답안 #163417

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
163417	2019-11-13T08:53:50 Z	iefnah06	Rope (JOI17_rope)	C++11	100 / 100	1157 ms	80760 KB

rope

#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1e6 + 10;
const int MAXM = MAXN;
int N, M;
int A[MAXN];
vector<int> v[MAXM];

int cost[MAXM];
int ind[MAXM];

int main() {
	scanf("%d %d", &N, &M);
	for (int i = 0; i < N; i++) {
		scanf("%d", &A[i]); A[i]--;
		v[A[i]].push_back(i);
		cost[A[i]] -= 1;
	}
	iota(ind, ind + M, 0);
	sort(ind, ind + M, [&](int a, int b) { return cost[a] < cost[b]; });

	for (int c = 0; c < M; c++) {
		int ans = N - int(v[c].size());

		for (int par = 0; par < 2; par++) {
			// at most 2 * |v[c]| incident colors
			int cnt = 0;
			for (int i : v[c]) {
				if (i > 0 && i % 2 != par) {
					cost[A[i - 1]] += 1;
					cnt++;
				}
				if (i < N - 1 && (i + 1) % 2 != par) {
					cost[A[i + 1]] += 1;
					cnt++;
				}
			}

			cnt = min(cnt + 2, M);
			int extra = N;
			for (int i = 0; i < cnt; i++) {
				if (ind[i] == c) continue;
				extra = min(extra, cost[ind[i]]);
			}
			ans = min(ans, N - int(v[c].size()) + extra);

			for (int i : v[c]) {
				if (i > 0 && i % 2 != par) {
					cost[A[i - 1]]--;
				}
				if (i < N - 1 && (i + 1) % 2 != par) {
					cost[A[i + 1]]--;
				}
			}
		}

		printf("%d\n", ans);
	}

	return 0;
}

Compilation message

rope.cpp: In function 'int main()':
rope.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
rope.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[i]); A[i]--;
   ~~~~~^~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23800 KB	Output is correct
2	Correct	23 ms	23800 KB	Output is correct
3	Correct	23 ms	23804 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23800 KB	Output is correct
6	Correct	25 ms	23800 KB	Output is correct
7	Correct	26 ms	23852 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	24 ms	23800 KB	Output is correct
10	Correct	24 ms	23876 KB	Output is correct
11	Correct	23 ms	23800 KB	Output is correct
12	Correct	23 ms	23800 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	24 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	23 ms	23800 KB	Output is correct
17	Correct	23 ms	23804 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	24 ms	23800 KB	Output is correct
20	Correct	24 ms	23800 KB	Output is correct
21	Correct	23 ms	23808 KB	Output is correct
22	Correct	23 ms	23804 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	23 ms	23800 KB	Output is correct

Subtask #2
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23800 KB	Output is correct
2	Correct	23 ms	23800 KB	Output is correct
3	Correct	23 ms	23804 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23800 KB	Output is correct
6	Correct	25 ms	23800 KB	Output is correct
7	Correct	26 ms	23852 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	24 ms	23800 KB	Output is correct
10	Correct	24 ms	23876 KB	Output is correct
11	Correct	23 ms	23800 KB	Output is correct
12	Correct	23 ms	23800 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	24 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	23 ms	23800 KB	Output is correct
17	Correct	23 ms	23804 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	24 ms	23800 KB	Output is correct
20	Correct	24 ms	23800 KB	Output is correct
21	Correct	23 ms	23808 KB	Output is correct
22	Correct	23 ms	23804 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	23 ms	23800 KB	Output is correct
27	Correct	40 ms	25132 KB	Output is correct
28	Correct	38 ms	24952 KB	Output is correct
29	Correct	39 ms	24952 KB	Output is correct
30	Correct	38 ms	25080 KB	Output is correct
31	Correct	39 ms	25036 KB	Output is correct
32	Correct	38 ms	24908 KB	Output is correct
33	Correct	39 ms	25208 KB	Output is correct
34	Correct	39 ms	24996 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23800 KB	Output is correct
2	Correct	23 ms	23800 KB	Output is correct
3	Correct	23 ms	23804 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23800 KB	Output is correct
6	Correct	25 ms	23800 KB	Output is correct
7	Correct	26 ms	23852 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	24 ms	23800 KB	Output is correct
10	Correct	24 ms	23876 KB	Output is correct
11	Correct	23 ms	23800 KB	Output is correct
12	Correct	23 ms	23800 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	24 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	23 ms	23800 KB	Output is correct
17	Correct	23 ms	23804 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	24 ms	23800 KB	Output is correct
20	Correct	24 ms	23800 KB	Output is correct
21	Correct	23 ms	23808 KB	Output is correct
22	Correct	23 ms	23804 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	23 ms	23800 KB	Output is correct
27	Correct	40 ms	25132 KB	Output is correct
28	Correct	38 ms	24952 KB	Output is correct
29	Correct	39 ms	24952 KB	Output is correct
30	Correct	38 ms	25080 KB	Output is correct
31	Correct	39 ms	25036 KB	Output is correct
32	Correct	38 ms	24908 KB	Output is correct
33	Correct	39 ms	25208 KB	Output is correct
34	Correct	39 ms	24996 KB	Output is correct
35	Correct	55 ms	25160 KB	Output is correct
36	Correct	44 ms	25208 KB	Output is correct
37	Correct	44 ms	25080 KB	Output is correct
38	Correct	43 ms	25208 KB	Output is correct
39	Correct	44 ms	25080 KB	Output is correct
40	Correct	41 ms	25208 KB	Output is correct
41	Correct	69 ms	25192 KB	Output is correct
42	Correct	41 ms	25276 KB	Output is correct
43	Correct	41 ms	25272 KB	Output is correct
44	Correct	41 ms	25208 KB	Output is correct
45	Correct	42 ms	25208 KB	Output is correct
46	Correct	42 ms	25208 KB	Output is correct
47	Correct	42 ms	25208 KB	Output is correct

Subtask #4
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23800 KB	Output is correct
2	Correct	23 ms	23800 KB	Output is correct
3	Correct	23 ms	23804 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23800 KB	Output is correct
6	Correct	25 ms	23800 KB	Output is correct
7	Correct	26 ms	23852 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	24 ms	23800 KB	Output is correct
10	Correct	24 ms	23876 KB	Output is correct
11	Correct	23 ms	23800 KB	Output is correct
12	Correct	23 ms	23800 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	24 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	23 ms	23800 KB	Output is correct
17	Correct	23 ms	23804 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	24 ms	23800 KB	Output is correct
20	Correct	24 ms	23800 KB	Output is correct
21	Correct	23 ms	23808 KB	Output is correct
22	Correct	23 ms	23804 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	23 ms	23800 KB	Output is correct
27	Correct	40 ms	25132 KB	Output is correct
28	Correct	38 ms	24952 KB	Output is correct
29	Correct	39 ms	24952 KB	Output is correct
30	Correct	38 ms	25080 KB	Output is correct
31	Correct	39 ms	25036 KB	Output is correct
32	Correct	38 ms	24908 KB	Output is correct
33	Correct	39 ms	25208 KB	Output is correct
34	Correct	39 ms	24996 KB	Output is correct
35	Correct	55 ms	25160 KB	Output is correct
36	Correct	44 ms	25208 KB	Output is correct
37	Correct	44 ms	25080 KB	Output is correct
38	Correct	43 ms	25208 KB	Output is correct
39	Correct	44 ms	25080 KB	Output is correct
40	Correct	41 ms	25208 KB	Output is correct
41	Correct	69 ms	25192 KB	Output is correct
42	Correct	41 ms	25276 KB	Output is correct
43	Correct	41 ms	25272 KB	Output is correct
44	Correct	41 ms	25208 KB	Output is correct
45	Correct	42 ms	25208 KB	Output is correct
46	Correct	42 ms	25208 KB	Output is correct
47	Correct	42 ms	25208 KB	Output is correct
48	Correct	318 ms	39032 KB	Output is correct
49	Correct	326 ms	39052 KB	Output is correct
50	Correct	307 ms	38904 KB	Output is correct
51	Correct	299 ms	38676 KB	Output is correct
52	Correct	296 ms	37160 KB	Output is correct
53	Correct	252 ms	38076 KB	Output is correct
54	Correct	234 ms	37196 KB	Output is correct
55	Correct	238 ms	36984 KB	Output is correct
56	Correct	249 ms	36600 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	23800 KB	Output is correct
2	Correct	23 ms	23800 KB	Output is correct
3	Correct	23 ms	23804 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23800 KB	Output is correct
6	Correct	25 ms	23800 KB	Output is correct
7	Correct	26 ms	23852 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	24 ms	23800 KB	Output is correct
10	Correct	24 ms	23876 KB	Output is correct
11	Correct	23 ms	23800 KB	Output is correct
12	Correct	23 ms	23800 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	24 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	23 ms	23800 KB	Output is correct
17	Correct	23 ms	23804 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	24 ms	23800 KB	Output is correct
20	Correct	24 ms	23800 KB	Output is correct
21	Correct	23 ms	23808 KB	Output is correct
22	Correct	23 ms	23804 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	23 ms	23800 KB	Output is correct
27	Correct	40 ms	25132 KB	Output is correct
28	Correct	38 ms	24952 KB	Output is correct
29	Correct	39 ms	24952 KB	Output is correct
30	Correct	38 ms	25080 KB	Output is correct
31	Correct	39 ms	25036 KB	Output is correct
32	Correct	38 ms	24908 KB	Output is correct
33	Correct	39 ms	25208 KB	Output is correct
34	Correct	39 ms	24996 KB	Output is correct
35	Correct	55 ms	25160 KB	Output is correct
36	Correct	44 ms	25208 KB	Output is correct
37	Correct	44 ms	25080 KB	Output is correct
38	Correct	43 ms	25208 KB	Output is correct
39	Correct	44 ms	25080 KB	Output is correct
40	Correct	41 ms	25208 KB	Output is correct
41	Correct	69 ms	25192 KB	Output is correct
42	Correct	41 ms	25276 KB	Output is correct
43	Correct	41 ms	25272 KB	Output is correct
44	Correct	41 ms	25208 KB	Output is correct
45	Correct	42 ms	25208 KB	Output is correct
46	Correct	42 ms	25208 KB	Output is correct
47	Correct	42 ms	25208 KB	Output is correct
48	Correct	318 ms	39032 KB	Output is correct
49	Correct	326 ms	39052 KB	Output is correct
50	Correct	307 ms	38904 KB	Output is correct
51	Correct	299 ms	38676 KB	Output is correct
52	Correct	296 ms	37160 KB	Output is correct
53	Correct	252 ms	38076 KB	Output is correct
54	Correct	234 ms	37196 KB	Output is correct
55	Correct	238 ms	36984 KB	Output is correct
56	Correct	249 ms	36600 KB	Output is correct
57	Correct	1157 ms	80760 KB	Output is correct
58	Correct	950 ms	62232 KB	Output is correct
59	Correct	897 ms	62204 KB	Output is correct
60	Correct	951 ms	66864 KB	Output is correct
61	Correct	967 ms	66808 KB	Output is correct
62	Correct	490 ms	51192 KB	Output is correct
63	Correct	663 ms	56440 KB	Output is correct
64	Correct	725 ms	53424 KB	Output is correct
65	Correct	363 ms	44792 KB	Output is correct

답안 #163417

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 30.0 / 30.0

Subtask #3 10.0 / 10.0

Subtask #4 25.0 / 25.0

Subtask #5 20.0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
30.0 / 30.0

Subtask #3
10.0 / 10.0

Subtask #4
25.0 / 25.0

Subtask #5
20.0 / 20.0