This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //
// Nhan qua khong no chung ta thu gi //
// Vay nen dung oan han //
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //
// //
// _oo0oo_ //
// o8888888o //
// 88" . "88 //
// (| -_- |) //
// 0\ = /0 //
// ___/`---'\___ //
// .' \\| |// '. //
// / \\||| : |||// \ //
// / _||||| -:- |||||- \ //
// | | \\\ - /// | | //
// | \_| ''\---/'' |_/ | //
// \ .-\__ '-' ___/-. / //
// ___'. .' /--.--\ `. .'___ //
// ."" '< `.___\_<|>_/___.' >' "". //
// | | : `- \`.;`\ _ /`;.`/ - ` : | | //
// \ \ `_. \_ __\ /__ _/ .-` / / //
// =====`-.____`.___ \_____/___.-`___.-'===== //
// `=---=' //
// //
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //
// Duc Phat noi day phu ho Code con chay khong Bug //
// Nam mo a di da phat //
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //
#include<bits/stdc++.h>
#ifdef LOCAL
#include "D:\debug.h"
#else
#define cebug(...) "Orz_chUoNgnn"
#endif
using namespace std;
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ii pair<int, int>
#define vi vector<int>
#define vll vector<ll>
#define vii vector<ii>
#define cd complex<double>
const ll mod = 1e9 + 7;
const ll INF = 1e18L + 5;
const double PI = acos(-1);
const int block = 320;
const int N = 1e5;
int tc, tt = 1;
int n, k;
ll a[N + 1], ps[N + 1];
ll dp[2][N + 1];
int trace[203][N + 1];
void dnc(int lvl, int l, int r, int optl, int optr) {
if(l > r) return;
pair<ll, int> best = {-INF, 0};
int mid = (l + r)/2;
for(int i=min(optr, mid); i>=max(2, optl); i--)
if(best.fi <= dp[0][i - 1] + (ps[mid] - ps[i - 1]) * (ps[n] - ps[mid])) {
best.fi = dp[0][i - 1] + (ps[mid] - ps[i - 1]) * (ps[n] - ps[mid]);
best.se = i;
}
trace[lvl][mid] = best.se;
dp[1][mid] = best.fi;
dnc(lvl, l, mid - 1, optl, best.se);
dnc(lvl, mid + 1, r, best.se, optr);
}
void solve() {
cin>>n>>k;
for(int i=1; i<=n; i++) cin>>a[i];
for(int i=1; i<=n; i++) ps[i] = ps[i - 1] + a[i];
for(int i=1; i<=n; i++)
dp[0][i] = ps[i] * (ps[n] - ps[i]);
for(int i=2; i<=k+1; i++) {
dnc(i, 1, n, 1, n);
for(int j=0; j<=n; j++) {
dp[0][j] = dp[1][j];
dp[1][j] = 0;
}
}
cout<<dp[0][n]<<'\n';
int cur = n;
vi f;
for(int i=k; i>=1; i--) {
cur = trace[i + 1][cur] - 1;
f.pb(cur);
}
reverse(f.begin(), f.end());
for(auto x: f)
cout<<x<<' ';
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
// freopen(".INP", "r", stdin);
// freopen(".OUT", "w", stdout);
for(int tc=1; tc<=tt; tc++) solve();
cerr<<"\nTime elapsed: "<<1000.0*clock()/CLOCKS_PER_SEC<<" ms.\n";
return 0;
}
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |