Submission #720921

#	Time	Username	Problem	Language	Result	Execution time	Memory
720921		Yell0	Catfish Farm (IOI22_fish)	C++17	9 / 100	31 ms	7512 KiB

fish

#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
const int MN=1e5+2;
struct fish{fish(int xi,int yi,int wi):x(xi),y(yi),w(wi){} int x,y,w;};

ll max_weights(int N,int M,vector<int> X,vector<int> Y,vector<int> W) {
  ll dp[MN][2][2],w[MN],ans=0;
  for(int i=0;i<M;++i) w[X[i]+1]=W[i];
  for(int i=1;i<=N;++i) {
    dp[i][0][0]=max(dp[i-1][0][0],dp[i-1][1][0]);
    dp[i][1][0]=max(dp[i-1][0][1],dp[i-1][1][1]);
    dp[i][0][1]=max(dp[i-1][0][0]+w[i-1],dp[i-1][1][0])+w[i+1];
    dp[i][1][1]=max(dp[i-1][0][1],dp[i-1][1][1])-(i>1?w[i]:0)+w[i+1];
    ans=max({ans,dp[i][0][0],dp[i][0][1],dp[i][1][1],dp[i][1][0]});
  }
  return ans;
}

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