| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 959083 |
2024-04-07T13:15:33 Z |
anton |
Group Photo (JOI21_ho_t3) |
C++17 |
|
337 ms |
196452 KB |
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int MAX_N = 5001;
int n;
int dp[MAX_N];
int vals[MAX_N];
int pos[MAX_N];
int oc_under_pref[MAX_N][MAX_N];
void precalc(){
for(int i = 0; i<=n; i++){
vector<int> oc(n, 0);
for(int j = 0; j<i; j++){
oc[vals[j]]++;
}
int cur = 0;
for(int j=0; j<=n; j++){
oc_under_pref[i][j] = cur;
if(j<n){
cur += oc[j];
}
}
}
}
int find_dp(){
dp[0] = 0;
for(int i = 0; i<n; i++){
int cur_c= 0;
for(int j = i; j<n; j++){
//cout<<"j "<<j<<" "<<pos[j]<<" "<<oc_under_pref[pos[j]][j]<<endl;
cur_c += pos[j]-oc_under_pref[pos[j]][i];
cur_c-= (oc_under_pref[n][j]-oc_under_pref[n][i]-oc_under_pref[pos[j]][j]+oc_under_pref[pos[j]][i]);
dp[j+1] =min(dp[j+1], dp[i]+cur_c);
}
}
return dp[n];
}
signed main(){
cin>>n;
for(int i = 0; i<n; i++){
cin>>vals[i];
vals[i]--;
pos[vals[i]] = i;
}
for(int i = 0; i<=n; i++){
dp[i] = 1e18;
}
precalc();
cout<<find_dp()<<endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2492 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2492 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 22 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 25 |
Correct |
1 ms |
8540 KB |
Output is correct |
| 26 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
1 ms |
8536 KB |
Output is correct |
| 28 |
Correct |
2 ms |
8792 KB |
Output is correct |
| 29 |
Correct |
1 ms |
8632 KB |
Output is correct |
| 30 |
Correct |
2 ms |
8540 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2492 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 22 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 25 |
Correct |
1 ms |
8540 KB |
Output is correct |
| 26 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
1 ms |
8536 KB |
Output is correct |
| 28 |
Correct |
2 ms |
8792 KB |
Output is correct |
| 29 |
Correct |
1 ms |
8632 KB |
Output is correct |
| 30 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 31 |
Correct |
10 ms |
33116 KB |
Output is correct |
| 32 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 33 |
Correct |
7 ms |
33332 KB |
Output is correct |
| 34 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 35 |
Correct |
8 ms |
33112 KB |
Output is correct |
| 36 |
Correct |
7 ms |
33368 KB |
Output is correct |
| 37 |
Correct |
6 ms |
33116 KB |
Output is correct |
| 38 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 39 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 40 |
Correct |
8 ms |
33300 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2400 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2492 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 22 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 25 |
Correct |
1 ms |
8540 KB |
Output is correct |
| 26 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
1 ms |
8536 KB |
Output is correct |
| 28 |
Correct |
2 ms |
8792 KB |
Output is correct |
| 29 |
Correct |
1 ms |
8632 KB |
Output is correct |
| 30 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 31 |
Correct |
10 ms |
33116 KB |
Output is correct |
| 32 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 33 |
Correct |
7 ms |
33332 KB |
Output is correct |
| 34 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 35 |
Correct |
8 ms |
33112 KB |
Output is correct |
| 36 |
Correct |
7 ms |
33368 KB |
Output is correct |
| 37 |
Correct |
6 ms |
33116 KB |
Output is correct |
| 38 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 39 |
Correct |
7 ms |
33116 KB |
Output is correct |
| 40 |
Correct |
8 ms |
33300 KB |
Output is correct |
| 41 |
Correct |
337 ms |
196248 KB |
Output is correct |
| 42 |
Correct |
281 ms |
196176 KB |
Output is correct |
| 43 |
Correct |
270 ms |
196452 KB |
Output is correct |
| 44 |
Correct |
271 ms |
196328 KB |
Output is correct |
| 45 |
Correct |
263 ms |
196428 KB |
Output is correct |
| 46 |
Correct |
261 ms |
196364 KB |
Output is correct |
| 47 |
Correct |
280 ms |
196368 KB |
Output is correct |
| 48 |
Correct |
271 ms |
196180 KB |
Output is correct |
| 49 |
Correct |
275 ms |
196364 KB |
Output is correct |
| 50 |
Correct |
274 ms |
196180 KB |
Output is correct |
| 51 |
Correct |
268 ms |
196360 KB |
Output is correct |
| 52 |
Correct |
281 ms |
196180 KB |
Output is correct |
| 53 |
Correct |
272 ms |
196360 KB |
Output is correct |
| 54 |
Correct |
274 ms |
196364 KB |
Output is correct |
| 55 |
Correct |
268 ms |
196364 KB |
Output is correct |
