제출 #1213890

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1213890		Hamed_Ghaffari	Semiexpress (JOI17_semiexpress)	C++20	100 / 100	4 ms	1860 KiB

semiexpress

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

const int MXN = 3003;

int n, m, k, A, B, C, S[MXN], arr[MXN*MXN], sz, ans;
ll T;

int32_t main() {
    cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
    cin >> n >> m >> k >> A >> B >> C >> T;
    for(int i=1; i<=m; i++) cin >> S[i];
    S[m+1] = n+1;
    for(int i=1; i<=m; i++) {
        ll cur = 1ll*(S[i]-1)*B;
        if(cur>T) break;
        ll cnt = min((T-cur)/A, 1ll*S[i+1]-S[i]-1);
        int wh = S[i];
        ans += cnt+1;
        for(int j=0; wh+cnt+1<S[i+1] && j<k-m; j++) {
            if(cur + (cnt+1)*C > T) break;
            cur += (cnt+1)*C;
            wh += cnt+1;
            cnt = min((T-cur)/A, 1ll*S[i+1]-wh-1);
            arr[sz++] = cnt+1;
        }
    }
    int cnt = min(k-m, sz);
    nth_element(arr, arr+sz-cnt, arr+sz);
    for(int i=sz-cnt; i<sz; i++) ans += arr[i];
    cout << ans-1 << '\n';
    return 0;
}

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