oj.uz

Submission #759230

# Submission time Handle Problem Language Result Execution time Memory
759230 2023-06-15T22:02:51 Z 1075508020060209tc Group Photo (JOI21_ho_t3) C++14
100 / 100
 386 ms 516 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
int lowbit(int x){return x&-x;}
int bit[200005];

void upd(int pl,int val){
while(pl<=5000){
    bit[pl]+=val;
    pl+=lowbit(pl);
}
}
int qsum(int pl){
int ret=0;
while(pl){
    ret+=bit[pl];
    pl-=lowbit(pl);
}
return ret;
}



int n;
int ar[5010];
int rar[5010];
int dp[5010];
int ps[5010];

signed main(){
cin>>n;
for(int i=1;i<=n;i++){
    cin>>ar[i];
    rar[ar[i]]=i;
    dp[i]=1e16;
}

dp[0]=0;
for(int i=1;i<=n;i++){
    int cal=0;
    for(int a=1;a<=5000;a++){
        bit[a]=0;
        ps[a]=ps[a-1];
        if(ar[a]>i){ps[a]++;}
    }
 //   for(int a=1;a<=i;a++){
   //     upd(rar[a],1);
    //}


    for(int j=i-1;j>=0;j--){


/*
        for(int a=1;a<=n;a++){
            if(ar[a]>j&&ar[a]<=i){
                //for(int b=1;b<a;b++){
                  //  if((ar[b]<ar[a]&&ar[b]>j)||(ar[b]>i) ){cal++;}
                //}
                cal+=qsum(ar[a]);
            }
            if(ar[a]>j&&ar[a]<=i){
                upd(ar[a],1);
            }
            if(ar[a]>i){
                upd(1,1);
            }
        }
*/
        cal+=ps[rar[j+1]];
        upd(rar[j+1],1);
        cal+=qsum(5000)-qsum(rar[j+1]);

        dp[i]=min(dp[i],cal+dp[j]);
    }
   // cout<<dp[i]<<" ";
}
cout<<dp[n]<<endl;




}
/*
6 5
1 2 1 100000
1 3 1 1
2 6 1 1000
2 4 1 1
2 5 1 1
*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 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 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 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 392 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 300 KB Output is correct
17 Correct 1 ms 340 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 340 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 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 392 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 300 KB Output is correct
17 Correct 1 ms 340 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 340 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 3 ms 400 KB Output is correct
28 Correct 3 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 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 392 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 300 KB Output is correct
17 Correct 1 ms 340 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 340 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 3 ms 400 KB Output is correct
28 Correct 3 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 14 ms 412 KB Output is correct
32 Correct 14 ms 412 KB Output is correct
33 Correct 14 ms 416 KB Output is correct
34 Correct 15 ms 340 KB Output is correct
35 Correct 17 ms 424 KB Output is correct
36 Correct 14 ms 412 KB Output is correct
37 Correct 14 ms 412 KB Output is correct
38 Correct 14 ms 424 KB Output is correct
39 Correct 17 ms 416 KB Output is correct
40 Correct 14 ms 420 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 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 392 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 300 KB Output is correct
17 Correct 1 ms 340 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 340 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 3 ms 400 KB Output is correct
28 Correct 3 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 3 ms 340 KB Output is correct
31 Correct 14 ms 412 KB Output is correct
32 Correct 14 ms 412 KB Output is correct
33 Correct 14 ms 416 KB Output is correct
34 Correct 15 ms 340 KB Output is correct
35 Correct 17 ms 424 KB Output is correct
36 Correct 14 ms 412 KB Output is correct
37 Correct 14 ms 412 KB Output is correct
38 Correct 14 ms 424 KB Output is correct
39 Correct 17 ms 416 KB Output is correct
40 Correct 14 ms 420 KB Output is correct
41 Correct 373 ms 480 KB Output is correct
42 Correct 386 ms 504 KB Output is correct
43 Correct 377 ms 504 KB Output is correct
44 Correct 369 ms 504 KB Output is correct
45 Correct 372 ms 516 KB Output is correct
46 Correct 374 ms 500 KB Output is correct
47 Correct 375 ms 504 KB Output is correct
48 Correct 371 ms 504 KB Output is correct
49 Correct 375 ms 508 KB Output is correct
50 Correct 374 ms 504 KB Output is correct
51 Correct 380 ms 504 KB Output is correct
52 Correct 373 ms 468 KB Output is correct
53 Correct 377 ms 504 KB Output is correct
54 Correct 377 ms 508 KB Output is correct
55 Correct 374 ms 504 KB Output is correct