Submission #1305703

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305703		vtnoo	Catfish Farm (IOI22_fish)	C++20	0 / 100	12 ms	2112 KiB

fish

#include <bits/stdc++.h>
#define pb push_back
#define fst first
#define snd second
#define fore(i,a,b) for(int i=a,pao=b;i<pao;++i)
#define SZ(x) ((int)x.size())
#define ALL(x) x.begin(),x.end()
#define mset(a,v) memset((a),(v),sizeof(a))
#define FIN ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
using namespace std;
typedef long long ll;
const int MAXN=300,MAXY=10;
const ll INF=1e18;
ll pref[MAXN][MAXY];
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
	fore(i,0,M){
		pref[X[i]][Y[i]+1]+=W[i];
	}
	fore(i,0,N){
		fore(j,1,10){
			pref[i][j]+=pref[i][j-1];
		}
	}
	vector<vector<ll>>dp(10,vector<ll>(10,0));
	fore(l,0,10)fore(r,0,10){
		if(r>l)dp[l][r]=pref[0][r]-pref[0][l];
	}
	fore(i,1,N-1){
		vector<vector<ll>>ndp(10,vector<ll>(10,0));
		fore(l,0,10){
			fore(m,0,10){
				fore(r,0,10){
					ndp[m][r]=max(ndp[m][r],dp[l][m]+(pref[i][max(l,r)]-pref[i][m]));
				}
			}
		}
		dp.swap(ndp);
	}
	ll ans=0;
	fore(l,0,10)fore(r,0,10){
		if(l>r)ans=max(ans,dp[l][r]+(pref[N-1][l]-pref[N-1][r]));
	}
	return ans;
}

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