#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
int main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
ll n,m;
cin>>n>>m;
ll c[n+5];
vector<ll>pos[m+5],cnt(m+5,0);
for(ll i=1;i<=n;i++){
cin>>c[i];
cnt[c[i]]++;
pos[c[i]].pb(i);
}
vector<ll>even(m+5,0),odd(m+5,0);
multiset<ll,greater<ll>>C;
for(ll i=1;i<=m;i++){
C.insert(cnt[i]);
}
for(ll i=1;i<=m;i++){
set<ll>st;
for(ll p:pos[i]){
if(p>1&&c[p-1]!=i){
if(p%2==0) even[c[p-1]]++;
else odd[c[p-1]]++;
st.insert(c[p-1]);
}
if(p<n&&c[p+1]!=i){
if(p%2==1) even[c[p+1]]++;
else odd[c[p+1]]++;
st.insert(c[p+1]);
}
}
ll ans=n;
C.erase(C.find(cnt[i]));
for(ll x:st){
ans=min(ans,n-cnt[i]-cnt[x]+min(odd[x],even[x]));
C.erase(C.find(cnt[x]));
}
if(!C.empty()){
ans=min(ans,n-cnt[i]-*C.begin());
}
ans=min(ans,n-cnt[i]);
cout<<ans<<'\n';
for(ll x:st){
odd[x]=0;
even[x]=0;
C.insert(cnt[x]);
}
C.insert(cnt[i]);
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
452 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
452 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
9 ms |
2652 KB |
Output is correct |
28 |
Correct |
7 ms |
2264 KB |
Output is correct |
29 |
Correct |
8 ms |
2624 KB |
Output is correct |
30 |
Correct |
7 ms |
2280 KB |
Output is correct |
31 |
Correct |
10 ms |
2596 KB |
Output is correct |
32 |
Correct |
6 ms |
2344 KB |
Output is correct |
33 |
Correct |
8 ms |
2396 KB |
Output is correct |
34 |
Correct |
7 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
452 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
9 ms |
2652 KB |
Output is correct |
28 |
Correct |
7 ms |
2264 KB |
Output is correct |
29 |
Correct |
8 ms |
2624 KB |
Output is correct |
30 |
Correct |
7 ms |
2280 KB |
Output is correct |
31 |
Correct |
10 ms |
2596 KB |
Output is correct |
32 |
Correct |
6 ms |
2344 KB |
Output is correct |
33 |
Correct |
8 ms |
2396 KB |
Output is correct |
34 |
Correct |
7 ms |
2396 KB |
Output is correct |
35 |
Correct |
43 ms |
2652 KB |
Output is correct |
36 |
Correct |
47 ms |
2652 KB |
Output is correct |
37 |
Correct |
40 ms |
2652 KB |
Output is correct |
38 |
Correct |
39 ms |
2652 KB |
Output is correct |
39 |
Correct |
40 ms |
2652 KB |
Output is correct |
40 |
Correct |
23 ms |
2908 KB |
Output is correct |
41 |
Correct |
23 ms |
2940 KB |
Output is correct |
42 |
Correct |
18 ms |
2652 KB |
Output is correct |
43 |
Correct |
17 ms |
2908 KB |
Output is correct |
44 |
Correct |
24 ms |
2728 KB |
Output is correct |
45 |
Correct |
24 ms |
2908 KB |
Output is correct |
46 |
Correct |
19 ms |
2652 KB |
Output is correct |
47 |
Correct |
18 ms |
2908 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
452 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
9 ms |
2652 KB |
Output is correct |
28 |
Correct |
7 ms |
2264 KB |
Output is correct |
29 |
Correct |
8 ms |
2624 KB |
Output is correct |
30 |
Correct |
7 ms |
2280 KB |
Output is correct |
31 |
Correct |
10 ms |
2596 KB |
Output is correct |
32 |
Correct |
6 ms |
2344 KB |
Output is correct |
33 |
Correct |
8 ms |
2396 KB |
Output is correct |
34 |
Correct |
7 ms |
2396 KB |
Output is correct |
35 |
Correct |
43 ms |
2652 KB |
Output is correct |
36 |
Correct |
47 ms |
2652 KB |
Output is correct |
37 |
Correct |
40 ms |
2652 KB |
Output is correct |
38 |
Correct |
39 ms |
2652 KB |
Output is correct |
39 |
Correct |
40 ms |
2652 KB |
Output is correct |
40 |
Correct |
23 ms |
2908 KB |
Output is correct |
41 |
Correct |
23 ms |
2940 KB |
Output is correct |
42 |
Correct |
18 ms |
2652 KB |
Output is correct |
43 |
Correct |
17 ms |
2908 KB |
Output is correct |
44 |
Correct |
24 ms |
2728 KB |
Output is correct |
45 |
Correct |
24 ms |
2908 KB |
Output is correct |
46 |
Correct |
19 ms |
2652 KB |
Output is correct |
47 |
Correct |
18 ms |
2908 KB |
Output is correct |
48 |
Correct |
683 ms |
26200 KB |
Output is correct |
49 |
Correct |
725 ms |
26196 KB |
Output is correct |
50 |
Correct |
678 ms |
26196 KB |
Output is correct |
51 |
Correct |
473 ms |
25448 KB |
Output is correct |
52 |
Correct |
350 ms |
23124 KB |
Output is correct |
53 |
Correct |
340 ms |
24576 KB |
Output is correct |
54 |
Correct |
252 ms |
22356 KB |
Output is correct |
55 |
Correct |
232 ms |
22108 KB |
Output is correct |
56 |
Correct |
180 ms |
21476 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
452 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
9 ms |
2652 KB |
Output is correct |
28 |
Correct |
7 ms |
2264 KB |
Output is correct |
29 |
Correct |
8 ms |
2624 KB |
Output is correct |
30 |
Correct |
7 ms |
2280 KB |
Output is correct |
31 |
Correct |
10 ms |
2596 KB |
Output is correct |
32 |
Correct |
6 ms |
2344 KB |
Output is correct |
33 |
Correct |
8 ms |
2396 KB |
Output is correct |
34 |
Correct |
7 ms |
2396 KB |
Output is correct |
35 |
Correct |
43 ms |
2652 KB |
Output is correct |
36 |
Correct |
47 ms |
2652 KB |
Output is correct |
37 |
Correct |
40 ms |
2652 KB |
Output is correct |
38 |
Correct |
39 ms |
2652 KB |
Output is correct |
39 |
Correct |
40 ms |
2652 KB |
Output is correct |
40 |
Correct |
23 ms |
2908 KB |
Output is correct |
41 |
Correct |
23 ms |
2940 KB |
Output is correct |
42 |
Correct |
18 ms |
2652 KB |
Output is correct |
43 |
Correct |
17 ms |
2908 KB |
Output is correct |
44 |
Correct |
24 ms |
2728 KB |
Output is correct |
45 |
Correct |
24 ms |
2908 KB |
Output is correct |
46 |
Correct |
19 ms |
2652 KB |
Output is correct |
47 |
Correct |
18 ms |
2908 KB |
Output is correct |
48 |
Correct |
683 ms |
26200 KB |
Output is correct |
49 |
Correct |
725 ms |
26196 KB |
Output is correct |
50 |
Correct |
678 ms |
26196 KB |
Output is correct |
51 |
Correct |
473 ms |
25448 KB |
Output is correct |
52 |
Correct |
350 ms |
23124 KB |
Output is correct |
53 |
Correct |
340 ms |
24576 KB |
Output is correct |
54 |
Correct |
252 ms |
22356 KB |
Output is correct |
55 |
Correct |
232 ms |
22108 KB |
Output is correct |
56 |
Correct |
180 ms |
21476 KB |
Output is correct |
57 |
Correct |
1563 ms |
147196 KB |
Output is correct |
58 |
Correct |
1626 ms |
95644 KB |
Output is correct |
59 |
Correct |
1657 ms |
95456 KB |
Output is correct |
60 |
Correct |
1713 ms |
108208 KB |
Output is correct |
61 |
Correct |
1689 ms |
108116 KB |
Output is correct |
62 |
Correct |
621 ms |
60500 KB |
Output is correct |
63 |
Correct |
1059 ms |
75860 KB |
Output is correct |
64 |
Correct |
845 ms |
66552 KB |
Output is correct |
65 |
Correct |
364 ms |
42268 KB |
Output is correct |