Submission #854636

#	Time	Username	Problem	Language	Result	Execution time	Memory
854636		willychan	Semiexpress (JOI17_semiexpress)	C++14	0 / 100	0 ms	348 KiB

semiexpress

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds
#define int ll

ll dp[3005];

vector<int> stop;

signed main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int n,m,k;cin>>n>>m>>k;
	int a,B,c;cin>>a>>B>>c;
	ll T;cin>>T;
	stop.resize(m);
	k-=m;
	for(int i=0;i<k;i++) dp[i]=0;
	for(int i=0;i<m;i++){cin>>stop[i];stop[i]--;}
	for(int i=1;i<m;i++){
		if(stop[i-1]*B>=T) break;
		for(int b=k;b>=0;b--){
			int tt = stop[i-1]*B;
			int ss = stop[i-1]+((T-tt)/a)+1;
			for(int j=0;j<=b;j++){
				dp[b]= max(dp[b-j]+min(ss-stop[i-1],stop[i]-stop[i-1]),dp[b]);
				tt = ss*c;
				ss = ss+((T-tt)/a)+1;
				if(tt>=T) break;
			}
		}
	}
	cout<<dp[k]<<"\n";

	return 0;
}

• Subtask 1: 0 / 18
• Subtask 2: 0 / 30
• Subtask 3: 0 / 52