Submission #876270

#	Time	Username	Problem	Language	Result	Execution time	Memory
876270		Beerus13	Split the sequence (APIO14_sequence)	C++14	39 / 100	2087 ms	131072 KiB

sequence

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int ar = 1e5 + 5;

int n, k;
ll sum[ar], pos[205][ar], dp[205][ar];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> k;
    for(int i = 1; i <= n; ++i) {
        int x; cin >> x;
         sum[i] = sum[i - 1] + x;
    }
    for(int i = 1; i <= k; ++i) {
        for(int j = 1; j <= n; ++j) {
            for(int h = 0; h < j; ++h) {
                dp[i][j] = max(dp[i][j], dp[i - 1][h] + (sum[j] - sum[h]) * (sum[n] - sum[j]));
                if(dp[i][j] == dp[i - 1][h] + (sum[j] - sum[h]) * (sum[n] - sum[j])) pos[i][j] = h;
            }
        }
    }
    ll mx = -1, ind = 0;
    for(int i = k; i <= n; ++i) {
        if(dp[k][i] > mx) mx = dp[k][i], ind = i;
    }
    cout << mx << '\n';
    for(int i = k; i; --i) {
        cout << ind << ' ';
        ind = pos[i][ind];
    }
}

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