oj.uz

Submission #826649

# Submission time Handle Problem Language Result Execution time Memory
826649 2023-08-15T19:02:28 Z jmyszka2007 Group Photo (JOI21_ho_t3) C++17
44 / 100
 5000 ms 20684 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] + get_sum(sum1, j - 1, j, i) + 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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 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 212 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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 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 212 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 2867 ms 1716 KB Output is correct
22 Correct 2938 ms 2908 KB Output is correct
23 Correct 2977 ms 1664 KB Output is correct
24 Correct 3115 ms 1872 KB Output is correct
25 Correct 3048 ms 1716 KB Output is correct
26 Correct 2938 ms 3196 KB Output is correct
27 Correct 3009 ms 1628 KB Output is correct
28 Correct 3138 ms 1620 KB Output is correct
29 Correct 3020 ms 1768 KB Output is correct
30 Correct 3127 ms 2952 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 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 212 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 2867 ms 1716 KB Output is correct
22 Correct 2938 ms 2908 KB Output is correct
23 Correct 2977 ms 1664 KB Output is correct
24 Correct 3115 ms 1872 KB Output is correct
25 Correct 3048 ms 1716 KB Output is correct
26 Correct 2938 ms 3196 KB Output is correct
27 Correct 3009 ms 1628 KB Output is correct
28 Correct 3138 ms 1620 KB Output is correct
29 Correct 3020 ms 1768 KB Output is correct
30 Correct 3127 ms 2952 KB Output is correct
31 Execution timed out 5073 ms 20684 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 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 212 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 2867 ms 1716 KB Output is correct
22 Correct 2938 ms 2908 KB Output is correct
23 Correct 2977 ms 1664 KB Output is correct
24 Correct 3115 ms 1872 KB Output is correct
25 Correct 3048 ms 1716 KB Output is correct
26 Correct 2938 ms 3196 KB Output is correct
27 Correct 3009 ms 1628 KB Output is correct
28 Correct 3138 ms 1620 KB Output is correct
29 Correct 3020 ms 1768 KB Output is correct
30 Correct 3127 ms 2952 KB Output is correct
31 Execution timed out 5073 ms 20684 KB Time limit exceeded
32 Halted 0 ms 0 KB -