답안 #207017

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
207017	2020-03-06T05:29:46 Z	maruii	Long Distance Coach (JOI17_coach)	C++14	100 / 100	275 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 = L2;
			update(A[nn].l, s, m, L2);
		}
		else {
			if (A[nn].r < 0) A[nn].r = ++cnt, A[cnt].L = L2;
			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	75 ms	117752 KB	Output is correct
2	Correct	68 ms	117752 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	70 ms	117752 KB	Output is correct
5	Correct	68 ms	117752 KB	Output is correct
6	Correct	70 ms	117752 KB	Output is correct
7	Correct	66 ms	117752 KB	Output is correct
8	Correct	71 ms	117880 KB	Output is correct
9	Correct	69 ms	117752 KB	Output is correct
10	Correct	68 ms	117740 KB	Output is correct
11	Correct	67 ms	117756 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117800 KB	Output is correct
14	Correct	68 ms	117752 KB	Output is correct
15	Correct	72 ms	117752 KB	Output is correct
16	Correct	69 ms	117752 KB	Output is correct
17	Correct	68 ms	117752 KB	Output is correct
18	Correct	68 ms	117752 KB	Output is correct
19	Correct	72 ms	117880 KB	Output is correct
20	Correct	70 ms	117752 KB	Output is correct
21	Correct	68 ms	117756 KB	Output is correct
22	Correct	70 ms	117752 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	75 ms	117752 KB	Output is correct
2	Correct	68 ms	117752 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	70 ms	117752 KB	Output is correct
5	Correct	68 ms	117752 KB	Output is correct
6	Correct	70 ms	117752 KB	Output is correct
7	Correct	66 ms	117752 KB	Output is correct
8	Correct	71 ms	117880 KB	Output is correct
9	Correct	69 ms	117752 KB	Output is correct
10	Correct	68 ms	117740 KB	Output is correct
11	Correct	67 ms	117756 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117800 KB	Output is correct
14	Correct	68 ms	117752 KB	Output is correct
15	Correct	72 ms	117752 KB	Output is correct
16	Correct	69 ms	117752 KB	Output is correct
17	Correct	68 ms	117752 KB	Output is correct
18	Correct	68 ms	117752 KB	Output is correct
19	Correct	72 ms	117880 KB	Output is correct
20	Correct	70 ms	117752 KB	Output is correct
21	Correct	68 ms	117756 KB	Output is correct
22	Correct	70 ms	117752 KB	Output is correct
23	Correct	67 ms	117752 KB	Output is correct
24	Correct	69 ms	117880 KB	Output is correct
25	Correct	69 ms	117752 KB	Output is correct
26	Correct	69 ms	117760 KB	Output is correct
27	Correct	70 ms	117752 KB	Output is correct
28	Correct	67 ms	117752 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	69 ms	117880 KB	Output is correct
31	Correct	70 ms	117756 KB	Output is correct
32	Correct	72 ms	117752 KB	Output is correct
33	Correct	72 ms	117752 KB	Output is correct
34	Correct	80 ms	117752 KB	Output is correct
35	Correct	74 ms	117880 KB	Output is correct
36	Correct	67 ms	117752 KB	Output is correct
37	Correct	68 ms	117752 KB	Output is correct

Subtask #3

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	75 ms	117752 KB	Output is correct
2	Correct	68 ms	117752 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	70 ms	117752 KB	Output is correct
5	Correct	68 ms	117752 KB	Output is correct
6	Correct	70 ms	117752 KB	Output is correct
7	Correct	66 ms	117752 KB	Output is correct
8	Correct	71 ms	117880 KB	Output is correct
9	Correct	69 ms	117752 KB	Output is correct
10	Correct	68 ms	117740 KB	Output is correct
11	Correct	67 ms	117756 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117800 KB	Output is correct
14	Correct	68 ms	117752 KB	Output is correct
15	Correct	72 ms	117752 KB	Output is correct
16	Correct	69 ms	117752 KB	Output is correct
17	Correct	68 ms	117752 KB	Output is correct
18	Correct	68 ms	117752 KB	Output is correct
19	Correct	72 ms	117880 KB	Output is correct
20	Correct	70 ms	117752 KB	Output is correct
21	Correct	68 ms	117756 KB	Output is correct
22	Correct	70 ms	117752 KB	Output is correct
23	Correct	67 ms	117752 KB	Output is correct
24	Correct	69 ms	117880 KB	Output is correct
25	Correct	69 ms	117752 KB	Output is correct
26	Correct	69 ms	117760 KB	Output is correct
27	Correct	70 ms	117752 KB	Output is correct
28	Correct	67 ms	117752 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	69 ms	117880 KB	Output is correct
31	Correct	70 ms	117756 KB	Output is correct
32	Correct	72 ms	117752 KB	Output is correct
33	Correct	72 ms	117752 KB	Output is correct
34	Correct	80 ms	117752 KB	Output is correct
35	Correct	74 ms	117880 KB	Output is correct
36	Correct	67 ms	117752 KB	Output is correct
37	Correct	68 ms	117752 KB	Output is correct
38	Correct	75 ms	117880 KB	Output is correct
39	Correct	75 ms	117880 KB	Output is correct
40	Correct	72 ms	117880 KB	Output is correct
41	Correct	72 ms	117880 KB	Output is correct
42	Correct	69 ms	117880 KB	Output is correct
43	Correct	73 ms	117880 KB	Output is correct
44	Correct	76 ms	118008 KB	Output is correct
45	Correct	77 ms	118008 KB	Output is correct
46	Correct	72 ms	117880 KB	Output is correct
47	Correct	71 ms	117884 KB	Output is correct
48	Correct	69 ms	117872 KB	Output is correct
49	Correct	72 ms	117880 KB	Output is correct
50	Correct	73 ms	117984 KB	Output is correct
51	Correct	69 ms	117880 KB	Output is correct

Subtask #4

29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	75 ms	117752 KB	Output is correct
2	Correct	68 ms	117752 KB	Output is correct
3	Correct	70 ms	117752 KB	Output is correct
4	Correct	70 ms	117752 KB	Output is correct
5	Correct	68 ms	117752 KB	Output is correct
6	Correct	70 ms	117752 KB	Output is correct
7	Correct	66 ms	117752 KB	Output is correct
8	Correct	71 ms	117880 KB	Output is correct
9	Correct	69 ms	117752 KB	Output is correct
10	Correct	68 ms	117740 KB	Output is correct
11	Correct	67 ms	117756 KB	Output is correct
12	Correct	70 ms	117752 KB	Output is correct
13	Correct	69 ms	117800 KB	Output is correct
14	Correct	68 ms	117752 KB	Output is correct
15	Correct	72 ms	117752 KB	Output is correct
16	Correct	69 ms	117752 KB	Output is correct
17	Correct	68 ms	117752 KB	Output is correct
18	Correct	68 ms	117752 KB	Output is correct
19	Correct	72 ms	117880 KB	Output is correct
20	Correct	70 ms	117752 KB	Output is correct
21	Correct	68 ms	117756 KB	Output is correct
22	Correct	70 ms	117752 KB	Output is correct
23	Correct	67 ms	117752 KB	Output is correct
24	Correct	69 ms	117880 KB	Output is correct
25	Correct	69 ms	117752 KB	Output is correct
26	Correct	69 ms	117760 KB	Output is correct
27	Correct	70 ms	117752 KB	Output is correct
28	Correct	67 ms	117752 KB	Output is correct
29	Correct	70 ms	117752 KB	Output is correct
30	Correct	69 ms	117880 KB	Output is correct
31	Correct	70 ms	117756 KB	Output is correct
32	Correct	72 ms	117752 KB	Output is correct
33	Correct	72 ms	117752 KB	Output is correct
34	Correct	80 ms	117752 KB	Output is correct
35	Correct	74 ms	117880 KB	Output is correct
36	Correct	67 ms	117752 KB	Output is correct
37	Correct	68 ms	117752 KB	Output is correct
38	Correct	75 ms	117880 KB	Output is correct
39	Correct	75 ms	117880 KB	Output is correct
40	Correct	72 ms	117880 KB	Output is correct
41	Correct	72 ms	117880 KB	Output is correct
42	Correct	69 ms	117880 KB	Output is correct
43	Correct	73 ms	117880 KB	Output is correct
44	Correct	76 ms	118008 KB	Output is correct
45	Correct	77 ms	118008 KB	Output is correct
46	Correct	72 ms	117880 KB	Output is correct
47	Correct	71 ms	117884 KB	Output is correct
48	Correct	69 ms	117872 KB	Output is correct
49	Correct	72 ms	117880 KB	Output is correct
50	Correct	73 ms	117984 KB	Output is correct
51	Correct	69 ms	117880 KB	Output is correct
52	Correct	251 ms	134392 KB	Output is correct
53	Correct	222 ms	134520 KB	Output is correct
54	Correct	214 ms	133624 KB	Output is correct
55	Correct	225 ms	133880 KB	Output is correct
56	Correct	202 ms	134112 KB	Output is correct
57	Correct	210 ms	133880 KB	Output is correct
58	Correct	220 ms	134520 KB	Output is correct
59	Correct	208 ms	133752 KB	Output is correct
60	Correct	209 ms	133752 KB	Output is correct
61	Correct	211 ms	133752 KB	Output is correct
62	Correct	214 ms	133752 KB	Output is correct
63	Correct	210 ms	132728 KB	Output is correct
64	Correct	168 ms	134548 KB	Output is correct
65	Correct	229 ms	134520 KB	Output is correct
66	Correct	217 ms	134520 KB	Output is correct
67	Correct	224 ms	134528 KB	Output is correct
68	Correct	223 ms	134520 KB	Output is correct
69	Correct	240 ms	134332 KB	Output is correct
70	Correct	233 ms	134136 KB	Output is correct
71	Correct	253 ms	134248 KB	Output is correct
72	Correct	275 ms	134264 KB	Output is correct
73	Correct	248 ms	134264 KB	Output is correct
74	Correct	249 ms	134344 KB	Output is correct
75	Correct	241 ms	134392 KB	Output is correct
76	Correct	252 ms	134648 KB	Output is correct
77	Correct	220 ms	134168 KB	Output is correct
78	Correct	213 ms	134396 KB	Output is correct
79	Correct	240 ms	133768 KB	Output is correct
80	Correct	246 ms	133868 KB	Output is correct