oj.uz

Submission #210194

# Submission time Handle Problem Language Result Execution time Memory
210194 2020-03-16T19:42:30 Z hanagasumi Long Distance Coach (JOI17_coach) C++17
71 / 100
 2000 ms 147032 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 << 45);
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);
	auto t1 = clock();
	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());
	vector<int> have;
	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;
		have.pb(d[i]);
	}

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

	for (int i = 1; i < n; i++) {
		int driver = s[i] / T * T;
		int minn = lower_bound(have.begin(), have.end(), max(0LL, s[i - 1] - driver)) - have.begin();
		int lst = upper_bound(have.begin(), have.end(), s[i] - driver) - have.begin() - 1;
		if(lst < minn) 
			continue;
		can[lst].pb({s[i], minn});

		// 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});
	}

	if((clock() - t1) * 1.0 / CLOCKS_PER_SEC >= 0.3) 
		return -1;

	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 29048 KB Output is correct
2 Correct 29 ms 29048 KB Output is correct
3 Correct 29 ms 29048 KB Output is correct
4 Correct 28 ms 29048 KB Output is correct
5 Correct 29 ms 29176 KB Output is correct
6 Correct 29 ms 29176 KB Output is correct
7 Correct 29 ms 29304 KB Output is correct
8 Correct 30 ms 29304 KB Output is correct
9 Correct 29 ms 29304 KB Output is correct
10 Correct 28 ms 29304 KB Output is correct
11 Correct 29 ms 29304 KB Output is correct
12 Correct 28 ms 29176 KB Output is correct
13 Correct 30 ms 29048 KB Output is correct
14 Correct 29 ms 29048 KB Output is correct
15 Correct 28 ms 29304 KB Output is correct
16 Correct 32 ms 29176 KB Output is correct
17 Correct 28 ms 29176 KB Output is correct
18 Correct 29 ms 29176 KB Output is correct
19 Correct 30 ms 29352 KB Output is correct
20 Correct 29 ms 29304 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29304 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29048 KB Output is correct
2 Correct 29 ms 29048 KB Output is correct
3 Correct 29 ms 29048 KB Output is correct
4 Correct 28 ms 29048 KB Output is correct
5 Correct 29 ms 29176 KB Output is correct
6 Correct 29 ms 29176 KB Output is correct
7 Correct 29 ms 29304 KB Output is correct
8 Correct 30 ms 29304 KB Output is correct
9 Correct 29 ms 29304 KB Output is correct
10 Correct 28 ms 29304 KB Output is correct
11 Correct 29 ms 29304 KB Output is correct
12 Correct 28 ms 29176 KB Output is correct
13 Correct 30 ms 29048 KB Output is correct
14 Correct 29 ms 29048 KB Output is correct
15 Correct 28 ms 29304 KB Output is correct
16 Correct 32 ms 29176 KB Output is correct
17 Correct 28 ms 29176 KB Output is correct
18 Correct 29 ms 29176 KB Output is correct
19 Correct 30 ms 29352 KB Output is correct
20 Correct 29 ms 29304 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29304 KB Output is correct
23 Correct 30 ms 29944 KB Output is correct
24 Correct 31 ms 30200 KB Output is correct
25 Correct 30 ms 29848 KB Output is correct
26 Correct 30 ms 30460 KB Output is correct
27 Correct 31 ms 30456 KB Output is correct
28 Correct 30 ms 29944 KB Output is correct
29 Correct 30 ms 29604 KB Output is correct
30 Correct 31 ms 29564 KB Output is correct
31 Correct 31 ms 31224 KB Output is correct
32 Correct 29 ms 29560 KB Output is correct
33 Correct 30 ms 30584 KB Output is correct
34 Correct 30 ms 30200 KB Output is correct
35 Correct 30 ms 30076 KB Output is correct
36 Correct 30 ms 29688 KB Output is correct
37 Correct 30 ms 29816 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29048 KB Output is correct
2 Correct 29 ms 29048 KB Output is correct
3 Correct 29 ms 29048 KB Output is correct
4 Correct 28 ms 29048 KB Output is correct
5 Correct 29 ms 29176 KB Output is correct
6 Correct 29 ms 29176 KB Output is correct
7 Correct 29 ms 29304 KB Output is correct
8 Correct 30 ms 29304 KB Output is correct
9 Correct 29 ms 29304 KB Output is correct
10 Correct 28 ms 29304 KB Output is correct
11 Correct 29 ms 29304 KB Output is correct
12 Correct 28 ms 29176 KB Output is correct
13 Correct 30 ms 29048 KB Output is correct
14 Correct 29 ms 29048 KB Output is correct
15 Correct 28 ms 29304 KB Output is correct
16 Correct 32 ms 29176 KB Output is correct
17 Correct 28 ms 29176 KB Output is correct
18 Correct 29 ms 29176 KB Output is correct
19 Correct 30 ms 29352 KB Output is correct
20 Correct 29 ms 29304 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29304 KB Output is correct
23 Correct 30 ms 29944 KB Output is correct
24 Correct 31 ms 30200 KB Output is correct
25 Correct 30 ms 29848 KB Output is correct
26 Correct 30 ms 30460 KB Output is correct
27 Correct 31 ms 30456 KB Output is correct
28 Correct 30 ms 29944 KB Output is correct
29 Correct 30 ms 29604 KB Output is correct
30 Correct 31 ms 29564 KB Output is correct
31 Correct 31 ms 31224 KB Output is correct
32 Correct 29 ms 29560 KB Output is correct
33 Correct 30 ms 30584 KB Output is correct
34 Correct 30 ms 30200 KB Output is correct
35 Correct 30 ms 30076 KB Output is correct
36 Correct 30 ms 29688 KB Output is correct
37 Correct 30 ms 29816 KB Output is correct
38 Correct 111 ms 48504 KB Output is correct
39 Correct 110 ms 47356 KB Output is correct
40 Correct 146 ms 45304 KB Output is correct
41 Correct 111 ms 45308 KB Output is correct
42 Correct 116 ms 45048 KB Output is correct
43 Correct 103 ms 45436 KB Output is correct
44 Correct 141 ms 46712 KB Output is correct
45 Correct 116 ms 43644 KB Output is correct
46 Correct 138 ms 67196 KB Output is correct
47 Correct 110 ms 40824 KB Output is correct
48 Correct 138 ms 48996 KB Output is correct
49 Correct 61 ms 50968 KB Output is correct
50 Correct 109 ms 48248 KB Output is correct
51 Correct 109 ms 47996 KB Output is correct

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 29048 KB Output is correct
2 Correct 29 ms 29048 KB Output is correct
3 Correct 29 ms 29048 KB Output is correct
4 Correct 28 ms 29048 KB Output is correct
5 Correct 29 ms 29176 KB Output is correct
6 Correct 29 ms 29176 KB Output is correct
7 Correct 29 ms 29304 KB Output is correct
8 Correct 30 ms 29304 KB Output is correct
9 Correct 29 ms 29304 KB Output is correct
10 Correct 28 ms 29304 KB Output is correct
11 Correct 29 ms 29304 KB Output is correct
12 Correct 28 ms 29176 KB Output is correct
13 Correct 30 ms 29048 KB Output is correct
14 Correct 29 ms 29048 KB Output is correct
15 Correct 28 ms 29304 KB Output is correct
16 Correct 32 ms 29176 KB Output is correct
17 Correct 28 ms 29176 KB Output is correct
18 Correct 29 ms 29176 KB Output is correct
19 Correct 30 ms 29352 KB Output is correct
20 Correct 29 ms 29304 KB Output is correct
21 Correct 29 ms 29304 KB Output is correct
22 Correct 30 ms 29304 KB Output is correct
23 Correct 30 ms 29944 KB Output is correct
24 Correct 31 ms 30200 KB Output is correct
25 Correct 30 ms 29848 KB Output is correct
26 Correct 30 ms 30460 KB Output is correct
27 Correct 31 ms 30456 KB Output is correct
28 Correct 30 ms 29944 KB Output is correct
29 Correct 30 ms 29604 KB Output is correct
30 Correct 31 ms 29564 KB Output is correct
31 Correct 31 ms 31224 KB Output is correct
32 Correct 29 ms 29560 KB Output is correct
33 Correct 30 ms 30584 KB Output is correct
34 Correct 30 ms 30200 KB Output is correct
35 Correct 30 ms 30076 KB Output is correct
36 Correct 30 ms 29688 KB Output is correct
37 Correct 30 ms 29816 KB Output is correct
38 Correct 111 ms 48504 KB Output is correct
39 Correct 110 ms 47356 KB Output is correct
40 Correct 146 ms 45304 KB Output is correct
41 Correct 111 ms 45308 KB Output is correct
42 Correct 116 ms 45048 KB Output is correct
43 Correct 103 ms 45436 KB Output is correct
44 Correct 141 ms 46712 KB Output is correct
45 Correct 116 ms 43644 KB Output is correct
46 Correct 138 ms 67196 KB Output is correct
47 Correct 110 ms 40824 KB Output is correct
48 Correct 138 ms 48996 KB Output is correct
49 Correct 61 ms 50968 KB Output is correct
50 Correct 109 ms 48248 KB Output is correct
51 Correct 109 ms 47996 KB Output is correct
52 Execution timed out 2109 ms 147032 KB Time limit exceeded
53 Halted 0 ms 0 KB -