#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define pb push_back
#define eb emplace_back
#define pii pair<int,int>
#define X first
#define Y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
void abc() {cout << endl;}
template <typename T, typename ...U> void abc(T i, U ...j) {
cout << i << ' ', abc(j...);
}
template <typename T> void printv(T l, T r) {
for (; l != r; ++l) cout << *l << " \n"[l + 1 == r];
}
#ifdef Doludu
#define test(x...) abc("[" + string(#x) + "]", x)
#define owo freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#else
#define test(x...) void(0)
#define owo ios::sync_with_stdio(false), cin.tie(0)
#endif
const int N = 200000;
int main () {
owo;
int n;
cin >> n;
vector <int> p(n);
for (int i = 0; i < n; ++i)
cin >> p[i], --p[i];
vector <int> dp(n + 1, 1 << 30);
vector <vector <int>> cost(n + 1, vector <int> (n + 1, 0));
vector <int> inversion(n);
for (int r = 1; r <= n; ++r) {
vector <int> ord;
for (int i = 0; i < n; ++i) if (p[i] < r)
ord.pb(p[i]);
for (int i = 0; i < ord.size(); ++i) {
inversion[ord[i]] = 0;
for (int j = 0; j < i; ++j)
inversion[ord[i]] += ord[j] > ord[i];
}
for (int l = r - 1; ~l; --l) {
int pos = find(all(ord), l) - ord.begin();
cost[l][r] = cost[l + 1][r] + int(ord.size()) - pos - 1 - inversion[l];
}
}
dp[0] = 0;
for (int i = 1; i <= n; ++i) {
for (int j = 0; j < i; ++j) {
// max at postion j
dp[i] = min(dp[i], dp[j] + cost[j][i]);
}
}
cout << dp[n] << endl;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
41 | for (int i = 0; i < ord.size(); ++i) {
| ~~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
6 ms |
472 KB |
Output is correct |
| 22 |
Correct |
5 ms |
460 KB |
Output is correct |
| 23 |
Correct |
5 ms |
460 KB |
Output is correct |
| 24 |
Correct |
5 ms |
460 KB |
Output is correct |
| 25 |
Correct |
5 ms |
460 KB |
Output is correct |
| 26 |
Correct |
5 ms |
460 KB |
Output is correct |
| 27 |
Correct |
5 ms |
472 KB |
Output is correct |
| 28 |
Correct |
5 ms |
460 KB |
Output is correct |
| 29 |
Correct |
5 ms |
460 KB |
Output is correct |
| 30 |
Correct |
5 ms |
476 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
6 ms |
472 KB |
Output is correct |
| 22 |
Correct |
5 ms |
460 KB |
Output is correct |
| 23 |
Correct |
5 ms |
460 KB |
Output is correct |
| 24 |
Correct |
5 ms |
460 KB |
Output is correct |
| 25 |
Correct |
5 ms |
460 KB |
Output is correct |
| 26 |
Correct |
5 ms |
460 KB |
Output is correct |
| 27 |
Correct |
5 ms |
472 KB |
Output is correct |
| 28 |
Correct |
5 ms |
460 KB |
Output is correct |
| 29 |
Correct |
5 ms |
460 KB |
Output is correct |
| 30 |
Correct |
5 ms |
476 KB |
Output is correct |
| 31 |
Correct |
267 ms |
2840 KB |
Output is correct |
| 32 |
Correct |
264 ms |
2848 KB |
Output is correct |
| 33 |
Correct |
271 ms |
2764 KB |
Output is correct |
| 34 |
Correct |
267 ms |
2764 KB |
Output is correct |
| 35 |
Correct |
266 ms |
2860 KB |
Output is correct |
| 36 |
Correct |
269 ms |
2856 KB |
Output is correct |
| 37 |
Correct |
266 ms |
2868 KB |
Output is correct |
| 38 |
Correct |
269 ms |
2976 KB |
Output is correct |
| 39 |
Correct |
266 ms |
2864 KB |
Output is correct |
| 40 |
Correct |
268 ms |
2764 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
6 ms |
472 KB |
Output is correct |
| 22 |
Correct |
5 ms |
460 KB |
Output is correct |
| 23 |
Correct |
5 ms |
460 KB |
Output is correct |
| 24 |
Correct |
5 ms |
460 KB |
Output is correct |
| 25 |
Correct |
5 ms |
460 KB |
Output is correct |
| 26 |
Correct |
5 ms |
460 KB |
Output is correct |
| 27 |
Correct |
5 ms |
472 KB |
Output is correct |
| 28 |
Correct |
5 ms |
460 KB |
Output is correct |
| 29 |
Correct |
5 ms |
460 KB |
Output is correct |
| 30 |
Correct |
5 ms |
476 KB |
Output is correct |
| 31 |
Correct |
267 ms |
2840 KB |
Output is correct |
| 32 |
Correct |
264 ms |
2848 KB |
Output is correct |
| 33 |
Correct |
271 ms |
2764 KB |
Output is correct |
| 34 |
Correct |
267 ms |
2764 KB |
Output is correct |
| 35 |
Correct |
266 ms |
2860 KB |
Output is correct |
| 36 |
Correct |
269 ms |
2856 KB |
Output is correct |
| 37 |
Correct |
266 ms |
2868 KB |
Output is correct |
| 38 |
Correct |
269 ms |
2976 KB |
Output is correct |
| 39 |
Correct |
266 ms |
2864 KB |
Output is correct |
| 40 |
Correct |
268 ms |
2764 KB |
Output is correct |
| 41 |
Execution timed out |
5068 ms |
98316 KB |
Time limit exceeded |
| 42 |
Halted |
0 ms |
0 KB |
- |
