This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
const int N = 1e5 + 3;
const ll INF = 2e12 + 3;
int n, k;
ll dp[N][203], p[N];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> k;
for(int i = 1; i <= n; ++i){
ll a;
cin >> a;
p[i] = p[i - 1] + a;
}
for(int i = 1; i <= n; ++i){
for(int j = 1; j < i; ++j){
for(int t = 1; t < i; ++t){
dp[i][j] = max(dp[i][j], dp[t][j - 1] + p[t] * (p[i] - p[t]));
}
}
}
ll cur = dp[n][k];
cout << cur << "\n";
int poi = n - 1, end = n, cnt = k - 1;
for(; poi >= 1 && cnt >= 0; --poi){
if(dp[poi][cnt] + p[poi] * (p[end] - p[poi]) == dp[end][cnt + 1]){
cout << poi << " ";
end = poi;
cnt--;
}
}
}
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