| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 593151 |
2022-07-10T13:15:06 Z |
piOOE |
Group Photo (JOI21_ho_t3) |
C++17 |
|
157 ms |
196480 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
vector<int> a(n), reva(n);
vector<vector<int>> pl(n, vector<int>(n));
for (int i = 0; i < n; ++i) {
cin >> a[i];
--a[i];
reva[a[i]] = i;
}
for (int i = 0; i < n; ++i) {
pl[i][i] = 1;
for (int j = i + 1; j < n; ++j) {
pl[i][j] = pl[i][j - 1] + (reva[j] < reva[i]);
}
}
vector<vector<int>> dp(n, vector<int>(n + 1, 1000'000'000));
dp[n - 1][1] = 0;
for (int x = n - 2; x >= 0; --x) {
for (int cnt = 1; cnt + 1 + x <= n; ++cnt) {
dp[x][1] = min(dp[x][1], dp[x + 1][cnt] + abs(pl[x][n - 1] - 1));
}
for (int cnt = 2; x + cnt <= n; ++cnt) {
dp[x][cnt] = dp[x + 1][cnt - 1] + (pl[x][n - 1] - pl[x][x + cnt - 1]) + abs(pl[x][x + cnt - 1] - cnt);
}
}
int ans = n * n;
for (int i = 1; i <= n; ++i) {
ans = min(ans, dp[0][i]);
}
cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
320 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
320 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
320 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
212 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
596 KB |
Output is correct |
| 23 |
Correct |
1 ms |
596 KB |
Output is correct |
| 24 |
Correct |
1 ms |
628 KB |
Output is correct |
| 25 |
Correct |
1 ms |
596 KB |
Output is correct |
| 26 |
Correct |
1 ms |
596 KB |
Output is correct |
| 27 |
Correct |
1 ms |
596 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
1 ms |
596 KB |
Output is correct |
| 30 |
Correct |
1 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
320 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
212 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
596 KB |
Output is correct |
| 23 |
Correct |
1 ms |
596 KB |
Output is correct |
| 24 |
Correct |
1 ms |
628 KB |
Output is correct |
| 25 |
Correct |
1 ms |
596 KB |
Output is correct |
| 26 |
Correct |
1 ms |
596 KB |
Output is correct |
| 27 |
Correct |
1 ms |
596 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
1 ms |
596 KB |
Output is correct |
| 30 |
Correct |
1 ms |
596 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5400 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5324 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5312 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5300 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 39 |
Correct |
5 ms |
5332 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
320 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
320 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
212 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
596 KB |
Output is correct |
| 23 |
Correct |
1 ms |
596 KB |
Output is correct |
| 24 |
Correct |
1 ms |
628 KB |
Output is correct |
| 25 |
Correct |
1 ms |
596 KB |
Output is correct |
| 26 |
Correct |
1 ms |
596 KB |
Output is correct |
| 27 |
Correct |
1 ms |
596 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
1 ms |
596 KB |
Output is correct |
| 30 |
Correct |
1 ms |
596 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5400 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5324 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5312 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5300 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 39 |
Correct |
5 ms |
5332 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5332 KB |
Output is correct |
| 41 |
Correct |
150 ms |
196180 KB |
Output is correct |
| 42 |
Correct |
148 ms |
196308 KB |
Output is correct |
| 43 |
Correct |
143 ms |
196396 KB |
Output is correct |
| 44 |
Correct |
155 ms |
196328 KB |
Output is correct |
| 45 |
Correct |
144 ms |
196340 KB |
Output is correct |
| 46 |
Correct |
156 ms |
196376 KB |
Output is correct |
| 47 |
Correct |
142 ms |
196348 KB |
Output is correct |
| 48 |
Correct |
154 ms |
196380 KB |
Output is correct |
| 49 |
Correct |
147 ms |
196428 KB |
Output is correct |
| 50 |
Correct |
144 ms |
196352 KB |
Output is correct |
| 51 |
Correct |
157 ms |
196480 KB |
Output is correct |
| 52 |
Correct |
142 ms |
196428 KB |
Output is correct |
| 53 |
Correct |
147 ms |
196464 KB |
Output is correct |
| 54 |
Correct |
149 ms |
196468 KB |
Output is correct |
| 55 |
Correct |
155 ms |
196472 KB |
Output is correct |
