// Problem: P2 - Split the Sequence
// Contest: DMOJ - APIO '14
// URL: https://dmoj.ca/problem/apio14p2
// Memory Limit: 128 MB
// Time Limit: 1000 ms
//
// Powered by CP Editor (https://cpeditor.org)
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Solution
// Webbly, 27.01.2023
//
//
// Arsen ne katai
//
//
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include<bits/stdc++.h>
/**
#include <algorithm>
#include <iostream>
#include <vector>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <time.h>
*/
//#pragma GCC optimize("O3")
//#pragma GCC optimize("fast-loops")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
/**
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("Ofast,no-stack-protector")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC target("avx")
*/
#define ll long long
#define kebzaro ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pb push_back
#define mp make_pair
#define all(x) x.begin(),x.end()
#define flush cout.flush()
using namespace std;
const ll mod = (ll)1e9 + 7, mod3 = 998244353, inf = (ll)2e15, P = 31;
void judge(string name){
if (name.size()){
freopen((name + ".in").c_str(), "r", stdin);
freopen((name + "out").c_str(), "w", stdout);
}
}
ll rnd(){
ll x = rand();
return rand() ^ x;
}
ll binpow (ll a, ll b){
ll ans = 1;
while(b){
if (b & 1){
ans *= a;
ans %= mod;
}
b >>= 1;
a *= a;
a %= mod;
}
return ans;
}
ll gcd(ll a, ll b){
return (b ? gcd(b, a % b) : a);
}
ll lcm(ll a, ll b){
return a / gcd(a, b) * b;
}
struct tr{
ll four, seven, inc, dec;
};
struct T{
ll l, r, val, ind;
};
ll n, m, k, a[500005], to[500005][205], p[500005], dp[500005][205];
void sarsen(){
cin >> n >> k;
for (ll i = 1; i <= n; i++){
cin >> a[i];
p[i] = p[i - 1] + a[i];
}
for (ll i = 1; i <= n; i++){
dp[i][1] = p[i] * (p[n] - p[i]);
}
for (ll i = 2; i <= k; i++){
for (ll j = i; j < n; j++){
for (ll t = 1; t < j; t++){
if (dp[t][i - 1] + (p[n] - p[j]) * (p[j] - p[t]) > dp[j][i]) to[j][i] = t;
dp[j][i] = max(dp[j][i], dp[t][i - 1] + (p[n] - p[j]) * (p[j] - p[t]));
}
}
}
ll from = 1;
for (ll i = k; i <= n; i++){
if (dp[i][k] > dp[n][k]) from = i;
dp[n][k] = max(dp[n][k], dp[i][k]);
}
cout << dp[n][k] << '\n';
vector <ll> ans;
while(from != 0){
ans.pb(from);
from = to[from][k--];
}
reverse(all(ans));
for (auto i : ans) cout << i << ' ';
}
int main(){
kebzaro
judge("");
ll TT = 1, tests = 1;
//cin >> TT;
while(TT--){
//cout << "Case " << tests << ": ";
sarsen();
//tests++;
}
return 0;
}
/**
*/
Compilation message (stderr)
sequence.cpp: In function 'void judge(std::string)':
sequence.cpp:95:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
95 | freopen((name + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sequence.cpp:96:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
96 | freopen((name + "out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 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... |