Submission #30856

#	Time	Username	Problem	Language	Result	Execution time	Memory
30856		Navick	Split the sequence (APIO14_sequence)	C++14	50 / 100	186 ms	4672 KiB

sequence

#include <bits/stdc++.h>
#define F first
#define S second
#define pii pair<int, int>
#define pb push_back

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 1e3 + 10, K = 210;
const ll INF = 1e18;

ll dp[N][K], ps[N];
int par[N][K];

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n, k; cin >> n >> k;
	++k;
	for(int i=0; i<n; i++){
		int x; cin >> x;
		ps[i + 1] = ps[i] + x;
	}

	for(int j=2; j<=k; j++)
		for(int i=1; i<=n; i++){
			dp[i][j] = -INF;
			for(int c=i-1; c>0; c--){
				if(dp[i][j] < (ps[i] - ps[c]) * ps[c] + dp[c][j - 1])
					par[i][j] = c;
				dp[i][j] = max(dp[i][j], (ps[i] - ps[c]) * ps[c] + dp[c][j - 1]);
			}
		}

	cout << dp[n][k] << '\n';
	
	while(k > 1){
		cout << par[n][k] << ' ';
		n = par[n][k];
		--k;
	}cout << endl;


}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 0 / 21
• Subtask 6: 0 / 29