#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
using namespace std;
using ar = array<int, 2>;
const int64_t INF = 1ll << 30;
const int N = 5000 + 50;
int dp[N], sum[N][N], cnt[N], loc[N], n, a[N];
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n;
FOR(i, 0, n) {
cin >> a[i];
--a[i];
loc[a[i]] = i;
}
FOR(q, 0, n) FOR(i, q + 1, n) sum[q][i] = (loc[q] > loc[i]) + sum[q][i - 1];
fill(dp, dp + N, INF);
dp[0] = 0;
FOR(i, 1, n) {
int ct = 0;
for (int j = n - 1; j >= 0; --j) if (a[j] <= i)
cnt[a[j]] = ct++;
int s = 0;
for (int q = i; q >= 0; --q) {
s -= sum[q][i];
s += cnt[q];
dp[i] = min(dp[i], (q ? dp[q - 1] : 0) + s);
}
}
cout << dp[n - 1] << '\n';
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 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 |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
464 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
420 KB |
Output is correct |
| 19 |
Correct |
0 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
464 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
420 KB |
Output is correct |
| 19 |
Correct |
0 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1160 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
464 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
420 KB |
Output is correct |
| 19 |
Correct |
0 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1160 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 32 |
Correct |
4 ms |
6236 KB |
Output is correct |
| 33 |
Correct |
4 ms |
6232 KB |
Output is correct |
| 34 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 35 |
Correct |
4 ms |
6236 KB |
Output is correct |
| 36 |
Correct |
4 ms |
6356 KB |
Output is correct |
| 37 |
Correct |
4 ms |
6348 KB |
Output is correct |
| 38 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 39 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 40 |
Correct |
4 ms |
6232 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 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 |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
464 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
420 KB |
Output is correct |
| 19 |
Correct |
0 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1160 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 32 |
Correct |
4 ms |
6236 KB |
Output is correct |
| 33 |
Correct |
4 ms |
6232 KB |
Output is correct |
| 34 |
Correct |
5 ms |
6492 KB |
Output is correct |
| 35 |
Correct |
4 ms |
6236 KB |
Output is correct |
| 36 |
Correct |
4 ms |
6356 KB |
Output is correct |
| 37 |
Correct |
4 ms |
6348 KB |
Output is correct |
| 38 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 39 |
Correct |
5 ms |
6236 KB |
Output is correct |
| 40 |
Correct |
4 ms |
6232 KB |
Output is correct |
| 41 |
Correct |
132 ms |
77636 KB |
Output is correct |
| 42 |
Correct |
134 ms |
77412 KB |
Output is correct |
| 43 |
Correct |
134 ms |
77560 KB |
Output is correct |
| 44 |
Correct |
137 ms |
77648 KB |
Output is correct |
| 45 |
Correct |
138 ms |
77552 KB |
Output is correct |
| 46 |
Correct |
135 ms |
77652 KB |
Output is correct |
| 47 |
Correct |
135 ms |
77692 KB |
Output is correct |
| 48 |
Correct |
135 ms |
77648 KB |
Output is correct |
| 49 |
Correct |
134 ms |
77672 KB |
Output is correct |
| 50 |
Correct |
134 ms |
77652 KB |
Output is correct |
| 51 |
Correct |
137 ms |
77504 KB |
Output is correct |
| 52 |
Correct |
136 ms |
77480 KB |
Output is correct |
| 53 |
Correct |
133 ms |
77688 KB |
Output is correct |
| 54 |
Correct |
136 ms |
77652 KB |
Output is correct |
| 55 |
Correct |
135 ms |
77476 KB |
Output is correct |
