Submission #1223305

#	Time	Username	Problem	Language	Result	Execution time	Memory
1223305		brinton	Catfish Farm (IOI22_fish)	C++20	9 / 100	17 ms	4168 KiB

fish

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

long long max_weights(int N, int M, vector<int> X, vector<int> Y,vector<int> W) {
  vector<long long> val(N+1,0);
  for(int i = 0;i < M;i++) val[X[i]] = W[i];
  vector<long long> dp(N,0);// last_wall taken
  auto gdp = [&](int i){
    if(i < 0) return 0LL;
    return dp[i];
  };
  auto gval = [&](int i){
    if(i < 0 || i >= N) return 0LL;
    return val[i];
  };
  for(int i = 0;i < N;i++){

    dp[i] = max({gdp(i-3)+gval(i-1)+gval(i+1),gdp(i-2)+gval(i+1),gdp(i-1)-gval(i)+gval(i+1)});
  }
  return *max_element(dp.begin(),dp.end());
}

• 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