#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 dp[5010];
signed main(){
cin>>n;
for(int i=1;i<=n;i++){
cin>>ar[i];
}
dp[0]=0;
for(int i=1;i<=n;i++){
for(int j=0;j<=i-1;j++){
int cal=dp[j];
for(int a=1;a<=5000;a++){
bit[a]=0;
}
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);
}
}
if(j==0){dp[i]=cal;}
dp[i]=min(dp[i],cal);
}
// 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
*/
# |
결과 |
실행 시간 |
메모리 |
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 |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
308 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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
308 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 |
304 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
312 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 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
308 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 |
304 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
312 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 |
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 |
34 ms |
304 KB |
Output is correct |
22 |
Correct |
35 ms |
340 KB |
Output is correct |
23 |
Correct |
34 ms |
340 KB |
Output is correct |
24 |
Correct |
35 ms |
340 KB |
Output is correct |
25 |
Correct |
35 ms |
340 KB |
Output is correct |
26 |
Correct |
35 ms |
308 KB |
Output is correct |
27 |
Correct |
35 ms |
340 KB |
Output is correct |
28 |
Correct |
35 ms |
340 KB |
Output is correct |
29 |
Correct |
34 ms |
340 KB |
Output is correct |
30 |
Correct |
35 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
308 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 |
304 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
312 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 |
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 |
34 ms |
304 KB |
Output is correct |
22 |
Correct |
35 ms |
340 KB |
Output is correct |
23 |
Correct |
34 ms |
340 KB |
Output is correct |
24 |
Correct |
35 ms |
340 KB |
Output is correct |
25 |
Correct |
35 ms |
340 KB |
Output is correct |
26 |
Correct |
35 ms |
308 KB |
Output is correct |
27 |
Correct |
35 ms |
340 KB |
Output is correct |
28 |
Correct |
35 ms |
340 KB |
Output is correct |
29 |
Correct |
34 ms |
340 KB |
Output is correct |
30 |
Correct |
35 ms |
456 KB |
Output is correct |
31 |
Correct |
1881 ms |
340 KB |
Output is correct |
32 |
Correct |
1883 ms |
344 KB |
Output is correct |
33 |
Correct |
1845 ms |
344 KB |
Output is correct |
34 |
Correct |
1904 ms |
464 KB |
Output is correct |
35 |
Correct |
1857 ms |
468 KB |
Output is correct |
36 |
Correct |
1871 ms |
344 KB |
Output is correct |
37 |
Correct |
1848 ms |
348 KB |
Output is correct |
38 |
Correct |
1844 ms |
340 KB |
Output is correct |
39 |
Correct |
1976 ms |
356 KB |
Output is correct |
40 |
Correct |
1881 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
308 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 |
304 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
312 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 |
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 |
34 ms |
304 KB |
Output is correct |
22 |
Correct |
35 ms |
340 KB |
Output is correct |
23 |
Correct |
34 ms |
340 KB |
Output is correct |
24 |
Correct |
35 ms |
340 KB |
Output is correct |
25 |
Correct |
35 ms |
340 KB |
Output is correct |
26 |
Correct |
35 ms |
308 KB |
Output is correct |
27 |
Correct |
35 ms |
340 KB |
Output is correct |
28 |
Correct |
35 ms |
340 KB |
Output is correct |
29 |
Correct |
34 ms |
340 KB |
Output is correct |
30 |
Correct |
35 ms |
456 KB |
Output is correct |
31 |
Correct |
1881 ms |
340 KB |
Output is correct |
32 |
Correct |
1883 ms |
344 KB |
Output is correct |
33 |
Correct |
1845 ms |
344 KB |
Output is correct |
34 |
Correct |
1904 ms |
464 KB |
Output is correct |
35 |
Correct |
1857 ms |
468 KB |
Output is correct |
36 |
Correct |
1871 ms |
344 KB |
Output is correct |
37 |
Correct |
1848 ms |
348 KB |
Output is correct |
38 |
Correct |
1844 ms |
340 KB |
Output is correct |
39 |
Correct |
1976 ms |
356 KB |
Output is correct |
40 |
Correct |
1881 ms |
344 KB |
Output is correct |
41 |
Execution timed out |
5056 ms |
384 KB |
Time limit exceeded |
42 |
Halted |
0 ms |
0 KB |
- |