oj.uz

Submission #851442

# Submission time Handle Problem Language Result Execution time Memory
851442 2023-09-19T18:47:47 Z damwuan Group Photo (JOI21_ho_t3) C++17
100 / 100
 225 ms 196184 KB 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define bit(n,i) ((n>>i)&1)
#define all(x) x.begin(),x.end()
//#pragma GCC optimize("O2,unroll-loops")
//#pragma GCC target("avx,avx2,bmi,bmi2,sse,sse2,sse3,ssse3,sse4,popcnt")
//#define int long long
typedef long long ll;
typedef pair<int,int> pii;
typedef double ld;
typedef pair<ld,ld> pdd;
typedef pair<ll,ll> pll;
const ll maxn=5e3+5;
const ll offset=1e18;
const ll block_sz=317;
const ll inf=1e9;
const ll mod=1e9+7;
int n,h[maxn],dd[maxn][maxn],cnt[maxn][maxn],dp[maxn];
void sol()
{
    cin >> n;
    for1(i,1,n) cin >> h[i];
    for1(i,1,n)
    {
        for1(j,i+1,n)
        {
            if (h[i]<h[j])
            {
                cnt[h[i]][h[j]]=1;
            }
            else
            {
                dd[h[j]][h[i]]=1;

            }
        }
    }
    for1(range,3,n)
    {
        for1(i,1,n-range+1)
        {
            int j=i+range-1;
            cnt[i][j]=cnt[i][j] + cnt[i][j-1] + cnt[i+1][j] - cnt[i+1][j-1];
            //cerr<< i<<' '<<j<<' '<<cnt[i][j]<<'\n';
        }
    }
//    cerr<< cnt[1][5]<<'\n';
    for1(i,1,n)
    {
        for2(j,n,i+1)
        {
            dd[i][j]+=dd[i][j+1];
        }
    }
    //cerr<< dd[1][3]<<'\n';
    for1(j,2,n)
    {
        for2(i,j-2,1)
        {
            dd[i][j]+=dd[i+1][j];
        }
    }
    for1(i,1,n) dp[i]=inf;
    for1(i,1,n)
    {
        for1(j,1,i)
        {
            dp[i]=min(dp[i],dp[j-1]+cnt[j][i]+dd[j][i+1]);
        }
        //if (i==5) cerr<< dp[1-1]<<' '<<cnt[1][i]<<' '<<dd[1][i+1]<<'\n';
        //  cerr<< i<<' '<<dp[i]<<'\n';
    }
    cout << dp[n];

}

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t=1;//cin >> t;
    while (t--)
    {
        sol();
    }
}
/*

3 5 2 4 1
*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 3 ms 10584 KB Output is correct
22 Correct 2 ms 10584 KB Output is correct
23 Correct 2 ms 10588 KB Output is correct
24 Correct 2 ms 10584 KB Output is correct
25 Correct 2 ms 10584 KB Output is correct
26 Correct 2 ms 10584 KB Output is correct
27 Correct 2 ms 10588 KB Output is correct
28 Correct 2 ms 10584 KB Output is correct
29 Correct 2 ms 10584 KB Output is correct
30 Correct 2 ms 10584 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 3 ms 10584 KB Output is correct
22 Correct 2 ms 10584 KB Output is correct
23 Correct 2 ms 10588 KB Output is correct
24 Correct 2 ms 10584 KB Output is correct
25 Correct 2 ms 10584 KB Output is correct
26 Correct 2 ms 10584 KB Output is correct
27 Correct 2 ms 10588 KB Output is correct
28 Correct 2 ms 10584 KB Output is correct
29 Correct 2 ms 10584 KB Output is correct
30 Correct 2 ms 10584 KB Output is correct
31 Correct 7 ms 35416 KB Output is correct
32 Correct 6 ms 35416 KB Output is correct
33 Correct 7 ms 35416 KB Output is correct
34 Correct 7 ms 35276 KB Output is correct
35 Correct 7 ms 35416 KB Output is correct
36 Correct 7 ms 35416 KB Output is correct
37 Correct 7 ms 35160 KB Output is correct
38 Correct 7 ms 35416 KB Output is correct
39 Correct 7 ms 35164 KB Output is correct
40 Correct 7 ms 35416 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct
21 Correct 3 ms 10584 KB Output is correct
22 Correct 2 ms 10584 KB Output is correct
23 Correct 2 ms 10588 KB Output is correct
24 Correct 2 ms 10584 KB Output is correct
25 Correct 2 ms 10584 KB Output is correct
26 Correct 2 ms 10584 KB Output is correct
27 Correct 2 ms 10588 KB Output is correct
28 Correct 2 ms 10584 KB Output is correct
29 Correct 2 ms 10584 KB Output is correct
30 Correct 2 ms 10584 KB Output is correct
31 Correct 7 ms 35416 KB Output is correct
32 Correct 6 ms 35416 KB Output is correct
33 Correct 7 ms 35416 KB Output is correct
34 Correct 7 ms 35276 KB Output is correct
35 Correct 7 ms 35416 KB Output is correct
36 Correct 7 ms 35416 KB Output is correct
37 Correct 7 ms 35160 KB Output is correct
38 Correct 7 ms 35416 KB Output is correct
39 Correct 7 ms 35164 KB Output is correct
40 Correct 7 ms 35416 KB Output is correct
41 Correct 225 ms 195664 KB Output is correct
42 Correct 220 ms 195664 KB Output is correct
43 Correct 223 ms 195848 KB Output is correct
44 Correct 216 ms 195664 KB Output is correct
45 Correct 221 ms 195856 KB Output is correct
46 Correct 219 ms 195664 KB Output is correct
47 Correct 222 ms 196156 KB Output is correct
48 Correct 220 ms 195768 KB Output is correct
49 Correct 221 ms 195764 KB Output is correct
50 Correct 216 ms 195664 KB Output is correct
51 Correct 221 ms 196008 KB Output is correct
52 Correct 222 ms 195784 KB Output is correct
53 Correct 218 ms 195760 KB Output is correct
54 Correct 215 ms 195632 KB Output is correct
55 Correct 220 ms 196184 KB Output is correct