답안 #66243 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
66243	2018-08-10T05:31:39 Z	노영훈(#1886)	초음속철도 (OJUZ11_rail)	C++11	45 / 100	395 ms	197952 KB

rail

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int MX=5010, MOD=1e9+7;

int pw(int e){
	if(e==0) return 1;
	ll t=pw(e/2); t=t*t%MOD;
	return (e%2==0 ? t : t*2%MOD);
}

int n, m, lim;
struct rail{
	int s, e;
	void scan(){ cin>>s>>e; }
} R[MX];

vector<int> P[2*MX];
int D[MX][2*MX];
int solve(){
	for(int i=1; i<=n; i++){
		P[R[i].s].push_back(R[i].e);
	}
//	for(int i=1; i<=lim; i++) sort(P[i].begin(), P[i].end());

	D[0][1]=1;

	for(int s=1, pos=0; s<=lim; s++){
		for(int e:P[s]){
			pos++;
			for(int x=1; x<=lim; x++)
				D[pos][x]=D[pos-1][x];
			for(int x=s; x<=lim; x++)
				D[pos][max(x,e)] = (D[pos][max(x,e)] + D[pos-1][x])%MOD;
		}
	}
//	for(int i=1; i<=n; i++, cout<<'\n') for(int j=1; j<=lim; j++) cout<<D[i][j]<<' ';

	return D[n][lim];
}

int main(){
	ios::sync_with_stdio(0); cin.tie(0);
	cin>>m>>n;
	vector<int> X={1,m};
	for(int i=1; i<=n; i++){
		R[i].scan();
		X.push_back(R[i].s);
		X.push_back(R[i].e);
	}
	sort(X.begin(), X.end());
	lim=unique(X.begin(), X.end())-X.begin();
	X.resize(lim);
	for(int i=1; i<=n; i++){
		R[i].s=lower_bound(X.begin(), X.end(), R[i].s)-X.begin()+1;
		R[i].e=lower_bound(X.begin(), X.end(), R[i].e)-X.begin()+1;
	}

	cout<<solve()<<'\n';

	return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	632 KB	Output is correct
2	Correct	2 ms	744 KB	Output is correct
3	Correct	4 ms	808 KB	Output is correct
4	Correct	4 ms	808 KB	Output is correct
5	Correct	3 ms	808 KB	Output is correct
6	Correct	4 ms	808 KB	Output is correct
7	Correct	3 ms	932 KB	Output is correct
8	Correct	3 ms	932 KB	Output is correct
9	Correct	3 ms	932 KB	Output is correct
10	Correct	2 ms	932 KB	Output is correct
11	Correct	3 ms	932 KB	Output is correct
12	Correct	3 ms	932 KB	Output is correct
13	Correct	3 ms	932 KB	Output is correct
14	Correct	3 ms	932 KB	Output is correct
15	Correct	3 ms	932 KB	Output is correct
16	Correct	2 ms	932 KB	Output is correct
17	Correct	2 ms	932 KB	Output is correct
18	Correct	4 ms	932 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	632 KB	Output is correct
2	Correct	2 ms	744 KB	Output is correct
3	Correct	4 ms	808 KB	Output is correct
4	Correct	4 ms	808 KB	Output is correct
5	Correct	3 ms	808 KB	Output is correct
6	Correct	4 ms	808 KB	Output is correct
7	Correct	3 ms	932 KB	Output is correct
8	Correct	3 ms	932 KB	Output is correct
9	Correct	3 ms	932 KB	Output is correct
10	Correct	2 ms	932 KB	Output is correct
11	Correct	3 ms	932 KB	Output is correct
12	Correct	3 ms	932 KB	Output is correct
13	Correct	3 ms	932 KB	Output is correct
14	Correct	3 ms	932 KB	Output is correct
15	Correct	3 ms	932 KB	Output is correct
16	Correct	2 ms	932 KB	Output is correct
17	Correct	2 ms	932 KB	Output is correct
18	Correct	4 ms	932 KB	Output is correct
19	Correct	3 ms	932 KB	Output is correct
20	Correct	2 ms	932 KB	Output is correct
21	Correct	2 ms	932 KB	Output is correct
22	Correct	3 ms	932 KB	Output is correct
23	Correct	3 ms	932 KB	Output is correct
24	Correct	3 ms	932 KB	Output is correct
25	Correct	2 ms	932 KB	Output is correct
26	Correct	3 ms	932 KB	Output is correct
27	Correct	3 ms	932 KB	Output is correct
28	Correct	3 ms	932 KB	Output is correct
29	Correct	3 ms	932 KB	Output is correct
30	Correct	3 ms	932 KB	Output is correct
31	Correct	3 ms	932 KB	Output is correct
32	Correct	2 ms	932 KB	Output is correct
33	Correct	3 ms	932 KB	Output is correct
34	Correct	2 ms	932 KB	Output is correct
35	Correct	4 ms	932 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	932 KB	Output is correct
2	Correct	3 ms	932 KB	Output is correct
3	Correct	2 ms	932 KB	Output is correct
4	Correct	80 ms	47844 KB	Output is correct
5	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
6	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
7	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
8	Correct	2 ms	47844 KB	Output is correct
9	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
10	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
11	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
12	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
13	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
14	Incorrect	4 ms	47844 KB	Output isn't correct
15	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
16	Incorrect	4 ms	47844 KB	Output isn't correct
17	Runtime error	11 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
18	Runtime error	13 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
19	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #4
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	632 KB	Output is correct
2	Correct	2 ms	744 KB	Output is correct
3	Correct	4 ms	808 KB	Output is correct
4	Correct	4 ms	808 KB	Output is correct
5	Correct	3 ms	808 KB	Output is correct
6	Correct	4 ms	808 KB	Output is correct
7	Correct	3 ms	932 KB	Output is correct
8	Correct	3 ms	932 KB	Output is correct
9	Correct	3 ms	932 KB	Output is correct
10	Correct	2 ms	932 KB	Output is correct
11	Correct	3 ms	932 KB	Output is correct
12	Correct	3 ms	932 KB	Output is correct
13	Correct	3 ms	932 KB	Output is correct
14	Correct	3 ms	932 KB	Output is correct
15	Correct	3 ms	932 KB	Output is correct
16	Correct	2 ms	932 KB	Output is correct
17	Correct	2 ms	932 KB	Output is correct
18	Correct	4 ms	932 KB	Output is correct
19	Correct	3 ms	932 KB	Output is correct
20	Correct	2 ms	932 KB	Output is correct
21	Correct	2 ms	932 KB	Output is correct
22	Correct	3 ms	932 KB	Output is correct
23	Correct	3 ms	932 KB	Output is correct
24	Correct	3 ms	932 KB	Output is correct
25	Correct	2 ms	932 KB	Output is correct
26	Correct	3 ms	932 KB	Output is correct
27	Correct	3 ms	932 KB	Output is correct
28	Correct	3 ms	932 KB	Output is correct
29	Correct	3 ms	932 KB	Output is correct
30	Correct	3 ms	932 KB	Output is correct
31	Correct	3 ms	932 KB	Output is correct
32	Correct	2 ms	932 KB	Output is correct
33	Correct	3 ms	932 KB	Output is correct
34	Correct	2 ms	932 KB	Output is correct
35	Correct	4 ms	932 KB	Output is correct
36	Correct	362 ms	197928 KB	Output is correct
37	Correct	261 ms	197928 KB	Output is correct
38	Correct	93 ms	197928 KB	Output is correct
39	Correct	17 ms	197928 KB	Output is correct
40	Correct	140 ms	197928 KB	Output is correct
41	Correct	317 ms	197928 KB	Output is correct
42	Correct	347 ms	197952 KB	Output is correct
43	Correct	2 ms	197952 KB	Output is correct
44	Correct	284 ms	197952 KB	Output is correct
45	Correct	17 ms	197952 KB	Output is correct
46	Correct	222 ms	197952 KB	Output is correct
47	Correct	222 ms	197952 KB	Output is correct
48	Correct	197 ms	197952 KB	Output is correct
49	Correct	29 ms	197952 KB	Output is correct
50	Correct	22 ms	197952 KB	Output is correct
51	Correct	21 ms	197952 KB	Output is correct
52	Correct	21 ms	197952 KB	Output is correct
53	Correct	306 ms	197952 KB	Output is correct
54	Correct	89 ms	197952 KB	Output is correct
55	Correct	395 ms	197952 KB	Output is correct

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	632 KB	Output is correct
2	Correct	2 ms	744 KB	Output is correct
3	Correct	4 ms	808 KB	Output is correct
4	Correct	4 ms	808 KB	Output is correct
5	Correct	3 ms	808 KB	Output is correct
6	Correct	4 ms	808 KB	Output is correct
7	Correct	3 ms	932 KB	Output is correct
8	Correct	3 ms	932 KB	Output is correct
9	Correct	3 ms	932 KB	Output is correct
10	Correct	2 ms	932 KB	Output is correct
11	Correct	3 ms	932 KB	Output is correct
12	Correct	3 ms	932 KB	Output is correct
13	Correct	3 ms	932 KB	Output is correct
14	Correct	3 ms	932 KB	Output is correct
15	Correct	3 ms	932 KB	Output is correct
16	Correct	2 ms	932 KB	Output is correct
17	Correct	2 ms	932 KB	Output is correct
18	Correct	4 ms	932 KB	Output is correct
19	Correct	3 ms	932 KB	Output is correct
20	Correct	2 ms	932 KB	Output is correct
21	Correct	2 ms	932 KB	Output is correct
22	Correct	3 ms	932 KB	Output is correct
23	Correct	3 ms	932 KB	Output is correct
24	Correct	3 ms	932 KB	Output is correct
25	Correct	2 ms	932 KB	Output is correct
26	Correct	3 ms	932 KB	Output is correct
27	Correct	3 ms	932 KB	Output is correct
28	Correct	3 ms	932 KB	Output is correct
29	Correct	3 ms	932 KB	Output is correct
30	Correct	3 ms	932 KB	Output is correct
31	Correct	3 ms	932 KB	Output is correct
32	Correct	2 ms	932 KB	Output is correct
33	Correct	3 ms	932 KB	Output is correct
34	Correct	2 ms	932 KB	Output is correct
35	Correct	4 ms	932 KB	Output is correct
36	Correct	3 ms	932 KB	Output is correct
37	Correct	3 ms	932 KB	Output is correct
38	Correct	2 ms	932 KB	Output is correct
39	Correct	80 ms	47844 KB	Output is correct
40	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
41	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
42	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
43	Correct	2 ms	47844 KB	Output is correct
44	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
45	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
46	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
47	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
48	Runtime error	9 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
49	Incorrect	4 ms	47844 KB	Output isn't correct
50	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
51	Incorrect	4 ms	47844 KB	Output isn't correct
52	Runtime error	11 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
53	Runtime error	13 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
54	Runtime error	10 ms	47844 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
55	Correct	362 ms	197928 KB	Output is correct
56	Correct	261 ms	197928 KB	Output is correct
57	Correct	93 ms	197928 KB	Output is correct
58	Correct	17 ms	197928 KB	Output is correct
59	Correct	140 ms	197928 KB	Output is correct
60	Correct	317 ms	197928 KB	Output is correct
61	Correct	347 ms	197952 KB	Output is correct
62	Correct	2 ms	197952 KB	Output is correct
63	Correct	284 ms	197952 KB	Output is correct
64	Correct	17 ms	197952 KB	Output is correct
65	Correct	222 ms	197952 KB	Output is correct
66	Correct	222 ms	197952 KB	Output is correct
67	Correct	197 ms	197952 KB	Output is correct
68	Correct	29 ms	197952 KB	Output is correct
69	Correct	22 ms	197952 KB	Output is correct
70	Correct	21 ms	197952 KB	Output is correct
71	Correct	21 ms	197952 KB	Output is correct
72	Correct	306 ms	197952 KB	Output is correct
73	Correct	89 ms	197952 KB	Output is correct
74	Correct	395 ms	197952 KB	Output is correct
75	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
76	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
77	Incorrect	46 ms	197952 KB	Output isn't correct
78	Incorrect	4 ms	197952 KB	Output isn't correct
79	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
80	Runtime error	10 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
81	Correct	225 ms	197952 KB	Output is correct
82	Runtime error	10 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
83	Incorrect	4 ms	197952 KB	Output isn't correct
84	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
85	Runtime error	12 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
86	Runtime error	16 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
87	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
88	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
89	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
90	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
91	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
92	Runtime error	10 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
93	Runtime error	11 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
94	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
95	Runtime error	9 ms	197952 KB	Execution killed with signal 11 (could be triggered by violating memory limits)

답안 #66243

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 27.0 / 27.0

Subtask #5 0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
27.0 / 27.0

Subtask #5
0 / 30.0