제출 #1223305

#제출 시각아이디문제언어결과실행 시간메모리
1223305brinton메기 농장 (IOI22_fish)C++20
9 / 100
17 ms4168 KiB
#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());
}
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