| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 917361 |
2024-01-28T02:29:26 Z |
Cookie |
Group Photo (JOI21_ho_t3) |
C++14 |
|
261 ms |
134828 KB |
#include<bits/stdc++.h>
#include<fstream>
using namespace std;
#define sz(a) (int)a.size()
#define ALL(v) v.begin(), v.end()
#define ALLR(v) v.rbegin(), v.rend()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
#define mpp make_pair
const ld PI = 3.14159265359, prec = 1e-9;;
using u128 = __uint128_t;
//const int x[4] = {1, 0, -1, 0};
//const int y[4] = {0, -1, 0, 1};
const ll mod = 1e9 + 7;
const int mxn = 1e6 + 69, mxq = 1e5 + 5, sq = 500, mxv = 1e6 + 5;
//const int base = (1 <<18);
const ll inf = 1e9 + 5, neg = -69420;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
//const int x[9] = {0, 1, 1, -1, -1, 2, -2, 2, -2};
//const inty[9] = {0, 2, -2, 2, -2, 1, 1, -1, -1};
int n;
int dp[5005], a[5005], toa[5005], inv[5005][5005], inv2[5005][5005];
void solve(){
cin >> n;
for(int i = 1; i <= n; i++){
cin >> a[i]; toa[a[i]] = i;
}
for(int i = n - 1; i >= 1; i--){
for(int j = i + 1; j <= n; j++){
inv[i][j] = inv[i + 1][j] + inv[i][j - 1] - inv[i + 1][j - 1] + (toa[i] < toa[j]);
inv2[i][j] = inv2[i + 1][j] + inv2[i][j - 1] - inv2[i + 1][j - 1] + (toa[i] > toa[j]);
}
}
for(int i = 1; i <= n; i++){
dp[i] = inf;
for(int j = i; j >= 1; j--){
int cost = inv[j][i] + inv2[1][i] - inv2[1][j - 1] - inv2[j][i];
dp[i] = min(dp[i], dp[j - 1] + cost);
}
//cout << dp[i] << " ";
}
cout << dp[n];
}
signed main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//freopen("COLLEGE.INP", "r", stdin);
//freopen("COLLEGE.OUT", "w", stdout);
int tt; tt = 1;
while(tt--){
solve();
}
return(0);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
856 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
0 ms |
604 KB |
Output is correct |
| 14 |
Correct |
0 ms |
604 KB |
Output is correct |
| 15 |
Correct |
0 ms |
604 KB |
Output is correct |
| 16 |
Correct |
0 ms |
604 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
1 ms |
604 KB |
Output is correct |
| 19 |
Correct |
1 ms |
604 KB |
Output is correct |
| 20 |
Correct |
0 ms |
604 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
856 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
0 ms |
604 KB |
Output is correct |
| 14 |
Correct |
0 ms |
604 KB |
Output is correct |
| 15 |
Correct |
0 ms |
604 KB |
Output is correct |
| 16 |
Correct |
0 ms |
604 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
1 ms |
604 KB |
Output is correct |
| 19 |
Correct |
1 ms |
604 KB |
Output is correct |
| 20 |
Correct |
0 ms |
604 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2140 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2136 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2140 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
856 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
0 ms |
604 KB |
Output is correct |
| 14 |
Correct |
0 ms |
604 KB |
Output is correct |
| 15 |
Correct |
0 ms |
604 KB |
Output is correct |
| 16 |
Correct |
0 ms |
604 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
1 ms |
604 KB |
Output is correct |
| 19 |
Correct |
1 ms |
604 KB |
Output is correct |
| 20 |
Correct |
0 ms |
604 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2140 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2136 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 31 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 32 |
Correct |
6 ms |
9280 KB |
Output is correct |
| 33 |
Correct |
6 ms |
9228 KB |
Output is correct |
| 34 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 35 |
Correct |
9 ms |
9304 KB |
Output is correct |
| 36 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 37 |
Correct |
6 ms |
9188 KB |
Output is correct |
| 38 |
Correct |
6 ms |
9312 KB |
Output is correct |
| 39 |
Correct |
6 ms |
9312 KB |
Output is correct |
| 40 |
Correct |
7 ms |
9364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
856 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
0 ms |
604 KB |
Output is correct |
| 14 |
Correct |
0 ms |
604 KB |
Output is correct |
| 15 |
Correct |
0 ms |
604 KB |
Output is correct |
| 16 |
Correct |
0 ms |
604 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
1 ms |
604 KB |
Output is correct |
| 19 |
Correct |
1 ms |
604 KB |
Output is correct |
| 20 |
Correct |
0 ms |
604 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2140 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2136 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2140 KB |
Output is correct |
| 31 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 32 |
Correct |
6 ms |
9280 KB |
Output is correct |
| 33 |
Correct |
6 ms |
9228 KB |
Output is correct |
| 34 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 35 |
Correct |
9 ms |
9304 KB |
Output is correct |
| 36 |
Correct |
6 ms |
9308 KB |
Output is correct |
| 37 |
Correct |
6 ms |
9188 KB |
Output is correct |
| 38 |
Correct |
6 ms |
9312 KB |
Output is correct |
| 39 |
Correct |
6 ms |
9312 KB |
Output is correct |
| 40 |
Correct |
7 ms |
9364 KB |
Output is correct |
| 41 |
Correct |
258 ms |
134352 KB |
Output is correct |
| 42 |
Correct |
255 ms |
134388 KB |
Output is correct |
| 43 |
Correct |
259 ms |
134828 KB |
Output is correct |
| 44 |
Correct |
254 ms |
134388 KB |
Output is correct |
| 45 |
Correct |
258 ms |
134428 KB |
Output is correct |
| 46 |
Correct |
257 ms |
134472 KB |
Output is correct |
| 47 |
Correct |
258 ms |
134368 KB |
Output is correct |
| 48 |
Correct |
257 ms |
134584 KB |
Output is correct |
| 49 |
Correct |
257 ms |
134228 KB |
Output is correct |
| 50 |
Correct |
260 ms |
134484 KB |
Output is correct |
| 51 |
Correct |
255 ms |
134224 KB |
Output is correct |
| 52 |
Correct |
255 ms |
134464 KB |
Output is correct |
| 53 |
Correct |
257 ms |
134228 KB |
Output is correct |
| 54 |
Correct |
250 ms |
134228 KB |
Output is correct |
| 55 |
Correct |
261 ms |
134224 KB |
Output is correct |
