Submission #362041

#	Time	Username	Problem	Language	Result	Execution time	Memory
362041		HoneyBadger	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	1 ms	620 KiB

semiexpress

#include <iostream>
#include <iomanip>
#include <cstdio>
#include <vector>
#include <bitset>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <algorithm>
#include <random>
#include <cmath>
#include <cassert>
#include <climits>
#include <ctime>
#include <chrono>


/*
#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,tune=native")
*/


#ifdef LOCAL
	#define dbg(x) cout << #x << " : " << x << endl;
#else
	#define dbg(x)
#endif

#define int long long
#define pb push_back
#define ppb pop_back()
#define mp make_pair
#define fi(a, b) for (int i = a; i < b; i++)
#define fj(a, b) for (int j = a; j < b; j++)
#define fk(a, b) for (int k = a; k < b; k++)
#define fi1(a, b) for (int i = a - 1; i >= b; i--)
#define fj1(a, b) for (int j = a - 1; j >= b; j--)
#define fk1(a, b) for (int k = a - 1; k >= b; k--)
#define fx(x, a) for (auto& x : a)
#define rep(i, a, b) for (int i = a; i < b; ++i)
#define rep1(i, a, b) for (int i = a - 1; i >= b; --i)
#define siz(x) (int)x.size()
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()

using namespace std;

template<typename T1, typename T2>inline void mine(T1 &x, const T2 &y) { if (y < x) x = y; }
template<typename T1, typename T2>inline void maxe(T1 &x, const T2 &y) { if (x < y) x = y; }

ostream& operator << (ostream &out, const vector<int> &b) {
	for (auto k : b) out << k << ' ';
	return out;
}

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef char ch;
typedef string str;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
typedef vector<ch> vch;
typedef vector<vch> vvch;
typedef vector<str> vs;



const int MOD = 1000000007;
const int INF = 1000000050;
const long long BIG = (long long)2e18 + 50;
const int MX = 200010;
const double EPS = 1e-9;


mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());


int32_t main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	int n, m, k;
	cin >> n >> m >> k;
	int a, b, c;
	cin >> a >> b >> c;
	int t;
	cin >> t;
	set<int> have;
	vi s(m);
	fx(x, s) {
		cin >> x;
		--x;
		have.insert(x);
	}
	set<pii> kek;
	int ans = (n - 1) * b <= t;
	--ans;
	fi(0, m - 1) {
		if (s[i] * b > t) break;
		int ep = min(s[i + 1], (t - s[i] * b) / a + s[i] + 1);
		ans += ep - s[i];
		if (ep < s[i + 1]) {
			int tl = t - s[i] * b - (ep - s[i]) * c;
			if (tl >= 0) {
				int ep2 = ep + tl / a + 1;
				mine(ep2, s[i + 1]);
				kek.insert({ep2 - ep, ep});
			}
		}
	}

	k -= m;
	while (k-- && kek.size()) {
		auto[delta, x] = *--kek.end();
		kek.erase(--kek.end());
		assert(delta != 0);
		ans += delta;
		int nx = *have.ub(x);
		int pr = *--have.ub(x);
		int ep = x + delta;
		if (ep < nx) {
			int tl = t - pr * b - (ep - pr) * c;
			if (tl >= 0) {
				int ep2 = ep + tl / a + 1;
				mine(ep2, nx);
				kek.insert({ep2 - ep, ep});
			}
		}
	}
	cout << ans << '\n';
}

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