| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 891815 |
2023-12-24T06:04:54 Z |
LCJLY |
Group Photo (JOI21_ho_t3) |
C++14 |
|
5000 ms |
196904 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << " " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << " " << j << " " << #i << " " << q << " " << #p << endl;
#define show4(x,y) for(auto it:x) cout << it << " "; cout << #y << endl;
typedef pair<int,int>pii;
typedef pair<pii,pii>pi2;
int prefix[5005][5005]; //pos val
int arr[5005];
int pos[5005];
int n=0;
int query(int l, int r, int val, int val2){
if(val2<val) return 0;
if(r<l) return 0;
int hold= prefix[r][val2]-prefix[r][val-1]-prefix[l-1][val2]+prefix[l-1][val-1];
//show2(l,l,r,r);
//show3(val,val,val2,val2,hold,hold);
return hold;
}
int memo[5005];
int dp(int index){
if(index==n+1) return 0;
if(memo[index]!=-1) return memo[index];
int ans=INT_MAX;
for(int x=index;x<=n;x++){
int cost=0;
for(int y=index;y<=x;y++){
//outside
cost+=query(1,pos[y],x+1,n);
//inside inversion
cost+=query(1,pos[y],index,y-1);
//show3(y,y,pos[y],pos[y],cost,cost);
}
int take=dp(x+1);
//show3(index,index,x,x,cost,cost);
//show(take,take);
ans=min(ans,take+cost);
}
return memo[index]=ans;
}
void solve(){
cin >> n;
for(int x=1;x<=n;x++){
cin >> arr[x];
prefix[x][arr[x]]=1;
pos[arr[x]]=x;
}
for(int x=1;x<=n;x++){
for(int y=1;y<=n;y++){
prefix[x][y]+=prefix[x-1][y]+prefix[x][y-1]-prefix[x-1][y-1];
}
}
memset(memo,-1,sizeof(memo));
cout << dp(1);
}
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
//freopen("in.txt", "r", stdin);
int t=1;
//cin >> t;
while(t--){
solve();
}
}
| # |
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 |
2 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 |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2524 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 |
2396 KB |
Output is correct |
| # |
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 |
2 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 |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2524 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 |
2396 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 |
2396 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 |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
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 |
2 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 |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2524 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 |
2396 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 |
2396 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 |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
6 ms |
8536 KB |
Output is correct |
| 22 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
5 ms |
8536 KB |
Output is correct |
| 25 |
Correct |
5 ms |
8656 KB |
Output is correct |
| 26 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 28 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 29 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 30 |
Correct |
5 ms |
8736 KB |
Output is correct |
| # |
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 |
2 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 |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2524 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 |
2396 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 |
2396 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 |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
6 ms |
8536 KB |
Output is correct |
| 22 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
5 ms |
8536 KB |
Output is correct |
| 25 |
Correct |
5 ms |
8656 KB |
Output is correct |
| 26 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 28 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 29 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 30 |
Correct |
5 ms |
8736 KB |
Output is correct |
| 31 |
Correct |
260 ms |
33368 KB |
Output is correct |
| 32 |
Correct |
281 ms |
33620 KB |
Output is correct |
| 33 |
Correct |
283 ms |
33412 KB |
Output is correct |
| 34 |
Correct |
268 ms |
33368 KB |
Output is correct |
| 35 |
Correct |
266 ms |
33416 KB |
Output is correct |
| 36 |
Correct |
284 ms |
33372 KB |
Output is correct |
| 37 |
Correct |
277 ms |
33624 KB |
Output is correct |
| 38 |
Correct |
265 ms |
33368 KB |
Output is correct |
| 39 |
Correct |
265 ms |
33368 KB |
Output is correct |
| 40 |
Correct |
281 ms |
33416 KB |
Output is correct |
| # |
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 |
2 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 |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2524 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 |
2396 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 |
2396 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 |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
6 ms |
8536 KB |
Output is correct |
| 22 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 23 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 24 |
Correct |
5 ms |
8536 KB |
Output is correct |
| 25 |
Correct |
5 ms |
8656 KB |
Output is correct |
| 26 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 27 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 28 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 29 |
Correct |
5 ms |
8540 KB |
Output is correct |
| 30 |
Correct |
5 ms |
8736 KB |
Output is correct |
| 31 |
Correct |
260 ms |
33368 KB |
Output is correct |
| 32 |
Correct |
281 ms |
33620 KB |
Output is correct |
| 33 |
Correct |
283 ms |
33412 KB |
Output is correct |
| 34 |
Correct |
268 ms |
33368 KB |
Output is correct |
| 35 |
Correct |
266 ms |
33416 KB |
Output is correct |
| 36 |
Correct |
284 ms |
33372 KB |
Output is correct |
| 37 |
Correct |
277 ms |
33624 KB |
Output is correct |
| 38 |
Correct |
265 ms |
33368 KB |
Output is correct |
| 39 |
Correct |
265 ms |
33368 KB |
Output is correct |
| 40 |
Correct |
281 ms |
33416 KB |
Output is correct |
| 41 |
Execution timed out |
5058 ms |
196904 KB |
Time limit exceeded |
| 42 |
Halted |
0 ms |
0 KB |
- |
