답안 #109373

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
109373	2019-05-06T09:53:44 Z	b2563125	Boat (APIO16_boat)	C++14	100 / 100	1903 ms	7112 KB

boat

#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
#define int long long
#define vel vector<long long>
#define V vector
#define ll long long
#define rep(i,n) for(int i=0;i<n;i++)
int pr = 1000000007;
void uni(vel &a) {
	vel ans(1, a[0]);
	int n = a.size();
	rep(i, n - 1) { if (a[i + 1] != a[i]) { ans.push_back(a[i + 1]); } }
	a = ans;
}
int rui(int a, int n) {
	if (n == 0) { return 1; }
	int back = rui(a, n / 2);
	back *= back; back %= pr;
	if (n % 2 == 0) { return back; }
	return (back*a) % pr;
}
int inv(int a) {
	return rui(a, pr - 2);
}
signed main() {
	ll n; cin >> n;
	vel a(n);
	vel b(n);
	vel all_time(1, 0);
	rep(i, n) {
		cin >> a[i] >> b[i]; b[i]++;
		all_time.push_back(a[i]);
		all_time.push_back(b[i]);
	}
	sort(all_time.begin(), all_time.end());
	uni(all_time);
	int sz = all_time.size();
	vel gap(sz - 1);
	rep(i, sz - 1) { gap[i] = all_time[i + 1] - all_time[i]; }
	vel count(sz - 1);
	rep(i, n) {
		a[i] = lower_bound(all_time.begin(), all_time.end(), a[i]) - all_time.begin();
		b[i] = lower_bound(all_time.begin(), all_time.end(), b[i]) - all_time.begin();
		rep(j, b[i] - a[i]) {
			count[a[i] + j]++;
		}
	}
	V<vel> com(sz - 1);
	rep(i, sz - 1) {
		int ba = 1;
		rep(j, count[i]) {
			ba *= gap[i] - j; ba %= pr;
			ba *= inv(j + 1); ba %= pr;
			com[i].push_back(ba);
		}
	}
	V<V<vel>> dp1(2);
	rep(i, 2) {
		rep(j, sz - 1) {
			dp1[i].push_back(vel(count[j], 0));
		}
	}
	vel now_count(sz - 1, 0);
	rep(i, n) {
		int now = i % 2;
		int nex = (i + 1) % 2;
		dp1[nex] = dp1[now];
		int sum = 1;
		rep(j, a[i]) {
			rep(k, now_count[j]) {
				sum += dp1[now][j][k] * com[j][k];
				sum %= pr;
			}
		}
		for (int j = a[i]; j < b[i]; j++) {
			dp1[nex][j][0] += sum; dp1[nex][j][0] %= pr;
			rep(k, now_count[j]) {
				dp1[nex][j][k + 1] += dp1[now][j][k]; dp1[nex][j][k + 1] %= pr;
				sum += dp1[now][j][k] * com[j][k];
				sum %= pr;
			}
			now_count[j]++;
		}
	}
	ll ans = 0;
	rep(i, sz - 1) {
		rep(k, count[i]) {
			ans += dp1[n % 2][i][k] * com[i][k];
			ans %= pr;
		}
	}
	cout << ans << endl;
	return 0;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	512 KB	Output is correct
2	Correct	9 ms	512 KB	Output is correct
3	Correct	9 ms	512 KB	Output is correct
4	Correct	11 ms	512 KB	Output is correct
5	Correct	10 ms	512 KB	Output is correct
6	Correct	10 ms	512 KB	Output is correct
7	Correct	12 ms	512 KB	Output is correct
8	Correct	10 ms	512 KB	Output is correct
9	Correct	10 ms	512 KB	Output is correct
10	Correct	9 ms	512 KB	Output is correct
11	Correct	9 ms	512 KB	Output is correct
12	Correct	9 ms	512 KB	Output is correct
13	Correct	10 ms	512 KB	Output is correct
14	Correct	9 ms	512 KB	Output is correct
15	Correct	9 ms	512 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	512 KB	Output is correct
2	Correct	9 ms	512 KB	Output is correct
3	Correct	9 ms	512 KB	Output is correct
4	Correct	11 ms	512 KB	Output is correct
5	Correct	10 ms	512 KB	Output is correct
6	Correct	10 ms	512 KB	Output is correct
7	Correct	12 ms	512 KB	Output is correct
8	Correct	10 ms	512 KB	Output is correct
9	Correct	10 ms	512 KB	Output is correct
10	Correct	9 ms	512 KB	Output is correct
11	Correct	9 ms	512 KB	Output is correct
12	Correct	9 ms	512 KB	Output is correct
13	Correct	10 ms	512 KB	Output is correct
14	Correct	9 ms	512 KB	Output is correct
15	Correct	9 ms	512 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	823 ms	4496 KB	Output is correct
22	Correct	860 ms	4604 KB	Output is correct
23	Correct	706 ms	4328 KB	Output is correct
24	Correct	688 ms	4548 KB	Output is correct
25	Correct	773 ms	4600 KB	Output is correct
26	Correct	1332 ms	6264 KB	Output is correct
27	Correct	1374 ms	6392 KB	Output is correct
28	Correct	1505 ms	6264 KB	Output is correct
29	Correct	1429 ms	6136 KB	Output is correct
30	Correct	14 ms	512 KB	Output is correct
31	Correct	17 ms	512 KB	Output is correct
32	Correct	14 ms	512 KB	Output is correct
33	Correct	18 ms	512 KB	Output is correct
34	Correct	13 ms	512 KB	Output is correct
35	Correct	13 ms	512 KB	Output is correct
36	Correct	12 ms	512 KB	Output is correct
37	Correct	12 ms	512 KB	Output is correct
38	Correct	13 ms	512 KB	Output is correct

Subtask #3
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	512 KB	Output is correct
2	Correct	11 ms	512 KB	Output is correct
3	Correct	14 ms	512 KB	Output is correct
4	Correct	15 ms	512 KB	Output is correct
5	Correct	15 ms	512 KB	Output is correct
6	Correct	22 ms	640 KB	Output is correct
7	Correct	22 ms	640 KB	Output is correct
8	Correct	24 ms	768 KB	Output is correct
9	Correct	22 ms	612 KB	Output is correct
10	Correct	27 ms	640 KB	Output is correct
11	Correct	16 ms	512 KB	Output is correct
12	Correct	15 ms	512 KB	Output is correct
13	Correct	16 ms	512 KB	Output is correct
14	Correct	14 ms	512 KB	Output is correct
15	Correct	15 ms	512 KB	Output is correct
16	Correct	9 ms	384 KB	Output is correct
17	Correct	9 ms	384 KB	Output is correct
18	Correct	10 ms	512 KB	Output is correct
19	Correct	10 ms	512 KB	Output is correct
20	Correct	10 ms	512 KB	Output is correct

Subtask #4
42.0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	512 KB	Output is correct
2	Correct	9 ms	512 KB	Output is correct
3	Correct	9 ms	512 KB	Output is correct
4	Correct	11 ms	512 KB	Output is correct
5	Correct	10 ms	512 KB	Output is correct
6	Correct	10 ms	512 KB	Output is correct
7	Correct	12 ms	512 KB	Output is correct
8	Correct	10 ms	512 KB	Output is correct
9	Correct	10 ms	512 KB	Output is correct
10	Correct	9 ms	512 KB	Output is correct
11	Correct	9 ms	512 KB	Output is correct
12	Correct	9 ms	512 KB	Output is correct
13	Correct	10 ms	512 KB	Output is correct
14	Correct	9 ms	512 KB	Output is correct
15	Correct	9 ms	512 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	823 ms	4496 KB	Output is correct
22	Correct	860 ms	4604 KB	Output is correct
23	Correct	706 ms	4328 KB	Output is correct
24	Correct	688 ms	4548 KB	Output is correct
25	Correct	773 ms	4600 KB	Output is correct
26	Correct	1332 ms	6264 KB	Output is correct
27	Correct	1374 ms	6392 KB	Output is correct
28	Correct	1505 ms	6264 KB	Output is correct
29	Correct	1429 ms	6136 KB	Output is correct
30	Correct	14 ms	512 KB	Output is correct
31	Correct	17 ms	512 KB	Output is correct
32	Correct	14 ms	512 KB	Output is correct
33	Correct	18 ms	512 KB	Output is correct
34	Correct	13 ms	512 KB	Output is correct
35	Correct	13 ms	512 KB	Output is correct
36	Correct	12 ms	512 KB	Output is correct
37	Correct	12 ms	512 KB	Output is correct
38	Correct	13 ms	512 KB	Output is correct
39	Correct	16 ms	512 KB	Output is correct
40	Correct	11 ms	512 KB	Output is correct
41	Correct	14 ms	512 KB	Output is correct
42	Correct	15 ms	512 KB	Output is correct
43	Correct	15 ms	512 KB	Output is correct
44	Correct	22 ms	640 KB	Output is correct
45	Correct	22 ms	640 KB	Output is correct
46	Correct	24 ms	768 KB	Output is correct
47	Correct	22 ms	612 KB	Output is correct
48	Correct	27 ms	640 KB	Output is correct
49	Correct	16 ms	512 KB	Output is correct
50	Correct	15 ms	512 KB	Output is correct
51	Correct	16 ms	512 KB	Output is correct
52	Correct	14 ms	512 KB	Output is correct
53	Correct	15 ms	512 KB	Output is correct
54	Correct	9 ms	384 KB	Output is correct
55	Correct	9 ms	384 KB	Output is correct
56	Correct	10 ms	512 KB	Output is correct
57	Correct	10 ms	512 KB	Output is correct
58	Correct	10 ms	512 KB	Output is correct
59	Correct	913 ms	4988 KB	Output is correct
60	Correct	804 ms	4600 KB	Output is correct
61	Correct	796 ms	4600 KB	Output is correct
62	Correct	979 ms	5236 KB	Output is correct
63	Correct	889 ms	4856 KB	Output is correct
64	Correct	1903 ms	7032 KB	Output is correct
65	Correct	1788 ms	7032 KB	Output is correct
66	Correct	1817 ms	7112 KB	Output is correct
67	Correct	1818 ms	7032 KB	Output is correct
68	Correct	1759 ms	7036 KB	Output is correct
69	Correct	973 ms	4604 KB	Output is correct
70	Correct	1055 ms	4604 KB	Output is correct
71	Correct	1057 ms	4728 KB	Output is correct
72	Correct	1089 ms	4728 KB	Output is correct
73	Correct	1096 ms	4600 KB	Output is correct
74	Correct	163 ms	1144 KB	Output is correct
75	Correct	160 ms	1148 KB	Output is correct
76	Correct	174 ms	1144 KB	Output is correct
77	Correct	159 ms	1144 KB	Output is correct
78	Correct	172 ms	1280 KB	Output is correct

답안 #109373

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 27.0 / 27.0

Subtask #4 42.0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
27.0 / 27.0

Subtask #4
42.0 / 42.0