std;
#define all(v) v.begin(),v.end()
const int MAXN=1e5+1000;
long long dp[MAXN][2];//0 last one is not built, 1 last one is built
vector<int> v(MAXN,0);
int n;
int m;
long long solve(int i,int st){
    if(i==MAXN) return 0LL;
    if(dp[i][st]!=-1) return dp[i][st];
    if(v[i]==0){
        return dp[i][0]=dp[i][1]=solve(i+1,1);
    }
    long long mx=0;
    if(st==1){
        mx=max(mx,solve(i+1,0)+v[i]);
        mx=max(mx,solve(i+1,1));
        mx=max(mx,solve(i+2,1)+v[i]);
    }else{
        mx=max(mx,solve(i+1,1));
        mx=max(mx,solve(i+2,1)+v[i]);
    }
    return dp[i][st]=mx;
}
long long max_weights(int N, int M, vector<int> X, vector<int> Y,
                      vector<int> W) {
    memset(dp,-1,sizeof(dp));
    for(int i=0;i<M;i++) v[X[i]]+=W[i];
    return solve(0,0);
}

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