답안 #51321 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
51321	2018-06-17T13:15:42 Z	ho94949	Rope (JOI17_rope)	C++17	100 / 100	2495 ms	144580 KB

rope

#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1048576;
int idx[2*MAXN];
int getv(int a, int b)
{
	a += MAXN; b += MAXN;
	int ans = 0;
	while(a<=b)
	{
		if(a%2==1) ans = max(ans, idx[a++]);
		if(b%2==0) ans = max(ans, idx[b--]);
		a/=2; b/=2;
	}
	return ans;
}
void setv(int a, int v)
{
	idx[a+=MAXN] = v;
	while((a=a/2))
		idx[a] = max(idx[2*a], idx[2*a+1]);
}
void addv(int a, int v)
{
	idx[a+=MAXN] += v;
	while((a=a/2))
		idx[a] = max(idx[2*a], idx[2*a+1]);
}


int N, K;
vector<int> adj[MAXN];

int arr[MAXN];
int anseven[MAXN], ansodd[MAXN];
void even()
{
	for(int i=0; i<N/2; ++i)
	{
		int l = arr[2*i], r = arr[2*i+1];
		if(l == r)
			addv(l, 2);
		else
		{
			addv(l, 1); addv(r, 1);
			adj[l].push_back(r);
			adj[r].push_back(l);
		}
	}
	if(N%2==1) addv(arr[N-1], 1);
	for(int c=1; c<=K; ++c)
	{
		for(auto x: adj[c])
			addv(x, -1);
		
		anseven[c] = (getv(c, c) + max(getv(1, c-1), getv(c+1, K)));
		
		for(auto x: adj[c])
			addv(x, +1);
	}
}

void odd()
{
	addv(arr[0], 1);
	for(int i=0; i<(N-1)/2; ++i)
	{
		int l = arr[2*i+1], r = arr[2*i+2];
		if(l == r)
			addv(l, 2);
		else
		{
			addv(l, 1); addv(r, 1);
			adj[l].push_back(r);
			adj[r].push_back(l);
		}
	}
	if(N%2==0) addv(arr[N-1], 1);
	
	for(int c=1; c<=K; ++c)
	{
		for(auto x: adj[c])
			addv(x, -1);
		
		ansodd[c] = (getv(c, c) + max(getv(1, c-1), getv(c+1, K)));
		
		for(auto x: adj[c])
			addv(x, +1);
	}
	
}

int main()
{
	scanf("%d%d", &N, &K);
	for(int i=0; i<N; ++i) scanf("%d", arr+i);
	even();
	for(int i=1; i<=K; ++i) adj[i].clear();
	memset(idx, 0, sizeof idx);
	odd();
	for(int i=1; i<=K; ++i)
		printf("%d\n", N-max(anseven[i], ansodd[i]));
	return 0;
}

Compilation message

rope.cpp: In function 'int main()':
rope.cpp:95:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~
rope.cpp:96:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0; i<N; ++i) scanf("%d", arr+i);
                         ~~~~~^~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	33148 KB	Output is correct
2	Correct	31 ms	33328 KB	Output is correct
3	Correct	28 ms	33364 KB	Output is correct
4	Correct	39 ms	33440 KB	Output is correct
5	Correct	28 ms	33440 KB	Output is correct
6	Correct	27 ms	33440 KB	Output is correct
7	Correct	28 ms	33480 KB	Output is correct
8	Correct	27 ms	33480 KB	Output is correct
9	Correct	27 ms	33480 KB	Output is correct
10	Correct	27 ms	33480 KB	Output is correct
11	Correct	28 ms	33480 KB	Output is correct
12	Correct	28 ms	33480 KB	Output is correct
13	Correct	29 ms	33480 KB	Output is correct
14	Correct	31 ms	33480 KB	Output is correct
15	Correct	28 ms	33480 KB	Output is correct
16	Correct	28 ms	33480 KB	Output is correct
17	Correct	28 ms	33480 KB	Output is correct
18	Correct	29 ms	33480 KB	Output is correct
19	Correct	29 ms	33480 KB	Output is correct
20	Correct	28 ms	33480 KB	Output is correct
21	Correct	29 ms	33480 KB	Output is correct
22	Correct	28 ms	33480 KB	Output is correct
23	Correct	29 ms	33480 KB	Output is correct
24	Correct	28 ms	33480 KB	Output is correct
25	Correct	27 ms	33480 KB	Output is correct
26	Correct	27 ms	33480 KB	Output is correct

Subtask #2
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	33148 KB	Output is correct
2	Correct	31 ms	33328 KB	Output is correct
3	Correct	28 ms	33364 KB	Output is correct
4	Correct	39 ms	33440 KB	Output is correct
5	Correct	28 ms	33440 KB	Output is correct
6	Correct	27 ms	33440 KB	Output is correct
7	Correct	28 ms	33480 KB	Output is correct
8	Correct	27 ms	33480 KB	Output is correct
9	Correct	27 ms	33480 KB	Output is correct
10	Correct	27 ms	33480 KB	Output is correct
11	Correct	28 ms	33480 KB	Output is correct
12	Correct	28 ms	33480 KB	Output is correct
13	Correct	29 ms	33480 KB	Output is correct
14	Correct	31 ms	33480 KB	Output is correct
15	Correct	28 ms	33480 KB	Output is correct
16	Correct	28 ms	33480 KB	Output is correct
17	Correct	28 ms	33480 KB	Output is correct
18	Correct	29 ms	33480 KB	Output is correct
19	Correct	29 ms	33480 KB	Output is correct
20	Correct	28 ms	33480 KB	Output is correct
21	Correct	29 ms	33480 KB	Output is correct
22	Correct	28 ms	33480 KB	Output is correct
23	Correct	29 ms	33480 KB	Output is correct
24	Correct	28 ms	33480 KB	Output is correct
25	Correct	27 ms	33480 KB	Output is correct
26	Correct	27 ms	33480 KB	Output is correct
27	Correct	82 ms	34480 KB	Output is correct
28	Correct	75 ms	34480 KB	Output is correct
29	Correct	79 ms	34480 KB	Output is correct
30	Correct	80 ms	34480 KB	Output is correct
31	Correct	83 ms	34480 KB	Output is correct
32	Correct	75 ms	34480 KB	Output is correct
33	Correct	93 ms	34480 KB	Output is correct
34	Correct	83 ms	34480 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	33148 KB	Output is correct
2	Correct	31 ms	33328 KB	Output is correct
3	Correct	28 ms	33364 KB	Output is correct
4	Correct	39 ms	33440 KB	Output is correct
5	Correct	28 ms	33440 KB	Output is correct
6	Correct	27 ms	33440 KB	Output is correct
7	Correct	28 ms	33480 KB	Output is correct
8	Correct	27 ms	33480 KB	Output is correct
9	Correct	27 ms	33480 KB	Output is correct
10	Correct	27 ms	33480 KB	Output is correct
11	Correct	28 ms	33480 KB	Output is correct
12	Correct	28 ms	33480 KB	Output is correct
13	Correct	29 ms	33480 KB	Output is correct
14	Correct	31 ms	33480 KB	Output is correct
15	Correct	28 ms	33480 KB	Output is correct
16	Correct	28 ms	33480 KB	Output is correct
17	Correct	28 ms	33480 KB	Output is correct
18	Correct	29 ms	33480 KB	Output is correct
19	Correct	29 ms	33480 KB	Output is correct
20	Correct	28 ms	33480 KB	Output is correct
21	Correct	29 ms	33480 KB	Output is correct
22	Correct	28 ms	33480 KB	Output is correct
23	Correct	29 ms	33480 KB	Output is correct
24	Correct	28 ms	33480 KB	Output is correct
25	Correct	27 ms	33480 KB	Output is correct
26	Correct	27 ms	33480 KB	Output is correct
27	Correct	82 ms	34480 KB	Output is correct
28	Correct	75 ms	34480 KB	Output is correct
29	Correct	79 ms	34480 KB	Output is correct
30	Correct	80 ms	34480 KB	Output is correct
31	Correct	83 ms	34480 KB	Output is correct
32	Correct	75 ms	34480 KB	Output is correct
33	Correct	93 ms	34480 KB	Output is correct
34	Correct	83 ms	34480 KB	Output is correct
35	Correct	77 ms	34480 KB	Output is correct
36	Correct	75 ms	34480 KB	Output is correct
37	Correct	87 ms	34480 KB	Output is correct
38	Correct	80 ms	34480 KB	Output is correct
39	Correct	80 ms	34480 KB	Output is correct
40	Correct	76 ms	34552 KB	Output is correct
41	Correct	75 ms	34552 KB	Output is correct
42	Correct	76 ms	34552 KB	Output is correct
43	Correct	115 ms	34552 KB	Output is correct
44	Correct	114 ms	34552 KB	Output is correct
45	Correct	95 ms	34672 KB	Output is correct
46	Correct	74 ms	34672 KB	Output is correct
47	Correct	81 ms	34696 KB	Output is correct

Subtask #4
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	33148 KB	Output is correct
2	Correct	31 ms	33328 KB	Output is correct
3	Correct	28 ms	33364 KB	Output is correct
4	Correct	39 ms	33440 KB	Output is correct
5	Correct	28 ms	33440 KB	Output is correct
6	Correct	27 ms	33440 KB	Output is correct
7	Correct	28 ms	33480 KB	Output is correct
8	Correct	27 ms	33480 KB	Output is correct
9	Correct	27 ms	33480 KB	Output is correct
10	Correct	27 ms	33480 KB	Output is correct
11	Correct	28 ms	33480 KB	Output is correct
12	Correct	28 ms	33480 KB	Output is correct
13	Correct	29 ms	33480 KB	Output is correct
14	Correct	31 ms	33480 KB	Output is correct
15	Correct	28 ms	33480 KB	Output is correct
16	Correct	28 ms	33480 KB	Output is correct
17	Correct	28 ms	33480 KB	Output is correct
18	Correct	29 ms	33480 KB	Output is correct
19	Correct	29 ms	33480 KB	Output is correct
20	Correct	28 ms	33480 KB	Output is correct
21	Correct	29 ms	33480 KB	Output is correct
22	Correct	28 ms	33480 KB	Output is correct
23	Correct	29 ms	33480 KB	Output is correct
24	Correct	28 ms	33480 KB	Output is correct
25	Correct	27 ms	33480 KB	Output is correct
26	Correct	27 ms	33480 KB	Output is correct
27	Correct	82 ms	34480 KB	Output is correct
28	Correct	75 ms	34480 KB	Output is correct
29	Correct	79 ms	34480 KB	Output is correct
30	Correct	80 ms	34480 KB	Output is correct
31	Correct	83 ms	34480 KB	Output is correct
32	Correct	75 ms	34480 KB	Output is correct
33	Correct	93 ms	34480 KB	Output is correct
34	Correct	83 ms	34480 KB	Output is correct
35	Correct	77 ms	34480 KB	Output is correct
36	Correct	75 ms	34480 KB	Output is correct
37	Correct	87 ms	34480 KB	Output is correct
38	Correct	80 ms	34480 KB	Output is correct
39	Correct	80 ms	34480 KB	Output is correct
40	Correct	76 ms	34552 KB	Output is correct
41	Correct	75 ms	34552 KB	Output is correct
42	Correct	76 ms	34552 KB	Output is correct
43	Correct	115 ms	34552 KB	Output is correct
44	Correct	114 ms	34552 KB	Output is correct
45	Correct	95 ms	34672 KB	Output is correct
46	Correct	74 ms	34672 KB	Output is correct
47	Correct	81 ms	34696 KB	Output is correct
48	Correct	655 ms	44020 KB	Output is correct
49	Correct	585 ms	48636 KB	Output is correct
50	Correct	544 ms	53208 KB	Output is correct
51	Correct	575 ms	57476 KB	Output is correct
52	Correct	550 ms	60120 KB	Output is correct
53	Correct	526 ms	64884 KB	Output is correct
54	Correct	504 ms	68460 KB	Output is correct
55	Correct	510 ms	72724 KB	Output is correct
56	Correct	550 ms	76992 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	33148 KB	Output is correct
2	Correct	31 ms	33328 KB	Output is correct
3	Correct	28 ms	33364 KB	Output is correct
4	Correct	39 ms	33440 KB	Output is correct
5	Correct	28 ms	33440 KB	Output is correct
6	Correct	27 ms	33440 KB	Output is correct
7	Correct	28 ms	33480 KB	Output is correct
8	Correct	27 ms	33480 KB	Output is correct
9	Correct	27 ms	33480 KB	Output is correct
10	Correct	27 ms	33480 KB	Output is correct
11	Correct	28 ms	33480 KB	Output is correct
12	Correct	28 ms	33480 KB	Output is correct
13	Correct	29 ms	33480 KB	Output is correct
14	Correct	31 ms	33480 KB	Output is correct
15	Correct	28 ms	33480 KB	Output is correct
16	Correct	28 ms	33480 KB	Output is correct
17	Correct	28 ms	33480 KB	Output is correct
18	Correct	29 ms	33480 KB	Output is correct
19	Correct	29 ms	33480 KB	Output is correct
20	Correct	28 ms	33480 KB	Output is correct
21	Correct	29 ms	33480 KB	Output is correct
22	Correct	28 ms	33480 KB	Output is correct
23	Correct	29 ms	33480 KB	Output is correct
24	Correct	28 ms	33480 KB	Output is correct
25	Correct	27 ms	33480 KB	Output is correct
26	Correct	27 ms	33480 KB	Output is correct
27	Correct	82 ms	34480 KB	Output is correct
28	Correct	75 ms	34480 KB	Output is correct
29	Correct	79 ms	34480 KB	Output is correct
30	Correct	80 ms	34480 KB	Output is correct
31	Correct	83 ms	34480 KB	Output is correct
32	Correct	75 ms	34480 KB	Output is correct
33	Correct	93 ms	34480 KB	Output is correct
34	Correct	83 ms	34480 KB	Output is correct
35	Correct	77 ms	34480 KB	Output is correct
36	Correct	75 ms	34480 KB	Output is correct
37	Correct	87 ms	34480 KB	Output is correct
38	Correct	80 ms	34480 KB	Output is correct
39	Correct	80 ms	34480 KB	Output is correct
40	Correct	76 ms	34552 KB	Output is correct
41	Correct	75 ms	34552 KB	Output is correct
42	Correct	76 ms	34552 KB	Output is correct
43	Correct	115 ms	34552 KB	Output is correct
44	Correct	114 ms	34552 KB	Output is correct
45	Correct	95 ms	34672 KB	Output is correct
46	Correct	74 ms	34672 KB	Output is correct
47	Correct	81 ms	34696 KB	Output is correct
48	Correct	655 ms	44020 KB	Output is correct
49	Correct	585 ms	48636 KB	Output is correct
50	Correct	544 ms	53208 KB	Output is correct
51	Correct	575 ms	57476 KB	Output is correct
52	Correct	550 ms	60120 KB	Output is correct
53	Correct	526 ms	64884 KB	Output is correct
54	Correct	504 ms	68460 KB	Output is correct
55	Correct	510 ms	72724 KB	Output is correct
56	Correct	550 ms	76992 KB	Output is correct
57	Correct	2495 ms	125388 KB	Output is correct
58	Correct	1998 ms	125388 KB	Output is correct
59	Correct	2096 ms	125388 KB	Output is correct
60	Correct	2155 ms	131536 KB	Output is correct
61	Correct	2131 ms	138284 KB	Output is correct
62	Correct	1059 ms	138284 KB	Output is correct
63	Correct	1296 ms	141028 KB	Output is correct
64	Correct	1158 ms	144580 KB	Output is correct
65	Correct	833 ms	144580 KB	Output is correct

답안 #51321

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