#include <bits/stdc++.h>
//ako ovaj vaso daso misli da me pobedjuje.....
using namespace std;
#define int long long
#define f first
#define s second
const int N = 5010;
int dp[N], a[N], n, cost[N][N], fenw[N], pos[N];
//cost[i][j] -> prvih i je reseno i ja pocinjem od j
//prvi broj je i + 1
void add(int v, int val) {
for (int i = v;i < N;i += (i & -i))
fenw[i] += val;
}
int get(int v) {
int res = 0;
for (int i = v;i > 0;i -= (i & -i))
res += fenw[i];
return res;
}
void solve() {
for (int i = 1;i <= n;i++) {
int s = 0;
vector<int> p(n + 1);
for (int j = n;j >= 1;j--) {
if (a[j] < i)
s++;
else
p[a[j]] = pos[a[j]] + s;
}
for (int j = i;j <= n;j++) {
cost[i][j] = cost[i][j - 1] + p[j] - i - get(p[j]);
add(1, 1);
add(p[j] + 1, -1);
}
for (auto &i : fenw)
i = 0;
}
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int tt = 1;
//cin >> tt;
while (tt--) {
cin >> n;
for (int i = 1;i <= n;i++) {
dp[i] = 1e9;
cin >> a[i];
pos[a[i]] = i;
}
solve();
for (int i = 1;i <= n;i++) {
for (int j = i - 1;j >= 0;j--)
dp[i] = min(dp[i], dp[j] + cost[j + 1][i]);
}
cout << dp[n];
}
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
1 ms |
600 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
604 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
1 ms |
600 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
604 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
3 ms |
1272 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1372 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
1 ms |
600 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
604 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
3 ms |
1272 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 32 |
Correct |
13 ms |
6228 KB |
Output is correct |
| 33 |
Correct |
14 ms |
6216 KB |
Output is correct |
| 34 |
Correct |
16 ms |
6236 KB |
Output is correct |
| 35 |
Correct |
14 ms |
6072 KB |
Output is correct |
| 36 |
Correct |
13 ms |
6148 KB |
Output is correct |
| 37 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 38 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 39 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 40 |
Correct |
13 ms |
6236 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
1 ms |
600 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
604 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
3 ms |
1272 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 32 |
Correct |
13 ms |
6228 KB |
Output is correct |
| 33 |
Correct |
14 ms |
6216 KB |
Output is correct |
| 34 |
Correct |
16 ms |
6236 KB |
Output is correct |
| 35 |
Correct |
14 ms |
6072 KB |
Output is correct |
| 36 |
Correct |
13 ms |
6148 KB |
Output is correct |
| 37 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 38 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 39 |
Correct |
13 ms |
6232 KB |
Output is correct |
| 40 |
Correct |
13 ms |
6236 KB |
Output is correct |
| 41 |
Correct |
489 ms |
141048 KB |
Output is correct |
| 42 |
Correct |
489 ms |
141264 KB |
Output is correct |
| 43 |
Correct |
484 ms |
141404 KB |
Output is correct |
| 44 |
Correct |
486 ms |
141140 KB |
Output is correct |
| 45 |
Correct |
491 ms |
141208 KB |
Output is correct |
| 46 |
Correct |
501 ms |
141340 KB |
Output is correct |
| 47 |
Correct |
483 ms |
141340 KB |
Output is correct |
| 48 |
Correct |
489 ms |
141308 KB |
Output is correct |
| 49 |
Correct |
486 ms |
141544 KB |
Output is correct |
| 50 |
Correct |
484 ms |
141140 KB |
Output is correct |
| 51 |
Correct |
488 ms |
141340 KB |
Output is correct |
| 52 |
Correct |
497 ms |
141552 KB |
Output is correct |
| 53 |
Correct |
493 ms |
141296 KB |
Output is correct |
| 54 |
Correct |
490 ms |
141316 KB |
Output is correct |
| 55 |
Correct |
498 ms |
141280 KB |
Output is correct |
