답안 #200834

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
200834	2020-02-08T09:24:43 Z	maruii	Long Distance Coach (JOI17_coach)	C++14	100 / 100	262 ms	134648 KB

coach

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<ll, ll>;
#define ff first
#define ss second

int N, M;
struct CHT {
	struct Node {
		pii L;
		int l, r;
		Node() : L(pii(0, 1e18)), l(-1), r(-1) {}
	} A[5000005];
	ll f(pii L, int x) { return L.ff * x + L.ss; }
	int cnt;
	void update(int nn, int s, int e, pii L2) {
		pii &L1 = A[nn].L;
		if (f(L1, s) > f(L2, s)) swap(L1, L2);
		if (f(L1, e) <= f(L2, e)) return;
		int m = s + e >> 1;
		if (f(L1, m) > f(L2, m)) {
			swap(L1, L2);
			if (A[nn].l < 0) A[nn].l = ++cnt, A[cnt].L = L1;
			update(A[nn].l, s, m, L2);
		}
		else {
			if (A[nn].r < 0) A[nn].r = ++cnt, A[cnt].L = L1;
			update(A[nn].r, m + 1, e, L2);
		}
	}
	void update(ll a, ll b) { update(0, 0, M, pii(a, b)); }
	ll query(int nn, int s, int e, int x) {
		if (nn < 0 || s > x || e < x) return 1e18;
		ll ret = f(A[nn].L, x);
		int m = s + e >> 1;
		return min({ret, query(A[nn].l, s, m, x), query(A[nn].r, m + 1, e, x)});
	}
	ll query(int x) { return query(0, 0, M, x); }
} cht;
ll X, T, W;
pii R[200005], P[200005];
ll D[200005], H[200005], S[200005];
int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> X >> N >> M >> W >> T;
	for (int i = 0; i < N; ++i) {
		ll x; cin >> x;
		R[i] = {x % T, x / T};
	}
	for (int i = 1; i <= M; ++i) cin >> P[i].ff >> P[i].ss;
	R[N] = {X % T, X / T};
	sort(R, R + N + 1);
	sort(P + 1, P + M + 1);
	for (int i = 1; i <= M; ++i) {
		S[i] = S[i - 1] + P[i].ss;
		H[i] = X / T + (X % T >= P[i].ff);
	}
	H[0] = X / T + 1;
	for (int i = M, j = N; i; --i) {
		while (j >= 0 && R[j].ff > P[i].ff) {
			cht.update(-W * R[j].ss, D[i + 1] + S[i] + W * i * R[j].ss);
			--j;
		}
		D[i] = min(cht.query(i - 1) - S[i - 1], D[i + 1] + H[i] * W);
	}
	cout << D[1] + H[0] * W;
	return 0;
}

Compilation message

coach.cpp: In member function 'void CHT::update(int, int, int, pii)':
coach.cpp:21:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s + e >> 1;
           ~~^~~
coach.cpp: In member function 'll CHT::query(int, int, int, int)':
coach.cpp:36:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s + e >> 1;
           ~~^~~

Subtask #1

16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	117752 KB	Output is correct
2	Correct	70 ms	117880 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	69 ms	117752 KB	Output is correct
5	Correct	71 ms	117752 KB	Output is correct
6	Correct	68 ms	117752 KB	Output is correct
7	Correct	72 ms	117752 KB	Output is correct
8	Correct	71 ms	117752 KB	Output is correct
9	Correct	73 ms	117800 KB	Output is correct
10	Correct	72 ms	117752 KB	Output is correct
11	Correct	69 ms	117752 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117752 KB	Output is correct
14	Correct	71 ms	117752 KB	Output is correct
15	Correct	70 ms	117752 KB	Output is correct
16	Correct	70 ms	117752 KB	Output is correct
17	Correct	78 ms	117752 KB	Output is correct
18	Correct	68 ms	117880 KB	Output is correct
19	Correct	71 ms	117752 KB	Output is correct
20	Correct	71 ms	117752 KB	Output is correct
21	Correct	69 ms	117752 KB	Output is correct
22	Correct	70 ms	117756 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	117752 KB	Output is correct
2	Correct	70 ms	117880 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	69 ms	117752 KB	Output is correct
5	Correct	71 ms	117752 KB	Output is correct
6	Correct	68 ms	117752 KB	Output is correct
7	Correct	72 ms	117752 KB	Output is correct
8	Correct	71 ms	117752 KB	Output is correct
9	Correct	73 ms	117800 KB	Output is correct
10	Correct	72 ms	117752 KB	Output is correct
11	Correct	69 ms	117752 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117752 KB	Output is correct
14	Correct	71 ms	117752 KB	Output is correct
15	Correct	70 ms	117752 KB	Output is correct
16	Correct	70 ms	117752 KB	Output is correct
17	Correct	78 ms	117752 KB	Output is correct
18	Correct	68 ms	117880 KB	Output is correct
19	Correct	71 ms	117752 KB	Output is correct
20	Correct	71 ms	117752 KB	Output is correct
21	Correct	69 ms	117752 KB	Output is correct
22	Correct	70 ms	117756 KB	Output is correct
23	Correct	68 ms	117752 KB	Output is correct
24	Correct	70 ms	117752 KB	Output is correct
25	Correct	71 ms	117752 KB	Output is correct
26	Correct	70 ms	117752 KB	Output is correct
27	Correct	69 ms	117752 KB	Output is correct
28	Correct	73 ms	117756 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	67 ms	117752 KB	Output is correct
31	Correct	68 ms	117752 KB	Output is correct
32	Correct	68 ms	117752 KB	Output is correct
33	Correct	69 ms	117752 KB	Output is correct
34	Correct	79 ms	117752 KB	Output is correct
35	Correct	65 ms	117752 KB	Output is correct
36	Correct	66 ms	117752 KB	Output is correct
37	Correct	72 ms	117880 KB	Output is correct

Subtask #3

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	117752 KB	Output is correct
2	Correct	70 ms	117880 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	69 ms	117752 KB	Output is correct
5	Correct	71 ms	117752 KB	Output is correct
6	Correct	68 ms	117752 KB	Output is correct
7	Correct	72 ms	117752 KB	Output is correct
8	Correct	71 ms	117752 KB	Output is correct
9	Correct	73 ms	117800 KB	Output is correct
10	Correct	72 ms	117752 KB	Output is correct
11	Correct	69 ms	117752 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117752 KB	Output is correct
14	Correct	71 ms	117752 KB	Output is correct
15	Correct	70 ms	117752 KB	Output is correct
16	Correct	70 ms	117752 KB	Output is correct
17	Correct	78 ms	117752 KB	Output is correct
18	Correct	68 ms	117880 KB	Output is correct
19	Correct	71 ms	117752 KB	Output is correct
20	Correct	71 ms	117752 KB	Output is correct
21	Correct	69 ms	117752 KB	Output is correct
22	Correct	70 ms	117756 KB	Output is correct
23	Correct	68 ms	117752 KB	Output is correct
24	Correct	70 ms	117752 KB	Output is correct
25	Correct	71 ms	117752 KB	Output is correct
26	Correct	70 ms	117752 KB	Output is correct
27	Correct	69 ms	117752 KB	Output is correct
28	Correct	73 ms	117756 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	67 ms	117752 KB	Output is correct
31	Correct	68 ms	117752 KB	Output is correct
32	Correct	68 ms	117752 KB	Output is correct
33	Correct	69 ms	117752 KB	Output is correct
34	Correct	79 ms	117752 KB	Output is correct
35	Correct	65 ms	117752 KB	Output is correct
36	Correct	66 ms	117752 KB	Output is correct
37	Correct	72 ms	117880 KB	Output is correct
38	Correct	74 ms	117884 KB	Output is correct
39	Correct	70 ms	117880 KB	Output is correct
40	Correct	73 ms	117880 KB	Output is correct
41	Correct	71 ms	117880 KB	Output is correct
42	Correct	72 ms	117880 KB	Output is correct
43	Correct	67 ms	117884 KB	Output is correct
44	Correct	70 ms	117880 KB	Output is correct
45	Correct	69 ms	117880 KB	Output is correct
46	Correct	68 ms	117880 KB	Output is correct
47	Correct	69 ms	117880 KB	Output is correct
48	Correct	71 ms	117880 KB	Output is correct
49	Correct	70 ms	117880 KB	Output is correct
50	Correct	72 ms	117884 KB	Output is correct
51	Correct	70 ms	117880 KB	Output is correct

Subtask #4

29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	117752 KB	Output is correct
2	Correct	70 ms	117880 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	69 ms	117752 KB	Output is correct
5	Correct	71 ms	117752 KB	Output is correct
6	Correct	68 ms	117752 KB	Output is correct
7	Correct	72 ms	117752 KB	Output is correct
8	Correct	71 ms	117752 KB	Output is correct
9	Correct	73 ms	117800 KB	Output is correct
10	Correct	72 ms	117752 KB	Output is correct
11	Correct	69 ms	117752 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117752 KB	Output is correct
14	Correct	71 ms	117752 KB	Output is correct
15	Correct	70 ms	117752 KB	Output is correct
16	Correct	70 ms	117752 KB	Output is correct
17	Correct	78 ms	117752 KB	Output is correct
18	Correct	68 ms	117880 KB	Output is correct
19	Correct	71 ms	117752 KB	Output is correct
20	Correct	71 ms	117752 KB	Output is correct
21	Correct	69 ms	117752 KB	Output is correct
22	Correct	70 ms	117756 KB	Output is correct
23	Correct	68 ms	117752 KB	Output is correct
24	Correct	70 ms	117752 KB	Output is correct
25	Correct	71 ms	117752 KB	Output is correct
26	Correct	70 ms	117752 KB	Output is correct
27	Correct	69 ms	117752 KB	Output is correct
28	Correct	73 ms	117756 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	67 ms	117752 KB	Output is correct
31	Correct	68 ms	117752 KB	Output is correct
32	Correct	68 ms	117752 KB	Output is correct
33	Correct	69 ms	117752 KB	Output is correct
34	Correct	79 ms	117752 KB	Output is correct
35	Correct	65 ms	117752 KB	Output is correct
36	Correct	66 ms	117752 KB	Output is correct
37	Correct	72 ms	117880 KB	Output is correct
38	Correct	74 ms	117884 KB	Output is correct
39	Correct	70 ms	117880 KB	Output is correct
40	Correct	73 ms	117880 KB	Output is correct
41	Correct	71 ms	117880 KB	Output is correct
42	Correct	72 ms	117880 KB	Output is correct
43	Correct	67 ms	117884 KB	Output is correct
44	Correct	70 ms	117880 KB	Output is correct
45	Correct	69 ms	117880 KB	Output is correct
46	Correct	68 ms	117880 KB	Output is correct
47	Correct	69 ms	117880 KB	Output is correct
48	Correct	71 ms	117880 KB	Output is correct
49	Correct	70 ms	117880 KB	Output is correct
50	Correct	72 ms	117884 KB	Output is correct
51	Correct	70 ms	117880 KB	Output is correct
52	Correct	255 ms	128692 KB	Output is correct
53	Correct	225 ms	128760 KB	Output is correct
54	Correct	216 ms	128864 KB	Output is correct
55	Correct	203 ms	129056 KB	Output is correct
56	Correct	209 ms	134264 KB	Output is correct
57	Correct	213 ms	134008 KB	Output is correct
58	Correct	207 ms	134392 KB	Output is correct
59	Correct	209 ms	133752 KB	Output is correct
60	Correct	203 ms	133564 KB	Output is correct
61	Correct	202 ms	133752 KB	Output is correct
62	Correct	208 ms	133948 KB	Output is correct
63	Correct	196 ms	132728 KB	Output is correct
64	Correct	167 ms	134648 KB	Output is correct
65	Correct	231 ms	134648 KB	Output is correct
66	Correct	262 ms	134520 KB	Output is correct
67	Correct	223 ms	134416 KB	Output is correct
68	Correct	225 ms	134520 KB	Output is correct
69	Correct	245 ms	134264 KB	Output is correct
70	Correct	241 ms	134264 KB	Output is correct
71	Correct	242 ms	134244 KB	Output is correct
72	Correct	241 ms	134244 KB	Output is correct
73	Correct	243 ms	134264 KB	Output is correct
74	Correct	233 ms	134264 KB	Output is correct
75	Correct	238 ms	134392 KB	Output is correct
76	Correct	242 ms	134648 KB	Output is correct
77	Correct	201 ms	134136 KB	Output is correct
78	Correct	202 ms	134520 KB	Output is correct
79	Correct	235 ms	133880 KB	Output is correct
80	Correct	240 ms	133752 KB	Output is correct