Submission #493136

#	Time	Username	Problem	Language	Result	Execution time	Memory
493136		Biaz	Semiexpress (JOI17_semiexpress)	C++17	18 / 100	73 ms	316 KiB

semiexpress

#include <bits/stdc++.h>
#define int long long
//#define double long double
#define Nanase_Kurumi_aka_menhera_chan_is_mine ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define pb push_back
#define pi pair<int, int>
#define ALL(i) i.begin(),i.end()
#define gcd(i,j) __gcd(i,j)
#define fi first
#define se second
#define eps 0.00000001
#define ist insert
#define DNE nullptr
//#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector,fast-math")
//#pragma GCC optimize("O2")
int max(int x,int y){return x>=y?x:y;}
int min(int x,int y){return x>=y?y:x;}
using namespace std;
typedef int ll;
const int N=100005;
const int M=1000005;
const int MOD=1000000007;//998244353;
const int INF=1000000000000000000;//2147483647;

int n,m,k,A,B,C,T;
int s[N],has[N];
int calc(int x,int y){
    int cnt=0,j=1,k=1;
    vector<int> tim(n+5,0),semi(m+2);
    for (int i=0;i<m;i++) semi[i]=s[i];
    semi[m]=x;semi[m+1]=y;
    sort(ALL(semi));
    for (int i=2;i<=n;i++){
        tim[i]=tim[i-1]+A;
        if (s[j]==i)
            tim[i]=min(tim[i],tim[s[j-1]]+(i-s[j-1])*B),j++;
        if (semi[k]==i)
            tim[i]=min(tim[i],tim[semi[k-1]]+(i-semi[k-1])*C),k++;
    }
    for (int i=1;i<=n;i++)
        if (tim[i]<=T)
            cnt++;
    return cnt;
}
inline void sol(){
    cin >>n>>m>>k>>A>>B>>C>>T;
    for (int i=0;i<m;i++)
        cin >>s[i],has[s[i]]=1;
    int ans=0;
    for (int i=1;i<=n;i++){
        if (has[i]) continue;
        for (int j=i+1;j<=n;j++)
            if (!has[j])
                ans=max(ans,calc(i,j));
    }

    cout <<ans-1<<'\n';
}
signed main(){
    Nanase_Kurumi_aka_menhera_chan_is_mine
    int _=1;
    //cin >>_;
    while (_--) sol();
    return 0;
}

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