Submission #990073

#	Time	Username	Problem	Language	Result	Execution time	Memory
990073		cpdreamer	Catfish Farm (IOI22_fish)	C++17	14 / 100	1113 ms	2097152 KiB

fish

#include "fish.h"

#include <bits/stdc++.h>
using namespace std;
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,std::vector<int> W) {
    vector<vector<long long>> vp(N, vector<long long>(N + 2));
    for (int i = 0; i < N; i++)
        vp[i].assign(N + 2, 0);
    for (int i = 0; i < M; i++)
        vp[X[i]][Y[i] + 1] += W[i];
    for (int i = 0; i < N; i++)
        for (int j = 1; j <= N; j++)
            vp[i][j] += vp[i][j - 1];
    long long dp[N][N+2][N+2];
    memset(dp,0,sizeof(dp));
    for (int i = 0; i <= min(N,10); i++) {
        for (int j = 0; j <= min(N,10); j++) {
            dp[0][i][j] = max(dp[0][i][j],vp[0][j] - vp[0][i]);
        }
    }
    for (int i = 1; i < N; i++) {
        for (int j = 0; j <=min(N,10); j++) {
            for (int g = 0; g <= min(N,10); g++) {
                for (int e = 0; e <=min(N,10); e++) {
                    dp[i][j][g]=max(dp[i][j][g],dp[i-1][e][j]+max(max(vp[i][e]-vp[i][j],0LL),max(vp[i][g]-vp[i][j],0LL)));
                }
            }
        }
    }
    long long  ans=0;
    for(int i=0;i<=min(N,10);i++){
        ans=max(ans,dp[N-1][i][0]);
    }
    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