oj.uz

Submission #210188

# Submission time Handle Problem Language Result Execution time Memory
210188 2020-03-16T19:34:28 Z hanagasumi Long Distance Coach (JOI17_coach) C++17
46 / 100
 141 ms 66964 KB 
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <deque>
#include <map>
#include <set>
#include <complex>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <chrono>

#define ft first
#define sc second
#define pb push_back
#define len(v) (int)v.size()
#define int ll

using namespace std;
typedef long long ll;
typedef long double ld;

int inf = (1LL << 55);
const int N = (1 << 18);

struct line {	
	int k, b;
	int get(int x) {
		return k * x + b;
	}
	bool operator < (const line& x) const {
		return k < x.k;
	}
};

struct node {
	node* l;
	node* r;
	line now;
	node(node* _l, node* _r, line _now) : l(_l), r(_r), now(_now) {}
};


struct lichao {
	node* v;
	lichao() {
		v = new node(NULL, NULL, {0, inf});
	}
	int get(node* v, int l, int r, int x) {
		int ans = v->now.get(x);
		int m = (l + r) / 2;
		if(m <= x) {
			if(v->r == NULL) 
				return ans;
			else
				return min(ans, get(v->r, m, r, x));
		}
		else {
			if(v->l == NULL) 
				return ans;
			else
				return min(ans, get(v->l, l, m, x));
		}
	}
	void upd(node* v, int l, int r, line val) {
		int m = (l + r) / 2;
		bool lft = val.get(l) < v->now.get(l);
		bool mid = val.get(m) < v->now.get(m);
		if(mid) 
			swap(v->now, val);
		if(r - l == 1) 
			return;
		if(lft == mid) {
			if(v->r == NULL) {
				auto neww = new node(NULL, NULL, {0, inf});
				v->r = neww;
			}
			upd(v->r, m, r, val);
			return;
		}
		else {
			if(v->l == NULL) {
				auto neww = new node(NULL, NULL, {0, inf});
				v->l = neww;
			}
			upd(v->l, l, m, val);
			return;
		}
	}
	int get(int x) {
		return get(v, 0, inf, x);
	}
	void upd(line val) {
		upd(v, 0, inf, val);
	}
};

lichao tree[2 * N];

int get(int v, int l, int r, int vl, int vr, int X) {
	if(r <= vl || vr <= l) 
		return inf;
	if(vl <= l && r <= vr) {
		return tree[v].get(X);
	}
	int m = (l + r) / 2;
	return min(get(v * 2, l, m, vl, vr, X), get(v * 2 + 1, m, r, vl, vr, X));
}

void upd(int v, line val) {
	if(v == 0) 
		return;
	tree[v].upd(val);
	upd(v / 2, val);
	return;
}

signed main() {
	#ifdef PC
		freopen("in.txt", "r", stdin);
		freopen("out.txt", "w", stdout);
	#endif	
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	int x, n, m, w, T;
	cin >> x >> n >> m >> w >> T;
	vector<int> s(n + 1);
	vector<pair<int, int>> p(m);
	vector<int> pref(m + 1, 0);
	vector<int> cnt(m + 1, 0);
	vector<int> d(m + 1, 0);
	s[0] = 0;
	for (int i = 1; i <= n; i++) 
		cin >> s[i];	
	s.pb(x);
	n += 2;
	sort(s.begin(), s.end());
	for (int i = 0; i < m; i++) {
		cin >> p[i].ft >> p[i].sc;
	}
	sort(p.begin(), p.end());
	for (int i = 0; i < m; i++) {
		pref[i + 1] = pref[i] + p[i].sc;
		cnt[i] = (x - p[i].ft) / T + 1;
		d[i] = p[i].ft;
	}

	vector<vector<pair<int, int>>> can(m + 1);

	for (int i = 1; i < n; i++) {
		int driver = s[i] / T * T;
		int lstt = -1, lst = -1;
		for (int j = 0; j < m; j++) {
			int time = s[i] / T * T + d[j];
			if(time > s[i]) 
				time -= T;
			if(time < s[i - 1])
				continue;
			if(time < driver) 
				continue;
			if(time > lstt) {
				lstt = time;
				lst = j;
			}
		}
		if(lstt == -1) 
			continue;
		int minn = lst;
		for (int j = m - 1; j >= 0; j--) {
			int time = s[i] / T * T + d[j];
			if(time > s[i]) 
				time -= T;
			if(time < s[i - 1]) 
				continue;
			if(time < driver) 
				continue;
			minn = min(j, minn);
			// can[lst].pb({s[i], j});
		}
		can[lst].pb({s[i], minn});
	}

	vector<int> dp(m + 1, 0);
	for (int i = 0; i < m; i++) {
		dp[i + 1] = dp[i] + cnt[i] * w;
		upd(N + i, {-i, -pref[i] + dp[i]});
		for (auto x : can[i]) {
			int time = x.ft / T * T + d[i];
			if(time > x.ft) 
				time -= T;
			for (int j = x.sc; j <= i; j++) {
				int time1 = x.ft / T * T + d[j];
				if(time > x.ft) 
					time -= T;
				if(time1 / T * w != time / T * w) 
					return -1;
			}
			
			int X = time / T * w;
			// cout << X << " " << x.ft << " " << x.sc << " " << i << " " << pref[i + 1] + (i + 1) * X + get(1, 0, N, i, i + 1, X) << " " << pref[i + 1] + (i + 1) * X + get(1, 0, N, x.sc, i + 1, X) << endl;
			dp[i + 1] = min(dp[i + 1], pref[i + 1] + (i + 1) * X + get(1, 0, N, x.sc, i + 1, X));
		}
		// cout << i << " " << dp[i + 1] << endl;
	}
	cout << dp[m] + ((x / T + 1) * w) << endl;


	return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29052 KB Output is correct
2 Correct 30 ms 29048 KB Output is correct
3 Correct 29 ms 28920 KB Output is correct
4 Correct 29 ms 29048 KB Output is correct
5 Correct 30 ms 29176 KB Output is correct
6 Correct 30 ms 29176 KB Output is correct
7 Correct 30 ms 29308 KB Output is correct
8 Correct 29 ms 29432 KB Output is correct
9 Correct 31 ms 29432 KB Output is correct
10 Correct 29 ms 29304 KB Output is correct
11 Correct 30 ms 29432 KB Output is correct
12 Correct 29 ms 29304 KB Output is correct
13 Correct 32 ms 29176 KB Output is correct
14 Correct 29 ms 29176 KB Output is correct
15 Correct 30 ms 29432 KB Output is correct
16 Correct 29 ms 29176 KB Output is correct
17 Correct 30 ms 29304 KB Output is correct
18 Correct 30 ms 29304 KB Output is correct
19 Correct 29 ms 29432 KB Output is correct
20 Correct 30 ms 29432 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29436 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29052 KB Output is correct
2 Correct 30 ms 29048 KB Output is correct
3 Correct 29 ms 28920 KB Output is correct
4 Correct 29 ms 29048 KB Output is correct
5 Correct 30 ms 29176 KB Output is correct
6 Correct 30 ms 29176 KB Output is correct
7 Correct 30 ms 29308 KB Output is correct
8 Correct 29 ms 29432 KB Output is correct
9 Correct 31 ms 29432 KB Output is correct
10 Correct 29 ms 29304 KB Output is correct
11 Correct 30 ms 29432 KB Output is correct
12 Correct 29 ms 29304 KB Output is correct
13 Correct 32 ms 29176 KB Output is correct
14 Correct 29 ms 29176 KB Output is correct
15 Correct 30 ms 29432 KB Output is correct
16 Correct 29 ms 29176 KB Output is correct
17 Correct 30 ms 29304 KB Output is correct
18 Correct 30 ms 29304 KB Output is correct
19 Correct 29 ms 29432 KB Output is correct
20 Correct 30 ms 29432 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29436 KB Output is correct
23 Correct 36 ms 30328 KB Output is correct
24 Correct 31 ms 30584 KB Output is correct
25 Correct 30 ms 30072 KB Output is correct
26 Correct 31 ms 30712 KB Output is correct
27 Correct 31 ms 30840 KB Output is correct
28 Correct 31 ms 30328 KB Output is correct
29 Correct 32 ms 30456 KB Output is correct
30 Correct 31 ms 30456 KB Output is correct
31 Correct 32 ms 31864 KB Output is correct
32 Correct 31 ms 29692 KB Output is correct
33 Correct 32 ms 30968 KB Output is correct
34 Correct 30 ms 30456 KB Output is correct
35 Correct 30 ms 30200 KB Output is correct
36 Correct 31 ms 29944 KB Output is correct
37 Correct 30 ms 29944 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29052 KB Output is correct
2 Correct 30 ms 29048 KB Output is correct
3 Correct 29 ms 28920 KB Output is correct
4 Correct 29 ms 29048 KB Output is correct
5 Correct 30 ms 29176 KB Output is correct
6 Correct 30 ms 29176 KB Output is correct
7 Correct 30 ms 29308 KB Output is correct
8 Correct 29 ms 29432 KB Output is correct
9 Correct 31 ms 29432 KB Output is correct
10 Correct 29 ms 29304 KB Output is correct
11 Correct 30 ms 29432 KB Output is correct
12 Correct 29 ms 29304 KB Output is correct
13 Correct 32 ms 29176 KB Output is correct
14 Correct 29 ms 29176 KB Output is correct
15 Correct 30 ms 29432 KB Output is correct
16 Correct 29 ms 29176 KB Output is correct
17 Correct 30 ms 29304 KB Output is correct
18 Correct 30 ms 29304 KB Output is correct
19 Correct 29 ms 29432 KB Output is correct
20 Correct 30 ms 29432 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29436 KB Output is correct
23 Correct 36 ms 30328 KB Output is correct
24 Correct 31 ms 30584 KB Output is correct
25 Correct 30 ms 30072 KB Output is correct
26 Correct 31 ms 30712 KB Output is correct
27 Correct 31 ms 30840 KB Output is correct
28 Correct 31 ms 30328 KB Output is correct
29 Correct 32 ms 30456 KB Output is correct
30 Correct 31 ms 30456 KB Output is correct
31 Correct 32 ms 31864 KB Output is correct
32 Correct 31 ms 29692 KB Output is correct
33 Correct 32 ms 30968 KB Output is correct
34 Correct 30 ms 30456 KB Output is correct
35 Correct 30 ms 30200 KB Output is correct
36 Correct 31 ms 29944 KB Output is correct
37 Correct 30 ms 29944 KB Output is correct
38 Correct 116 ms 65144 KB Output is correct
39 Correct 120 ms 65276 KB Output is correct
40 Incorrect 141 ms 66964 KB Output isn't correct
41 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29052 KB Output is correct
2 Correct 30 ms 29048 KB Output is correct
3 Correct 29 ms 28920 KB Output is correct
4 Correct 29 ms 29048 KB Output is correct
5 Correct 30 ms 29176 KB Output is correct
6 Correct 30 ms 29176 KB Output is correct
7 Correct 30 ms 29308 KB Output is correct
8 Correct 29 ms 29432 KB Output is correct
9 Correct 31 ms 29432 KB Output is correct
10 Correct 29 ms 29304 KB Output is correct
11 Correct 30 ms 29432 KB Output is correct
12 Correct 29 ms 29304 KB Output is correct
13 Correct 32 ms 29176 KB Output is correct
14 Correct 29 ms 29176 KB Output is correct
15 Correct 30 ms 29432 KB Output is correct
16 Correct 29 ms 29176 KB Output is correct
17 Correct 30 ms 29304 KB Output is correct
18 Correct 30 ms 29304 KB Output is correct
19 Correct 29 ms 29432 KB Output is correct
20 Correct 30 ms 29432 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29436 KB Output is correct
23 Correct 36 ms 30328 KB Output is correct
24 Correct 31 ms 30584 KB Output is correct
25 Correct 30 ms 30072 KB Output is correct
26 Correct 31 ms 30712 KB Output is correct
27 Correct 31 ms 30840 KB Output is correct
28 Correct 31 ms 30328 KB Output is correct
29 Correct 32 ms 30456 KB Output is correct
30 Correct 31 ms 30456 KB Output is correct
31 Correct 32 ms 31864 KB Output is correct
32 Correct 31 ms 29692 KB Output is correct
33 Correct 32 ms 30968 KB Output is correct
34 Correct 30 ms 30456 KB Output is correct
35 Correct 30 ms 30200 KB Output is correct
36 Correct 31 ms 29944 KB Output is correct
37 Correct 30 ms 29944 KB Output is correct
38 Correct 116 ms 65144 KB Output is correct
39 Correct 120 ms 65276 KB Output is correct
40 Incorrect 141 ms 66964 KB Output isn't correct
41 Halted 0 ms 0 KB -