Submission #68295

#	Time	Username	Problem	Language	Result	Execution time	Memory
68295		Windazz	Semiexpress (JOI17_semiexpress)	C++14	0 / 100	3 ms	508 KiB

semiexpress

#include <iostream>
#include <fstream>
#include <cstring>
#include <sstream>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <iterator>
#include <ext/pb_ds/assoc_container.hpp>

#define x first
#define y second
#define mp make_pair
#define up_b upper_bound
#define low_b lower_bound
#define sz(x) (int)x.size()
#define bit __builtin_popcount
#define all(x) x.begin(),x.end()

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
typedef pair<int,ll> pil;
typedef pair<ll,int> pli;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;

const ll INF=1e18+123;
const ld EPS=1e-9;
const int inf=1e9+123;
const int MOD=1e9+7;
const int N=1e5+123;
const int dx[]={0,0,1,-1};
const int dy[]={1,-1,0,0};

int s[N];

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,m,k;
    cin>>n>>m>>k;
    ll a,b,c,t;
    cin>>a>>b>>c>>t;
    for(int i=1;i<=m;i++){
        cin>>s[i];
    }
    k-=m;
    ll ans=0;
    int lk=-1;
    multiset<int>q;
    for(int i=2;i<=m;i++){
        ll d=(s[i-1]-1)*b;
        if(d>t)break;
        ans++;
        int L=s[i-1];
        while(L<s[i]-1){
            int l=L+1,r=s[i];
            while(l<r){
                int mid=(l+r)/2;
                if((mid-s[i-1]+0ll)*a+d<=t){
                    l=mid+1;
                }
                else r=mid;
            }
            r--;
            if((r-s[i-1]+1)*c+d>t){
                L=inf;
                break;
            }
            int x=min((t-((r-s[i-1]+1)*c+d))/a+1,s[i]-r-1ll);
            ans+=r-L;
            L=r;
            if(sz(q)==k){
                if(k && *q.begin()<x){
                    ans-=*q.begin();
                    q.erase(q.begin());
                    ans+=x;
                    L+=x;
                    q.insert(x);
                }
                else{
                    L=inf;
                    break;
                }
            }
            else{
                L+=x;
                ans+=x;
                q.insert(x);
            }
        }
    }
    ans+=((s[m]-1)*b<=t);
    cout<<ans-1<<" ";
    return 0;
}

Compilation message (stderr)

semiexpress.cpp: In function 'int main()':
semiexpress.cpp:59:9: warning: unused variable 'lk' [-Wunused-variable]
     int lk=-1;
         ^~

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