답안 #20389 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20389	2017-02-10T17:24:56 Z	윤지학(#34, gs13068)	초음속철도 (OJUZ11_rail)	C++	45 / 100	69 ms	12436 KB

rail

#include <cstdio>
#include <algorithm>

using namespace std;

const int o = 1 << 19, p = 1000000007;

pair<int, int> a[200002];
int t[400004];
int d[1 << 20];
int e[1 << 20];

int main() {
	int i, j, k, n, m, r = 0;
	scanf("%d%d", &t[1], &n);
	if (n > 5000) return 0;
	t[0] = 1;
	for (i = 1; i <= n; i++) {
		scanf("%d%d", &t[i << 1], &t[i << 1 | 1]);
		a[i].first = t[i << 1 | 1];
		a[i].second = -t[i << 1];
	}
	sort(a + 1, a + n + 1);
	sort(t, t + n + n + 2);
	m = unique(t, t + n + n + 2) - t;
	d[1] = 1;
	for (i = 1; i <= n; i++) {
		a[i].first = upper_bound(t, t + m, a[i].first) - t;
		a[i].second = upper_bound(t, t + m, -a[i].second) - t;
		k = d[a[i].second];
		if (a[i].first == m) r = (r + k) % p;
		for (j = 0; j < a[i].second; j++) d[j] = (d[j] << 1) % p;
		for (j = a[i].second; j <= a[i].first; j++) d[j] = (d[j] + k) % p;
	}
	printf("%d", r);
}

Compilation message

rail.cpp: In function 'int main()':
rail.cpp:15:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &t[1], &n);
                          ^
rail.cpp:19:44: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &t[i << 1], &t[i << 1 | 1]);
                                            ^

Subtask #1
10.0 / 10.0

#	결과	메모리	Grader output
1	Correct	12436 KB	Output is correct
2	Correct	12436 KB	Output is correct
3	Correct	12436 KB	Output is correct
4	Correct	12436 KB	Output is correct
5	Correct	12436 KB	Output is correct
6	Correct	12436 KB	Output is correct
7	Correct	12436 KB	Output is correct
8	Correct	12436 KB	Output is correct
9	Correct	12436 KB	Output is correct
10	Correct	12436 KB	Output is correct
11	Correct	12436 KB	Output is correct
12	Correct	12436 KB	Output is correct
13	Correct	12436 KB	Output is correct
14	Correct	12436 KB	Output is correct
15	Correct	12436 KB	Output is correct
16	Correct	12436 KB	Output is correct
17	Correct	12436 KB	Output is correct
18	Correct	12436 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	메모리	Grader output
1	Correct	12436 KB	Output is correct
2	Correct	12436 KB	Output is correct
3	Correct	12436 KB	Output is correct
4	Correct	12436 KB	Output is correct
5	Correct	12436 KB	Output is correct
6	Correct	12436 KB	Output is correct
7	Correct	12436 KB	Output is correct
8	Correct	12436 KB	Output is correct
9	Correct	12436 KB	Output is correct
10	Correct	12436 KB	Output is correct
11	Correct	12436 KB	Output is correct
12	Correct	12436 KB	Output is correct
13	Correct	12436 KB	Output is correct
14	Correct	12436 KB	Output is correct
15	Correct	12436 KB	Output is correct
16	Correct	12436 KB	Output is correct
17	Correct	12436 KB	Output is correct
18	Correct	12436 KB	Output is correct
19	Correct	12436 KB	Output is correct
20	Correct	12436 KB	Output is correct
21	Correct	12436 KB	Output is correct
22	Correct	12436 KB	Output is correct
23	Correct	12436 KB	Output is correct
24	Correct	12436 KB	Output is correct
25	Correct	12436 KB	Output is correct
26	Correct	12436 KB	Output is correct
27	Correct	12436 KB	Output is correct
28	Correct	12436 KB	Output is correct
29	Correct	12436 KB	Output is correct
30	Correct	12436 KB	Output is correct
31	Correct	12436 KB	Output is correct
32	Correct	12436 KB	Output is correct
33	Correct	12436 KB	Output is correct
34	Correct	12436 KB	Output is correct
35	Correct	12436 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	12436 KB	Output is correct
2	Correct	0 ms	12436 KB	Output is correct
3	Correct	0 ms	12436 KB	Output is correct
4	Correct	19 ms	12436 KB	Output is correct
5	Incorrect	0 ms	12436 KB	Output isn't correct
6	Incorrect	0 ms	12436 KB	Output isn't correct
7	Incorrect	0 ms	12436 KB	Output isn't correct
8	Correct	0 ms	12436 KB	Output is correct
9	Incorrect	0 ms	12436 KB	Output isn't correct
10	Incorrect	0 ms	12436 KB	Output isn't correct
11	Incorrect	0 ms	12436 KB	Output isn't correct
12	Incorrect	0 ms	12436 KB	Output isn't correct
13	Incorrect	0 ms	12436 KB	Output isn't correct
14	Incorrect	0 ms	12436 KB	Output isn't correct
15	Incorrect	0 ms	12436 KB	Output isn't correct
16	Incorrect	0 ms	12436 KB	Output isn't correct
17	Incorrect	0 ms	12436 KB	Output isn't correct
18	Incorrect	0 ms	12436 KB	Output isn't correct
19	Incorrect	0 ms	12436 KB	Output isn't correct

Subtask #4
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	12436 KB	Output is correct
2	Correct	0 ms	12436 KB	Output is correct
3	Correct	0 ms	12436 KB	Output is correct
4	Correct	0 ms	12436 KB	Output is correct
5	Correct	0 ms	12436 KB	Output is correct
6	Correct	0 ms	12436 KB	Output is correct
7	Correct	0 ms	12436 KB	Output is correct
8	Correct	0 ms	12436 KB	Output is correct
9	Correct	0 ms	12436 KB	Output is correct
10	Correct	0 ms	12436 KB	Output is correct
11	Correct	0 ms	12436 KB	Output is correct
12	Correct	0 ms	12436 KB	Output is correct
13	Correct	0 ms	12436 KB	Output is correct
14	Correct	0 ms	12436 KB	Output is correct
15	Correct	0 ms	12436 KB	Output is correct
16	Correct	0 ms	12436 KB	Output is correct
17	Correct	0 ms	12436 KB	Output is correct
18	Correct	0 ms	12436 KB	Output is correct
19	Correct	0 ms	12436 KB	Output is correct
20	Correct	0 ms	12436 KB	Output is correct
21	Correct	0 ms	12436 KB	Output is correct
22	Correct	0 ms	12436 KB	Output is correct
23	Correct	0 ms	12436 KB	Output is correct
24	Correct	0 ms	12436 KB	Output is correct
25	Correct	0 ms	12436 KB	Output is correct
26	Correct	0 ms	12436 KB	Output is correct
27	Correct	0 ms	12436 KB	Output is correct
28	Correct	0 ms	12436 KB	Output is correct
29	Correct	0 ms	12436 KB	Output is correct
30	Correct	0 ms	12436 KB	Output is correct
31	Correct	0 ms	12436 KB	Output is correct
32	Correct	0 ms	12436 KB	Output is correct
33	Correct	0 ms	12436 KB	Output is correct
34	Correct	0 ms	12436 KB	Output is correct
35	Correct	0 ms	12436 KB	Output is correct
36	Correct	69 ms	12436 KB	Output is correct
37	Correct	53 ms	12436 KB	Output is correct
38	Correct	16 ms	12436 KB	Output is correct
39	Correct	3 ms	12436 KB	Output is correct
40	Correct	26 ms	12436 KB	Output is correct
41	Correct	59 ms	12436 KB	Output is correct
42	Correct	66 ms	12436 KB	Output is correct
43	Correct	0 ms	12436 KB	Output is correct
44	Correct	39 ms	12436 KB	Output is correct
45	Correct	0 ms	12436 KB	Output is correct
46	Correct	39 ms	12436 KB	Output is correct
47	Correct	36 ms	12436 KB	Output is correct
48	Correct	33 ms	12436 KB	Output is correct
49	Correct	0 ms	12436 KB	Output is correct
50	Correct	3 ms	12436 KB	Output is correct
51	Correct	3 ms	12436 KB	Output is correct
52	Correct	3 ms	12436 KB	Output is correct
53	Correct	59 ms	12436 KB	Output is correct
54	Correct	13 ms	12436 KB	Output is correct
55	Correct	66 ms	12436 KB	Output is correct

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	12436 KB	Output is correct
2	Correct	0 ms	12436 KB	Output is correct
3	Correct	0 ms	12436 KB	Output is correct
4	Correct	0 ms	12436 KB	Output is correct
5	Correct	0 ms	12436 KB	Output is correct
6	Correct	0 ms	12436 KB	Output is correct
7	Correct	0 ms	12436 KB	Output is correct
8	Correct	0 ms	12436 KB	Output is correct
9	Correct	0 ms	12436 KB	Output is correct
10	Correct	0 ms	12436 KB	Output is correct
11	Correct	0 ms	12436 KB	Output is correct
12	Correct	0 ms	12436 KB	Output is correct
13	Correct	0 ms	12436 KB	Output is correct
14	Correct	0 ms	12436 KB	Output is correct
15	Correct	0 ms	12436 KB	Output is correct
16	Correct	0 ms	12436 KB	Output is correct
17	Correct	0 ms	12436 KB	Output is correct
18	Correct	0 ms	12436 KB	Output is correct
19	Correct	0 ms	12436 KB	Output is correct
20	Correct	0 ms	12436 KB	Output is correct
21	Correct	0 ms	12436 KB	Output is correct
22	Correct	0 ms	12436 KB	Output is correct
23	Correct	0 ms	12436 KB	Output is correct
24	Correct	0 ms	12436 KB	Output is correct
25	Correct	0 ms	12436 KB	Output is correct
26	Correct	0 ms	12436 KB	Output is correct
27	Correct	0 ms	12436 KB	Output is correct
28	Correct	0 ms	12436 KB	Output is correct
29	Correct	0 ms	12436 KB	Output is correct
30	Correct	0 ms	12436 KB	Output is correct
31	Correct	0 ms	12436 KB	Output is correct
32	Correct	0 ms	12436 KB	Output is correct
33	Correct	0 ms	12436 KB	Output is correct
34	Correct	0 ms	12436 KB	Output is correct
35	Correct	0 ms	12436 KB	Output is correct
36	Correct	0 ms	12436 KB	Output is correct
37	Correct	0 ms	12436 KB	Output is correct
38	Correct	0 ms	12436 KB	Output is correct
39	Correct	19 ms	12436 KB	Output is correct
40	Incorrect	0 ms	12436 KB	Output isn't correct
41	Incorrect	0 ms	12436 KB	Output isn't correct
42	Incorrect	0 ms	12436 KB	Output isn't correct
43	Correct	0 ms	12436 KB	Output is correct
44	Incorrect	0 ms	12436 KB	Output isn't correct
45	Incorrect	0 ms	12436 KB	Output isn't correct
46	Incorrect	0 ms	12436 KB	Output isn't correct
47	Incorrect	0 ms	12436 KB	Output isn't correct
48	Incorrect	0 ms	12436 KB	Output isn't correct
49	Incorrect	0 ms	12436 KB	Output isn't correct
50	Incorrect	0 ms	12436 KB	Output isn't correct
51	Incorrect	0 ms	12436 KB	Output isn't correct
52	Incorrect	0 ms	12436 KB	Output isn't correct
53	Incorrect	0 ms	12436 KB	Output isn't correct
54	Incorrect	0 ms	12436 KB	Output isn't correct
55	Correct	69 ms	12436 KB	Output is correct
56	Correct	53 ms	12436 KB	Output is correct
57	Correct	16 ms	12436 KB	Output is correct
58	Correct	3 ms	12436 KB	Output is correct
59	Correct	26 ms	12436 KB	Output is correct
60	Correct	59 ms	12436 KB	Output is correct
61	Correct	66 ms	12436 KB	Output is correct
62	Correct	0 ms	12436 KB	Output is correct
63	Correct	39 ms	12436 KB	Output is correct
64	Correct	0 ms	12436 KB	Output is correct
65	Correct	39 ms	12436 KB	Output is correct
66	Correct	36 ms	12436 KB	Output is correct
67	Correct	33 ms	12436 KB	Output is correct
68	Correct	0 ms	12436 KB	Output is correct
69	Correct	3 ms	12436 KB	Output is correct
70	Correct	3 ms	12436 KB	Output is correct
71	Correct	3 ms	12436 KB	Output is correct
72	Correct	59 ms	12436 KB	Output is correct
73	Correct	13 ms	12436 KB	Output is correct
74	Correct	66 ms	12436 KB	Output is correct
75	Incorrect	0 ms	12436 KB	Output isn't correct
76	Incorrect	0 ms	12436 KB	Output isn't correct
77	Incorrect	0 ms	12436 KB	Output isn't correct
78	Incorrect	0 ms	12436 KB	Output isn't correct
79	Incorrect	0 ms	12436 KB	Output isn't correct
80	Incorrect	0 ms	12436 KB	Output isn't correct
81	Incorrect	0 ms	12436 KB	Output isn't correct
82	Incorrect	0 ms	12436 KB	Output isn't correct
83	Incorrect	0 ms	12436 KB	Output isn't correct
84	Incorrect	0 ms	12436 KB	Output isn't correct
85	Incorrect	0 ms	12436 KB	Output isn't correct
86	Incorrect	0 ms	12436 KB	Output isn't correct
87	Incorrect	0 ms	12436 KB	Output isn't correct
88	Incorrect	0 ms	12436 KB	Output isn't correct
89	Incorrect	0 ms	12436 KB	Output isn't correct
90	Incorrect	0 ms	12436 KB	Output isn't correct
91	Incorrect	0 ms	12436 KB	Output isn't correct
92	Incorrect	0 ms	12436 KB	Output isn't correct
93	Incorrect	0 ms	12436 KB	Output isn't correct
94	Incorrect	0 ms	12436 KB	Output isn't correct
95	Incorrect	0 ms	12436 KB	Output isn't correct

답안 #20389

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