Submission #834254

#	Time	Username	Problem	Language	Result	Execution time	Memory
834254		gagik_2007	Catfish Farm (IOI22_fish)	C++17	14 / 100	754 ms	154468 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define ff first
#define ss second

ll ttt;
const ll INF=1e18;
const ll MOD=1e9+7;
const ll N=3007;
ll n,m,k;
ll pf[N][N];
ll dp[N][20][20];

ll max_weights(int NN, int MM, vector<int> X, vector<int> Y, vector<int> W) {
    n=NN;
    m=MM;
    for(int i=0;i<m;i++){
        pf[X[i]][Y[i]+1]=W[i];
    }
    for(int i=0;i<n;i++){
        for(int j=1;j<max(n,10ll);j++){
            pf[i][j]+=pf[i][j-1];
        }
    }
    for(int i=0;i<=9;i++){
        // cout<<dp[0][1][1]<<endl;
        dp[0][0][i]=pf[1][i];
        // cout<<"0, 0, "<<i<<": "<<dp[0][0][i]<<endl;
    }
    // cout<<endl;
    ll ans=0;
    for(int i=1;i<n;i++){
        for(int j=0;j<=9;j++){
            for(int k=0;k<=9;k++){
                // cout<<i<<", "<<k<<", "<<j<<": ";
                for(int p=0;p<=9;p++){
                    // cout<<p<<": ";
                    ll res=dp[i-1][p][k];
                    // cout<<i-1<<" "<<p<<" "<<k<<": "<<dp[i-1][p][k]<<" ";
                    res-=pf[i][min(k,j)];
                    // cout<<res<<" ";
                    if(j>p&&j>k){
                        res+=pf[i-1][j]-pf[i-1][max(p,k)];
                    }
                    // cout<<res<<" ";
                    if(i!=n-1){
                        res+=pf[i+1][j];
                    }
                    dp[i][k][j]=max(dp[i][k][j],res);
                    // cout<<res<<",   ";
                }
                ans=max(ans,dp[i][k][j]);
                // cout<<dp[i][k][j]<<"\n";
            }
            // cout<<endl;
        }
        // cout<<endl;
    }
    return ans;
}

• Subtask 1: 0 / 3
• Subtask 2: 0 / 6
• Subtask 3: 0 / 9
• Subtask 4: 14 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16