Submission #51324

# Submission time Handle Problem Language Result Execution time Memory
51324 2018-06-17T13:21:28 Z ho94949 Rope (JOI17_rope) C++17
100 / 100
2232 ms 83504 KB
#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)
	{
		int idxc = idx[c+MAXN]; setv(c, 0);
		
		for(auto x: adj[c])
			addv(x, -1);
		
		anseven[c] = idxc + idx[1];
		
		for(auto x: adj[c])
			addv(x, +1);
		
		setv(c, idxc);
	}
}

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)
	{
		int idxc = idx[c+MAXN]; setv(c, 0);
		
		for(auto x: adj[c])
			addv(x, -1);
		
		ansodd[c] = idxc + idx[1];
		
		for(auto x: adj[c])
			addv(x, +1);
		
		setv(c, idxc);
	}
	
}

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:103:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~
rope.cpp:104:30: 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);
                         ~~~~~^~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 28 ms 33144 KB Output is correct
2 Correct 28 ms 33252 KB Output is correct
3 Correct 27 ms 33304 KB Output is correct
4 Correct 27 ms 33356 KB Output is correct
5 Correct 27 ms 33356 KB Output is correct
6 Correct 30 ms 33408 KB Output is correct
7 Correct 27 ms 33408 KB Output is correct
8 Correct 27 ms 33484 KB Output is correct
9 Correct 28 ms 33556 KB Output is correct
10 Correct 28 ms 33556 KB Output is correct
11 Correct 27 ms 33556 KB Output is correct
12 Correct 32 ms 33556 KB Output is correct
13 Correct 28 ms 33556 KB Output is correct
14 Correct 28 ms 33556 KB Output is correct
15 Correct 28 ms 33556 KB Output is correct
16 Correct 28 ms 33556 KB Output is correct
17 Correct 27 ms 33556 KB Output is correct
18 Correct 28 ms 33556 KB Output is correct
19 Correct 28 ms 33556 KB Output is correct
20 Correct 28 ms 33556 KB Output is correct
21 Correct 28 ms 33556 KB Output is correct
22 Correct 28 ms 33556 KB Output is correct
23 Correct 28 ms 33556 KB Output is correct
24 Correct 28 ms 33556 KB Output is correct
25 Correct 28 ms 33556 KB Output is correct
26 Correct 27 ms 33556 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 28 ms 33144 KB Output is correct
2 Correct 28 ms 33252 KB Output is correct
3 Correct 27 ms 33304 KB Output is correct
4 Correct 27 ms 33356 KB Output is correct
5 Correct 27 ms 33356 KB Output is correct
6 Correct 30 ms 33408 KB Output is correct
7 Correct 27 ms 33408 KB Output is correct
8 Correct 27 ms 33484 KB Output is correct
9 Correct 28 ms 33556 KB Output is correct
10 Correct 28 ms 33556 KB Output is correct
11 Correct 27 ms 33556 KB Output is correct
12 Correct 32 ms 33556 KB Output is correct
13 Correct 28 ms 33556 KB Output is correct
14 Correct 28 ms 33556 KB Output is correct
15 Correct 28 ms 33556 KB Output is correct
16 Correct 28 ms 33556 KB Output is correct
17 Correct 27 ms 33556 KB Output is correct
18 Correct 28 ms 33556 KB Output is correct
19 Correct 28 ms 33556 KB Output is correct
20 Correct 28 ms 33556 KB Output is correct
21 Correct 28 ms 33556 KB Output is correct
22 Correct 28 ms 33556 KB Output is correct
23 Correct 28 ms 33556 KB Output is correct
24 Correct 28 ms 33556 KB Output is correct
25 Correct 28 ms 33556 KB Output is correct
26 Correct 27 ms 33556 KB Output is correct
27 Correct 81 ms 34532 KB Output is correct
28 Correct 76 ms 34532 KB Output is correct
29 Correct 80 ms 34532 KB Output is correct
30 Correct 77 ms 34532 KB Output is correct
31 Correct 82 ms 34532 KB Output is correct
32 Correct 76 ms 34532 KB Output is correct
33 Correct 80 ms 34532 KB Output is correct
34 Correct 78 ms 34532 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 28 ms 33144 KB Output is correct
2 Correct 28 ms 33252 KB Output is correct
3 Correct 27 ms 33304 KB Output is correct
4 Correct 27 ms 33356 KB Output is correct
5 Correct 27 ms 33356 KB Output is correct
6 Correct 30 ms 33408 KB Output is correct
7 Correct 27 ms 33408 KB Output is correct
8 Correct 27 ms 33484 KB Output is correct
9 Correct 28 ms 33556 KB Output is correct
10 Correct 28 ms 33556 KB Output is correct
11 Correct 27 ms 33556 KB Output is correct
12 Correct 32 ms 33556 KB Output is correct
13 Correct 28 ms 33556 KB Output is correct
14 Correct 28 ms 33556 KB Output is correct
15 Correct 28 ms 33556 KB Output is correct
16 Correct 28 ms 33556 KB Output is correct
17 Correct 27 ms 33556 KB Output is correct
18 Correct 28 ms 33556 KB Output is correct
19 Correct 28 ms 33556 KB Output is correct
20 Correct 28 ms 33556 KB Output is correct
21 Correct 28 ms 33556 KB Output is correct
22 Correct 28 ms 33556 KB Output is correct
23 Correct 28 ms 33556 KB Output is correct
24 Correct 28 ms 33556 KB Output is correct
25 Correct 28 ms 33556 KB Output is correct
26 Correct 27 ms 33556 KB Output is correct
27 Correct 81 ms 34532 KB Output is correct
28 Correct 76 ms 34532 KB Output is correct
29 Correct 80 ms 34532 KB Output is correct
30 Correct 77 ms 34532 KB Output is correct
31 Correct 82 ms 34532 KB Output is correct
32 Correct 76 ms 34532 KB Output is correct
33 Correct 80 ms 34532 KB Output is correct
34 Correct 78 ms 34532 KB Output is correct
35 Correct 78 ms 34532 KB Output is correct
36 Correct 77 ms 34532 KB Output is correct
37 Correct 77 ms 34532 KB Output is correct
38 Correct 77 ms 34532 KB Output is correct
39 Correct 76 ms 34532 KB Output is correct
40 Correct 76 ms 34532 KB Output is correct
41 Correct 103 ms 34532 KB Output is correct
42 Correct 77 ms 34556 KB Output is correct
43 Correct 79 ms 34556 KB Output is correct
44 Correct 76 ms 34556 KB Output is correct
45 Correct 77 ms 34556 KB Output is correct
46 Correct 77 ms 34556 KB Output is correct
47 Correct 82 ms 34616 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 28 ms 33144 KB Output is correct
2 Correct 28 ms 33252 KB Output is correct
3 Correct 27 ms 33304 KB Output is correct
4 Correct 27 ms 33356 KB Output is correct
5 Correct 27 ms 33356 KB Output is correct
6 Correct 30 ms 33408 KB Output is correct
7 Correct 27 ms 33408 KB Output is correct
8 Correct 27 ms 33484 KB Output is correct
9 Correct 28 ms 33556 KB Output is correct
10 Correct 28 ms 33556 KB Output is correct
11 Correct 27 ms 33556 KB Output is correct
12 Correct 32 ms 33556 KB Output is correct
13 Correct 28 ms 33556 KB Output is correct
14 Correct 28 ms 33556 KB Output is correct
15 Correct 28 ms 33556 KB Output is correct
16 Correct 28 ms 33556 KB Output is correct
17 Correct 27 ms 33556 KB Output is correct
18 Correct 28 ms 33556 KB Output is correct
19 Correct 28 ms 33556 KB Output is correct
20 Correct 28 ms 33556 KB Output is correct
21 Correct 28 ms 33556 KB Output is correct
22 Correct 28 ms 33556 KB Output is correct
23 Correct 28 ms 33556 KB Output is correct
24 Correct 28 ms 33556 KB Output is correct
25 Correct 28 ms 33556 KB Output is correct
26 Correct 27 ms 33556 KB Output is correct
27 Correct 81 ms 34532 KB Output is correct
28 Correct 76 ms 34532 KB Output is correct
29 Correct 80 ms 34532 KB Output is correct
30 Correct 77 ms 34532 KB Output is correct
31 Correct 82 ms 34532 KB Output is correct
32 Correct 76 ms 34532 KB Output is correct
33 Correct 80 ms 34532 KB Output is correct
34 Correct 78 ms 34532 KB Output is correct
35 Correct 78 ms 34532 KB Output is correct
36 Correct 77 ms 34532 KB Output is correct
37 Correct 77 ms 34532 KB Output is correct
38 Correct 77 ms 34532 KB Output is correct
39 Correct 76 ms 34532 KB Output is correct
40 Correct 76 ms 34532 KB Output is correct
41 Correct 103 ms 34532 KB Output is correct
42 Correct 77 ms 34556 KB Output is correct
43 Correct 79 ms 34556 KB Output is correct
44 Correct 76 ms 34556 KB Output is correct
45 Correct 77 ms 34556 KB Output is correct
46 Correct 77 ms 34556 KB Output is correct
47 Correct 82 ms 34616 KB Output is correct
48 Correct 524 ms 44044 KB Output is correct
49 Correct 523 ms 44044 KB Output is correct
50 Correct 530 ms 44236 KB Output is correct
51 Correct 524 ms 44236 KB Output is correct
52 Correct 510 ms 44236 KB Output is correct
53 Correct 506 ms 44236 KB Output is correct
54 Correct 518 ms 44236 KB Output is correct
55 Correct 509 ms 44236 KB Output is correct
56 Correct 502 ms 44236 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 28 ms 33144 KB Output is correct
2 Correct 28 ms 33252 KB Output is correct
3 Correct 27 ms 33304 KB Output is correct
4 Correct 27 ms 33356 KB Output is correct
5 Correct 27 ms 33356 KB Output is correct
6 Correct 30 ms 33408 KB Output is correct
7 Correct 27 ms 33408 KB Output is correct
8 Correct 27 ms 33484 KB Output is correct
9 Correct 28 ms 33556 KB Output is correct
10 Correct 28 ms 33556 KB Output is correct
11 Correct 27 ms 33556 KB Output is correct
12 Correct 32 ms 33556 KB Output is correct
13 Correct 28 ms 33556 KB Output is correct
14 Correct 28 ms 33556 KB Output is correct
15 Correct 28 ms 33556 KB Output is correct
16 Correct 28 ms 33556 KB Output is correct
17 Correct 27 ms 33556 KB Output is correct
18 Correct 28 ms 33556 KB Output is correct
19 Correct 28 ms 33556 KB Output is correct
20 Correct 28 ms 33556 KB Output is correct
21 Correct 28 ms 33556 KB Output is correct
22 Correct 28 ms 33556 KB Output is correct
23 Correct 28 ms 33556 KB Output is correct
24 Correct 28 ms 33556 KB Output is correct
25 Correct 28 ms 33556 KB Output is correct
26 Correct 27 ms 33556 KB Output is correct
27 Correct 81 ms 34532 KB Output is correct
28 Correct 76 ms 34532 KB Output is correct
29 Correct 80 ms 34532 KB Output is correct
30 Correct 77 ms 34532 KB Output is correct
31 Correct 82 ms 34532 KB Output is correct
32 Correct 76 ms 34532 KB Output is correct
33 Correct 80 ms 34532 KB Output is correct
34 Correct 78 ms 34532 KB Output is correct
35 Correct 78 ms 34532 KB Output is correct
36 Correct 77 ms 34532 KB Output is correct
37 Correct 77 ms 34532 KB Output is correct
38 Correct 77 ms 34532 KB Output is correct
39 Correct 76 ms 34532 KB Output is correct
40 Correct 76 ms 34532 KB Output is correct
41 Correct 103 ms 34532 KB Output is correct
42 Correct 77 ms 34556 KB Output is correct
43 Correct 79 ms 34556 KB Output is correct
44 Correct 76 ms 34556 KB Output is correct
45 Correct 77 ms 34556 KB Output is correct
46 Correct 77 ms 34556 KB Output is correct
47 Correct 82 ms 34616 KB Output is correct
48 Correct 524 ms 44044 KB Output is correct
49 Correct 523 ms 44044 KB Output is correct
50 Correct 530 ms 44236 KB Output is correct
51 Correct 524 ms 44236 KB Output is correct
52 Correct 510 ms 44236 KB Output is correct
53 Correct 506 ms 44236 KB Output is correct
54 Correct 518 ms 44236 KB Output is correct
55 Correct 509 ms 44236 KB Output is correct
56 Correct 502 ms 44236 KB Output is correct
57 Correct 2232 ms 83504 KB Output is correct
58 Correct 1910 ms 83504 KB Output is correct
59 Correct 1770 ms 83504 KB Output is correct
60 Correct 1862 ms 83504 KB Output is correct
61 Correct 1868 ms 83504 KB Output is correct
62 Correct 954 ms 83504 KB Output is correct
63 Correct 1384 ms 83504 KB Output is correct
64 Correct 1168 ms 83504 KB Output is correct
65 Correct 796 ms 83504 KB Output is correct