Submission #1067655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1067655		vjudge1	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	12 ms	4564 KiB

semiexpress

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define bit(n,i) ((n>>i)&1)
#define all(x) x.begin(),x.end()
#define int long long
typedef long long ll;
typedef pair<int,int> pii;
typedef double ld;
typedef pair<ld,ld> pdd;
typedef pair<ll,ll> pll;
const ll maxn=1e5+5;
const ll offset=2e5;
const ll inf=1e18;
const int base=350;
const ll mod=998244353;
int n,m,k,a,b,c,T,s[maxn],pre,res;
vector<int> L;

void sol()
{
    cin >> n>> m>> k >> a>> b>> c >> T;
    for1(i,1,m) cin >> s[i];
    s[m+1]=s[m]+1;
    for1(i,1,m)
    {
//        cerr<<s[i]<<' '<<pre<<'\n';
        pre=(s[i]-1)*b;
        if (pre>T) break;
        int j=s[i]+(T-pre)/a+1,pre2=0;
        j=min(j,s[i+1]);
        res+=(j-s[i]);
        int cnt=0;
        while (j<s[i+1])
        {
            if (cnt>=k-m) break;
            pre2=(j-s[i])*c;
            if (pre+pre2> T) break;
            int nxt=j+(T-pre-pre2)/a;
            nxt=min(nxt,s[i+1]-1);
            L.pb(nxt-j+1);
            cnt++;
//            cerr<< nxt-j+1<<" gg\n";
            j=nxt+1;
        }
    }
    sort(all(L),greater<int>());
    int x=L.size();
    for1(i,0,min(k-m-1,x-1)) res+=L[i];
    cout << res-1;


}
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
//    freopen("1017G.inp","r",stdin);
//    freopen("1017G.out","w",stdout);

    int t=1;//cin >> t;
    while (t--) {
        sol();
    }
}

/*
4 12
1 2 3
1 3
2 3
2 1
1 2
1 2
1 4
1 1
1 1
2 4
2 3
1 1
3 4



*/

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