Submission #1031822

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031822		Malix	Catfish Farm (IOI22_fish)	C++17	12 / 100	55 ms	20064 KiB

fish

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

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> tii;
typedef vector<ll> li;
typedef vector<li> lii;

#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define LSOne(s) ((s)&(-s))

ll INF=1e16+10;
int inf=1e9+10;
ll M=1e9+7;

long long max_weights(int n, int m, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
  vector<vector<ll>> dp(n,vector<ll>(2,0));
  vector<ll> arr(n,0);
  REP(i,0,m)arr[X[i]]+=(ll)W[i];
  dp[0][0]=arr[1];
  dp[1][0]=arr[0];dp[1][1]=arr[1];
  if(n>2)dp[1][0]+=arr[2];
  REP(i,2,n){
    dp[i][1]=max(dp[i-1][0],dp[i-1][1]);
    dp[i][0]=max(dp[i-1][0]-arr[i],max(dp[i-2][1]+arr[i-1],dp[i-2][0]));
    if(i!=n-1)dp[i][0]+=arr[i+1];
  }
  return max(dp[n-1][0],dp[n-1][1]);
}

• Subtask 1: 3 / 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