oj.uz

Submission #753278

# Submission time Handle Problem Language Result Execution time Memory
753278 2023-06-05T01:39:45 Z bgnbvnbv Group Photo (JOI21_ho_t3) C++14
100 / 100
 905 ms 744 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5;
const ll inf=1e18;
const ll mod=1e9+7;
ll n,bit[3][maxN];
void update(ll t,ll i,ll v)
{
    while(i<=n)
    {
        bit[t][i]+=v;
        i+=(i&(-i));
    }
}
ll get(ll t,ll i)
{
    ll ans=0;
    while(i>0)
    {
        ans+=bit[t][i];
        i-=(i&(-i));
    }
    return ans;
}
ll a[maxN],pos[maxN],dp[maxN];
void solve()
{
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i] ,pos[a[i]]=i;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=2;j++) fill(bit[j],bit[j]+n+1,0);
        ll sum1=0,sum2=0;
        for(int j=1;j<=i;j++) update(2,pos[j],1);
        dp[i]=inf;
        for(int j=i;j>=1;j--)
        {
            sum1+=get(1,n)-get(1,pos[j]);
            update(2,pos[j],-1);
            sum2+=get(2,n)-get(2,pos[j]);
            sum2-=get(1,pos[j]);
            update(1,pos[j],1);
            dp[i]=min(dp[i],dp[j-1]+sum1+sum2);
        }
    }
    cout << dp[n];
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 18 ms 376 KB Output is correct
32 Correct 19 ms 408 KB Output is correct
33 Correct 18 ms 340 KB Output is correct
34 Correct 18 ms 396 KB Output is correct
35 Correct 16 ms 396 KB Output is correct
36 Correct 16 ms 404 KB Output is correct
37 Correct 15 ms 340 KB Output is correct
38 Correct 16 ms 400 KB Output is correct
39 Correct 15 ms 404 KB Output is correct
40 Correct 16 ms 340 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 324 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 18 ms 376 KB Output is correct
32 Correct 19 ms 408 KB Output is correct
33 Correct 18 ms 340 KB Output is correct
34 Correct 18 ms 396 KB Output is correct
35 Correct 16 ms 396 KB Output is correct
36 Correct 16 ms 404 KB Output is correct
37 Correct 15 ms 340 KB Output is correct
38 Correct 16 ms 400 KB Output is correct
39 Correct 15 ms 404 KB Output is correct
40 Correct 16 ms 340 KB Output is correct
41 Correct 893 ms 560 KB Output is correct
42 Correct 893 ms 676 KB Output is correct
43 Correct 853 ms 604 KB Output is correct
44 Correct 878 ms 684 KB Output is correct
45 Correct 905 ms 680 KB Output is correct
46 Correct 842 ms 744 KB Output is correct
47 Correct 839 ms 676 KB Output is correct
48 Correct 836 ms 560 KB Output is correct
49 Correct 847 ms 664 KB Output is correct
50 Correct 847 ms 684 KB Output is correct
51 Correct 839 ms 564 KB Output is correct
52 Correct 841 ms 676 KB Output is correct
53 Correct 840 ms 584 KB Output is correct
54 Correct 839 ms 676 KB Output is correct
55 Correct 840 ms 588 KB Output is correct