Submission #292125

#	Time	Username	Problem	Language	Result	Execution time	Memory
292125		YJU	Semiexpress (JOI17_semiexpress)	C++14	100 / 100	1 ms	512 KiB

semiexpress

#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=2e5+5;
const ld pi=3.14159265359;
const ll INF=(1LL<<60);
typedef pair<ll,pair<ll,pair<ll,pll> > > TY;
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

ll n,m,k,A,B,C,T,ans,s[N];
priority_queue<TY>  pq;
ll l,r,nl,nr,li,cost,ncost;

ll R(ll c,ll st){
	return st+1+(T-c)/A;
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n>>m>>k>>A>>B>>C>>T;
	REP(i,m)cin>>s[i];
	s[m]=n+1;
	REP(i,m){
		if(T<(s[i]-1)*B)continue;
		l=s[i];r=min(s[i+1],R((s[i]-1)*B,l));
		ans+=r-l;
		ll tmp=(s[i]-1)*B+(r-l)*C;
		if(tmp<=T)pq.push(mp(min(s[i+1],R(tmp,r))-r,mp(tmp,mp(s[i+1],mp(r,min(s[i+1],R(tmp,r)))))));
	}
	REP(ti,k-m){
		if(SZ(pq)==0)break;
		auto kk=pq.top();pq.pop();
		l=kk.Y.Y.Y.X,r=kk.Y.Y.Y.Y,li=kk.Y.Y.X,cost=kk.Y.X;
		ans+=kk.X;
		if(cost+(r-l)*C>T)continue;
		ncost=cost+(r-l)*C;
		nl=r,nr=min(li,R(ncost,r));
		pq.push(mp(nr-nl,mp(ncost,mp(li,mp(nl,nr)))));
	}
	cout<<max(ans-1,0LL)<<"\n";
	return 0;
}

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