Submission #399671

#	Time	Username	Problem	Language	Result	Execution time	Memory
399671		lukameladze	Semiexpress (JOI17_semiexpress)	C++14	100 / 100	28 ms	336 KiB

semiexpress

# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
using namespace std;
const int N=3e5+5;
long long n,m,k,t,a,b,c,a1[N],ans,mx,cur,pre,st,x;
vector <int> v;
multiset <long long> ms;
multiset <long long> ::iterator it;
int main() {
     cin>>n>>m>>k;
     cin>>a>>b>>c;
     cin>>t;
     for (int i=1; i<=m;i++){
          cin>>a1[i];
     }
     for (int i=1; i<m; i++) {
          cur=(a1[i]-1)*b;
          if (cur>t) continue;
          mx=a1[i]+(t-cur)/a;
          
          //cout<<i<<" "<<cur<<" "<<mx<<endl;
          if (mx>=a1[i+1]-1) {
               ans+=a1[i+1]-a1[i];
       //        cout<<a1[i]<<" "<<a1[i+1]-1<<endl;
               continue;
          }
          ans+=mx-a1[i]+1;
       //   cout<<a1[i]<<" "<<mx<<endl;
          pre=a1[i];
          st=mx+1;
          int ww=0;
          while (true) {
              ww++;
             if (ww>k-m) break;
               cur+=(st-pre)*c;
              // cout<<st<<" "<<pre<<" "<<cur<<endl;
               if (cur>t) break;
               mx=st+(t-cur)/a;
               mx=min(mx,a1[i+1]-1);
               //cout<<mx<<endl<<endl;
            // cout<<st<<"   "<<mx<<endl;
              ms.insert(mx-st+1);
              if (ms.size()>k-m) {
              	it=ms.begin();
              	x=*it;
              	ms.erase(ms.find(x));
			  }
               pre=st;
               st=mx+1;               
               if (mx==a1[i+1]-1) break;
          }
     }
     if ((a1[m]-1)*b<=t) ans++;
     for (it=ms.begin(); it!=ms.end(); it++) {
     	x=*it;
     	ans+=x;
	 }
     cout<<ans-1<<endl;
}

Compilation message (stderr)

semiexpress.cpp: In function 'int main()':
semiexpress.cpp:45:28: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   45 |               if (ms.size()>k-m) {
      |                   ~~~~~~~~~^~~~

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