답안 #70664 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
70664	2018-08-23T08:21:25 Z	octopuses	Alternating Current (BOI18_alternating)	C++17	55 / 100	3000 ms	5416 KB

alternating

//Giorgi Kldiashvili
#include <bits/stdc++.h>

#define ll long long


using namespace std;

const int N = 100020;

int n, m;

inline int dis(int x, int y)
{
  if(y < x)
    return n + y - x + 1;
  return y - x + 1;
}

vector < pair < int, int > > A[N];
int answer[N], S[N][2];

int main()
{
  scanf("%d %d", &n, &m);
  int ci, cm; ci = cm = 0;
  for(int i = 1; i <= m; ++ i)
  {
    int x, y;
    scanf("%d %d", &x, &y);
    A[x - 1].push_back(make_pair(dis(x, y), i));
    if(dis(x, y) > cm)
      ci = x - 1, cm = dis(x, y);
  }

  for(ci = 0; ci < n; ++ ci)
  {
    for(int p = 0; p < n; ++ p)
    {
      int i = (p + ci) % n;
      for(int j = 0; j < A[i].size(); ++ j)
      {
        int x = A[i][j].first;
        int c = 0;
        for(int k = 0; k < n; ++ k)
        {
          int now = (i + k) % n;
          if(S[now][0] == 0)
          {
            c = 0;
            break;
          }
          if(S[now][1] == 0)
          {
            c = 1;
            break;
          }
        }
        answer[A[i][j].second] = c;
        for(int k = 0; k < x; ++ k)
          S[(i + k) % n][c] = 1;
      }
    }
    bool B = true;
    for(int i = 0; i < n; ++ i)
      if(S[i][0] == 0 || S[i][1] == 0)
      {
        B = false; break;
      }
    if(B) break;
    for(int i = 0; i < n; ++ i)
      S[i][0] = S[i][1] = 0;
  }
  for(int i = 0; i < n; ++ i)
    if(S[i][0] == 0 || S[i][1] == 0)
      return printf("impossible"), 0;
  for(int i = 1; i <= m; ++ i)
    printf("%d", answer[i]);
}

Compilation message

alternating.cpp: In function 'int main()':
alternating.cpp:41:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j = 0; j < A[i].size(); ++ j)
                      ~~^~~~~~~~~~~~~
alternating.cpp:25:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &n, &m);
   ~~~~~^~~~~~~~~~~~~~~~~
alternating.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &x, &y);
     ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2616 KB	Output is correct
2	Correct	4 ms	2672 KB	Output is correct
3	Correct	4 ms	2876 KB	Output is correct
4	Correct	4 ms	2876 KB	Output is correct
5	Correct	5 ms	2876 KB	Output is correct
6	Correct	5 ms	2924 KB	Output is correct
7	Correct	5 ms	2924 KB	Output is correct
8	Correct	5 ms	2924 KB	Output is correct
9	Correct	5 ms	2924 KB	Output is correct
10	Correct	6 ms	2944 KB	Output is correct
11	Correct	9 ms	2944 KB	Output is correct
12	Correct	6 ms	2952 KB	Output is correct
13	Correct	5 ms	2956 KB	Output is correct
14	Correct	4 ms	3040 KB	Output is correct
15	Correct	5 ms	3184 KB	Output is correct
16	Correct	5 ms	3184 KB	Output is correct
17	Correct	5 ms	3184 KB	Output is correct
18	Correct	6 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	6 ms	3188 KB	Output is correct
21	Correct	6 ms	3188 KB	Output is correct
22	Correct	6 ms	3188 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	6 ms	3188 KB	Output is correct
25	Correct	6 ms	3188 KB	Output is correct
26	Correct	5 ms	3188 KB	Output is correct
27	Correct	5 ms	3188 KB	Output is correct
28	Correct	6 ms	3248 KB	Output is correct
29	Correct	5 ms	3248 KB	Output is correct
30	Correct	6 ms	3248 KB	Output is correct
31	Correct	6 ms	3248 KB	Output is correct
32	Correct	7 ms	3248 KB	Output is correct
33	Correct	6 ms	3248 KB	Output is correct
34	Correct	6 ms	3252 KB	Output is correct
35	Correct	5 ms	3252 KB	Output is correct
36	Correct	5 ms	3252 KB	Output is correct
37	Correct	5 ms	3252 KB	Output is correct
38	Correct	5 ms	3252 KB	Output is correct
39	Correct	5 ms	3252 KB	Output is correct
40	Correct	4 ms	3252 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2616 KB	Output is correct
2	Correct	4 ms	2672 KB	Output is correct
3	Correct	4 ms	2876 KB	Output is correct
4	Correct	4 ms	2876 KB	Output is correct
5	Correct	5 ms	2876 KB	Output is correct
6	Correct	5 ms	2924 KB	Output is correct
7	Correct	5 ms	2924 KB	Output is correct
8	Correct	5 ms	2924 KB	Output is correct
9	Correct	5 ms	2924 KB	Output is correct
10	Correct	6 ms	2944 KB	Output is correct
11	Correct	9 ms	2944 KB	Output is correct
12	Correct	6 ms	2952 KB	Output is correct
13	Correct	5 ms	2956 KB	Output is correct
14	Correct	4 ms	3040 KB	Output is correct
15	Correct	5 ms	3184 KB	Output is correct
16	Correct	5 ms	3184 KB	Output is correct
17	Correct	5 ms	3184 KB	Output is correct
18	Correct	6 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	6 ms	3188 KB	Output is correct
21	Correct	6 ms	3188 KB	Output is correct
22	Correct	6 ms	3188 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	6 ms	3188 KB	Output is correct
25	Correct	6 ms	3188 KB	Output is correct
26	Correct	5 ms	3188 KB	Output is correct
27	Correct	5 ms	3188 KB	Output is correct
28	Correct	6 ms	3248 KB	Output is correct
29	Correct	5 ms	3248 KB	Output is correct
30	Correct	6 ms	3248 KB	Output is correct
31	Correct	6 ms	3248 KB	Output is correct
32	Correct	7 ms	3248 KB	Output is correct
33	Correct	6 ms	3248 KB	Output is correct
34	Correct	6 ms	3252 KB	Output is correct
35	Correct	5 ms	3252 KB	Output is correct
36	Correct	5 ms	3252 KB	Output is correct
37	Correct	5 ms	3252 KB	Output is correct
38	Correct	5 ms	3252 KB	Output is correct
39	Correct	5 ms	3252 KB	Output is correct
40	Correct	4 ms	3252 KB	Output is correct
41	Correct	5 ms	3252 KB	Output is correct
42	Correct	5 ms	3252 KB	Output is correct
43	Correct	5 ms	3252 KB	Output is correct
44	Correct	5 ms	3252 KB	Output is correct
45	Correct	5 ms	3252 KB	Output is correct
46	Correct	5 ms	3252 KB	Output is correct
47	Correct	5 ms	3252 KB	Output is correct
48	Correct	9 ms	3252 KB	Output is correct
49	Correct	5 ms	3252 KB	Output is correct
50	Correct	4 ms	3252 KB	Output is correct
51	Correct	5 ms	3252 KB	Output is correct
52	Correct	6 ms	3296 KB	Output is correct
53	Correct	5 ms	3296 KB	Output is correct
54	Correct	5 ms	3296 KB	Output is correct
55	Correct	4 ms	3308 KB	Output is correct
56	Correct	5 ms	3308 KB	Output is correct
57	Correct	4 ms	3308 KB	Output is correct
58	Correct	5 ms	3308 KB	Output is correct
59	Correct	5 ms	3308 KB	Output is correct
60	Correct	5 ms	3308 KB	Output is correct
61	Correct	5 ms	3308 KB	Output is correct
62	Correct	6 ms	3308 KB	Output is correct
63	Correct	7 ms	3308 KB	Output is correct
64	Correct	5 ms	3308 KB	Output is correct
65	Correct	6 ms	3308 KB	Output is correct
66	Correct	5 ms	3308 KB	Output is correct
67	Correct	4 ms	3308 KB	Output is correct
68	Correct	4 ms	3416 KB	Output is correct
69	Correct	4 ms	3416 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2616 KB	Output is correct
2	Correct	4 ms	2672 KB	Output is correct
3	Correct	4 ms	2876 KB	Output is correct
4	Correct	4 ms	2876 KB	Output is correct
5	Correct	5 ms	2876 KB	Output is correct
6	Correct	5 ms	2924 KB	Output is correct
7	Correct	5 ms	2924 KB	Output is correct
8	Correct	5 ms	2924 KB	Output is correct
9	Correct	5 ms	2924 KB	Output is correct
10	Correct	6 ms	2944 KB	Output is correct
11	Correct	9 ms	2944 KB	Output is correct
12	Correct	6 ms	2952 KB	Output is correct
13	Correct	5 ms	2956 KB	Output is correct
14	Correct	4 ms	3040 KB	Output is correct
15	Correct	5 ms	3184 KB	Output is correct
16	Correct	5 ms	3184 KB	Output is correct
17	Correct	5 ms	3184 KB	Output is correct
18	Correct	6 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	6 ms	3188 KB	Output is correct
21	Correct	6 ms	3188 KB	Output is correct
22	Correct	6 ms	3188 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	6 ms	3188 KB	Output is correct
25	Correct	6 ms	3188 KB	Output is correct
26	Correct	5 ms	3188 KB	Output is correct
27	Correct	5 ms	3188 KB	Output is correct
28	Correct	6 ms	3248 KB	Output is correct
29	Correct	5 ms	3248 KB	Output is correct
30	Correct	6 ms	3248 KB	Output is correct
31	Correct	6 ms	3248 KB	Output is correct
32	Correct	7 ms	3248 KB	Output is correct
33	Correct	6 ms	3248 KB	Output is correct
34	Correct	6 ms	3252 KB	Output is correct
35	Correct	5 ms	3252 KB	Output is correct
36	Correct	5 ms	3252 KB	Output is correct
37	Correct	5 ms	3252 KB	Output is correct
38	Correct	5 ms	3252 KB	Output is correct
39	Correct	5 ms	3252 KB	Output is correct
40	Correct	4 ms	3252 KB	Output is correct
41	Correct	5 ms	3252 KB	Output is correct
42	Correct	5 ms	3252 KB	Output is correct
43	Correct	5 ms	3252 KB	Output is correct
44	Correct	5 ms	3252 KB	Output is correct
45	Correct	5 ms	3252 KB	Output is correct
46	Correct	5 ms	3252 KB	Output is correct
47	Correct	5 ms	3252 KB	Output is correct
48	Correct	9 ms	3252 KB	Output is correct
49	Correct	5 ms	3252 KB	Output is correct
50	Correct	4 ms	3252 KB	Output is correct
51	Correct	5 ms	3252 KB	Output is correct
52	Correct	6 ms	3296 KB	Output is correct
53	Correct	5 ms	3296 KB	Output is correct
54	Correct	5 ms	3296 KB	Output is correct
55	Correct	4 ms	3308 KB	Output is correct
56	Correct	5 ms	3308 KB	Output is correct
57	Correct	4 ms	3308 KB	Output is correct
58	Correct	5 ms	3308 KB	Output is correct
59	Correct	5 ms	3308 KB	Output is correct
60	Correct	5 ms	3308 KB	Output is correct
61	Correct	5 ms	3308 KB	Output is correct
62	Correct	6 ms	3308 KB	Output is correct
63	Correct	7 ms	3308 KB	Output is correct
64	Correct	5 ms	3308 KB	Output is correct
65	Correct	6 ms	3308 KB	Output is correct
66	Correct	5 ms	3308 KB	Output is correct
67	Correct	4 ms	3308 KB	Output is correct
68	Correct	4 ms	3416 KB	Output is correct
69	Correct	4 ms	3416 KB	Output is correct
70	Correct	16 ms	3416 KB	Output is correct
71	Correct	26 ms	3416 KB	Output is correct
72	Correct	15 ms	3416 KB	Output is correct
73	Correct	5 ms	3416 KB	Output is correct
74	Correct	5 ms	3416 KB	Output is correct
75	Correct	5 ms	3416 KB	Output is correct
76	Correct	2660 ms	3424 KB	Output is correct
77	Correct	7 ms	3424 KB	Output is correct
78	Correct	21 ms	3424 KB	Output is correct
79	Correct	20 ms	3456 KB	Output is correct
80	Correct	68 ms	3456 KB	Output is correct
81	Correct	5 ms	3456 KB	Output is correct
82	Correct	5 ms	3456 KB	Output is correct
83	Correct	5 ms	3456 KB	Output is correct
84	Correct	6 ms	3456 KB	Output is correct
85	Correct	7 ms	3456 KB	Output is correct
86	Correct	7 ms	3456 KB	Output is correct
87	Correct	5 ms	3456 KB	Output is correct
88	Correct	6 ms	3456 KB	Output is correct
89	Correct	2600 ms	3564 KB	Output is correct
90	Correct	16 ms	3564 KB	Output is correct
91	Correct	7 ms	3564 KB	Output is correct
92	Correct	7 ms	3564 KB	Output is correct
93	Correct	6 ms	3564 KB	Output is correct
94	Correct	15 ms	3564 KB	Output is correct
95	Correct	5 ms	3680 KB	Output is correct
96	Correct	6 ms	3680 KB	Output is correct
97	Correct	4 ms	3680 KB	Output is correct
98	Correct	5 ms	3680 KB	Output is correct

Subtask #4
0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	3040 ms	5416 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2616 KB	Output is correct
2	Correct	4 ms	2672 KB	Output is correct
3	Correct	4 ms	2876 KB	Output is correct
4	Correct	4 ms	2876 KB	Output is correct
5	Correct	5 ms	2876 KB	Output is correct
6	Correct	5 ms	2924 KB	Output is correct
7	Correct	5 ms	2924 KB	Output is correct
8	Correct	5 ms	2924 KB	Output is correct
9	Correct	5 ms	2924 KB	Output is correct
10	Correct	6 ms	2944 KB	Output is correct
11	Correct	9 ms	2944 KB	Output is correct
12	Correct	6 ms	2952 KB	Output is correct
13	Correct	5 ms	2956 KB	Output is correct
14	Correct	4 ms	3040 KB	Output is correct
15	Correct	5 ms	3184 KB	Output is correct
16	Correct	5 ms	3184 KB	Output is correct
17	Correct	5 ms	3184 KB	Output is correct
18	Correct	6 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	6 ms	3188 KB	Output is correct
21	Correct	6 ms	3188 KB	Output is correct
22	Correct	6 ms	3188 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	6 ms	3188 KB	Output is correct
25	Correct	6 ms	3188 KB	Output is correct
26	Correct	5 ms	3188 KB	Output is correct
27	Correct	5 ms	3188 KB	Output is correct
28	Correct	6 ms	3248 KB	Output is correct
29	Correct	5 ms	3248 KB	Output is correct
30	Correct	6 ms	3248 KB	Output is correct
31	Correct	6 ms	3248 KB	Output is correct
32	Correct	7 ms	3248 KB	Output is correct
33	Correct	6 ms	3248 KB	Output is correct
34	Correct	6 ms	3252 KB	Output is correct
35	Correct	5 ms	3252 KB	Output is correct
36	Correct	5 ms	3252 KB	Output is correct
37	Correct	5 ms	3252 KB	Output is correct
38	Correct	5 ms	3252 KB	Output is correct
39	Correct	5 ms	3252 KB	Output is correct
40	Correct	4 ms	3252 KB	Output is correct
41	Correct	5 ms	3252 KB	Output is correct
42	Correct	5 ms	3252 KB	Output is correct
43	Correct	5 ms	3252 KB	Output is correct
44	Correct	5 ms	3252 KB	Output is correct
45	Correct	5 ms	3252 KB	Output is correct
46	Correct	5 ms	3252 KB	Output is correct
47	Correct	5 ms	3252 KB	Output is correct
48	Correct	9 ms	3252 KB	Output is correct
49	Correct	5 ms	3252 KB	Output is correct
50	Correct	4 ms	3252 KB	Output is correct
51	Correct	5 ms	3252 KB	Output is correct
52	Correct	6 ms	3296 KB	Output is correct
53	Correct	5 ms	3296 KB	Output is correct
54	Correct	5 ms	3296 KB	Output is correct
55	Correct	4 ms	3308 KB	Output is correct
56	Correct	5 ms	3308 KB	Output is correct
57	Correct	4 ms	3308 KB	Output is correct
58	Correct	5 ms	3308 KB	Output is correct
59	Correct	5 ms	3308 KB	Output is correct
60	Correct	5 ms	3308 KB	Output is correct
61	Correct	5 ms	3308 KB	Output is correct
62	Correct	6 ms	3308 KB	Output is correct
63	Correct	7 ms	3308 KB	Output is correct
64	Correct	5 ms	3308 KB	Output is correct
65	Correct	6 ms	3308 KB	Output is correct
66	Correct	5 ms	3308 KB	Output is correct
67	Correct	4 ms	3308 KB	Output is correct
68	Correct	4 ms	3416 KB	Output is correct
69	Correct	4 ms	3416 KB	Output is correct
70	Correct	16 ms	3416 KB	Output is correct
71	Correct	26 ms	3416 KB	Output is correct
72	Correct	15 ms	3416 KB	Output is correct
73	Correct	5 ms	3416 KB	Output is correct
74	Correct	5 ms	3416 KB	Output is correct
75	Correct	5 ms	3416 KB	Output is correct
76	Correct	2660 ms	3424 KB	Output is correct
77	Correct	7 ms	3424 KB	Output is correct
78	Correct	21 ms	3424 KB	Output is correct
79	Correct	20 ms	3456 KB	Output is correct
80	Correct	68 ms	3456 KB	Output is correct
81	Correct	5 ms	3456 KB	Output is correct
82	Correct	5 ms	3456 KB	Output is correct
83	Correct	5 ms	3456 KB	Output is correct
84	Correct	6 ms	3456 KB	Output is correct
85	Correct	7 ms	3456 KB	Output is correct
86	Correct	7 ms	3456 KB	Output is correct
87	Correct	5 ms	3456 KB	Output is correct
88	Correct	6 ms	3456 KB	Output is correct
89	Correct	2600 ms	3564 KB	Output is correct
90	Correct	16 ms	3564 KB	Output is correct
91	Correct	7 ms	3564 KB	Output is correct
92	Correct	7 ms	3564 KB	Output is correct
93	Correct	6 ms	3564 KB	Output is correct
94	Correct	15 ms	3564 KB	Output is correct
95	Correct	5 ms	3680 KB	Output is correct
96	Correct	6 ms	3680 KB	Output is correct
97	Correct	4 ms	3680 KB	Output is correct
98	Correct	5 ms	3680 KB	Output is correct
99	Execution timed out	3040 ms	5416 KB	Time limit exceeded
100	Halted	0 ms	0 KB	-

답안 #70664

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 20.0 / 20.0

Subtask #3 22.0 / 22.0

Subtask #4 0 / 19.0

Subtask #5 0 / 26.0

Subtask #1
13.0 / 13.0

Subtask #2
20.0 / 20.0

Subtask #3
22.0 / 22.0

Subtask #4
0 / 19.0

Subtask #5
0 / 26.0