oj.uz

Submission #827209

# Submission time Handle Problem Language Result Execution time Memory
827209 2023-08-16T09:57:26 Z jmyszka2007 Group Photo (JOI21_ho_t3) C++17
44 / 100
 5000 ms 15616 KB 
#include <bits/stdc++.h>
#include <fstream>
using namespace std;
template<class A, class B>
ostream& operator<<(ostream& o, const pair<A, B>& p) {return o << '(' << p.first << ", " << p.second << ')';}
template<size_t Index = 0, typename... Types>
ostream& printTupleElements(ostream& o, const tuple<Types...>& t) {if constexpr (Index < sizeof...(Types)){if(Index > 0){o << ", ";}o << get<Index>(t);printTupleElements<Index + 1>(o, t);}return o;}
template<typename... Types>
ostream& operator<<(ostream& o, const tuple<Types...>& t){o << "(";printTupleElements(o, t);return o << ")";}
template<class T>
auto operator<<(ostream& o, const T& x) -> decltype(x.end(), o){o << '{';bool first = true;for (const auto& e : x){if (!first){o << ", ";}o << e;first = false;} return o << '}';}
//#define DEBUG
#ifdef DEBUG
#define fastio()
#define debug(x...) cerr << "[" #x "]: ", [](auto... $) {((cerr << $ << "; "), ...); }(x), cerr << '\n'
#define check(x) if (!(x)) { cerr << "Check failed: " << #x << " in line " << __LINE__ << endl; exit(1); }
#else
#define fastio() ios_base::sync_with_stdio(0); cin.tie(0);
#define debug(...)
#define check(x) 
#endif
typedef long long ll;
#define pi pair<int, int>
#define pl pair<ll, ll>
#define st first
#define nd second
#define vi vector<int>
#define vll vector<ll>
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
ll get_sum(vector<vll>sum, int x, int l, int r) {
	if(l > r) {
		return 0ll;
	}
	return sum[x][r] - sum[x][l - 1];
}
ll get_sum2(vll sum, int l, int r) {
	if(l > r) {
		return 0ll;
	}
	return sum[r] - sum[l - 1];
}
void solve() {
	//ifstream cin("nazwa.in");
	//ofstream cout("nazwa.out");
	int n;
	cin >> n;
	vi tab(n + 1), pos(n + 1);
	for(int i = 1; i <= n; i++) {
		cin >> tab[i];
		pos[tab[i]] = i;
	}
	vector<vll>sum1(n + 1, vll(n + 1, 0));
	vector<vll>sum2(n + 1, vll(n + 1, 0));
	vll sum3(n + 1, 0);
	for(int i = 1; i <= n; i++) {
		vll rgt1(n + 1, 0), rgt2(n + 1, 0);
		for(int j = i; j <= n; j++) {
			rgt1[tab[j]]++;
			if(tab[j] > tab[i]) {
				rgt2[tab[j]]++;
			}
		}
		for(int j = 1; j <= n; j++) {
			rgt1[j] += rgt1[j - 1];
			sum1[j][tab[i]] += rgt1[j];
		}
		for(int j = tab[i] + 1; j <= n; j++) {
			rgt2[j] += rgt2[j - 1];
			sum2[j][tab[i]] += rgt2[j];
		}
		sum3[tab[i]] += i;
	}
	debug(sum2[n]);
	for(int j = 1; j <= n; j++) {
		for(int i = 1; i <= n; i++) {
			sum1[j][i] += sum1[j][i - 1];
			sum2[j][i] += sum2[j][i - 1];
		}
		sum3[j] += sum3[j - 1];
	}
	vll dp(n + 1, 1e18);
	dp[0] = 0;
	for(int i = 1; i <= n; i++) {
		for(int j = i; j >= 1; j--) {
			dp[i] = min(dp[i], dp[j - 1] + (sum1[j - 1][i] - sum1[j - 1][j - 1]) + get_sum(sum2, i, j, i) + get_sum2(sum3, j, i) - ((ll)(i + 1 - j) * (ll)(j + i) / 2));
		}
	}
	debug(dp);
	cout << dp[n] << '\n';
}
int main() {
	fastio();
	int t;
	//cin >> t;
	t = 1;	
	while(t--) {
		solve();
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
13 Correct 0 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
13 Correct 0 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1225 ms 4776 KB Output is correct
22 Correct 1252 ms 1416 KB Output is correct
23 Correct 1224 ms 1344 KB Output is correct
24 Correct 1247 ms 1404 KB Output is correct
25 Correct 1243 ms 1380 KB Output is correct
26 Correct 1223 ms 1308 KB Output is correct
27 Correct 1256 ms 1292 KB Output is correct
28 Correct 1348 ms 1428 KB Output is correct
29 Correct 1241 ms 1360 KB Output is correct
30 Correct 1302 ms 1416 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
13 Correct 0 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1225 ms 4776 KB Output is correct
22 Correct 1252 ms 1416 KB Output is correct
23 Correct 1224 ms 1344 KB Output is correct
24 Correct 1247 ms 1404 KB Output is correct
25 Correct 1243 ms 1380 KB Output is correct
26 Correct 1223 ms 1308 KB Output is correct
27 Correct 1256 ms 1292 KB Output is correct
28 Correct 1348 ms 1428 KB Output is correct
29 Correct 1241 ms 1360 KB Output is correct
30 Correct 1302 ms 1416 KB Output is correct
31 Execution timed out 5066 ms 15616 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
13 Correct 0 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1225 ms 4776 KB Output is correct
22 Correct 1252 ms 1416 KB Output is correct
23 Correct 1224 ms 1344 KB Output is correct
24 Correct 1247 ms 1404 KB Output is correct
25 Correct 1243 ms 1380 KB Output is correct
26 Correct 1223 ms 1308 KB Output is correct
27 Correct 1256 ms 1292 KB Output is correct
28 Correct 1348 ms 1428 KB Output is correct
29 Correct 1241 ms 1360 KB Output is correct
30 Correct 1302 ms 1416 KB Output is correct
31 Execution timed out 5066 ms 15616 KB Time limit exceeded
32 Halted 0 ms 0 KB -