Submission #493264

#	Time	Username	Problem	Language	Result	Execution time	Memory
493264		Biaz	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	14 ms	4540 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=305;
const int M=1000005;
const int MOD=1000000007;//998244353;
const int INF=1000000000000000000;//2147483647;



inline void sol(){
    int n,m,k,A,B,C,T;
    cin >>n>>m>>k>>A>>B>>C>>T;
    vector<int> s(m);
    for (int i=0;i<m;i++)
        cin >>s[i];
    k-=m;
    int ans=0;
    vector<int> choose;
    for (int i=0;i<m-1;i++){
        int cur=(s[i]-1)*B,p=s[i];
        vector<int> tmp;
        while (cur<=T&&p<s[i+1]&&tmp.size()<(k+1)){
            int nxt=min(p+(T-cur)/A,s[i+1]-1);
            tmp.pb(nxt-p+1);
            cur+=(nxt-p+1)*C;
            p=nxt+1;
        }
        if (tmp.size()){
            ans+=tmp[0];
            for (int i=1;i<tmp.size();i++)
                choose.pb(tmp[i]);
        }
    }
    sort(ALL(choose),greater<int>());
    if ((s[m-1]-1)*B<=T) ans++;
    for (int i=0;i<min(k,choose.size());i++)
        ans+=choose[i];
    --ans; // 1 can't
    cout <<ans<<'\n';

}
signed main(){
    Nanase_Kurumi_aka_menhera_chan_is_mine
    int _=1;
    //cin >>_;
    while (_--) sol();
    return 0;
}

Compilation message (stderr)

semiexpress.cpp: In function 'void sol()':
semiexpress.cpp:39:44: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   39 |         while (cur<=T&&p<s[i+1]&&tmp.size()<(k+1)){
      |                                  ~~~~~~~~~~^~~~~~
semiexpress.cpp:47:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |             for (int i=1;i<tmp.size();i++)
      |                          ~^~~~~~~~~~~

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