Submission #569450

#	Time	Username	Problem	Language	Result	Execution time	Memory
569450		chirathnirodha	Split the sequence (APIO14_sequence)	C++17	50 / 100	2081 ms	54096 KiB

sequence

//Coded by Chirath Nirodha
#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;
using namespace std;
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define P push
#define I insert
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
//typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;
const ll mod=1e9+7;
inline void io(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}
ll n,k;
ll a[100000];
ll arr[100000][210];
ll brr[100000][210];
ll sum[100000];
ll rec(ll x,ll y){
    if(y==1){
        arr[x][y]=0;
        return 0;
    }
    if(arr[x][y]!=0)return arr[x][y];
    for(int i=y-2;i<x;i++){
        ll temp=rec(i,y-1)+(sum[x]-sum[i])*sum[i];
        if(i==y-2 || arr[x][y]<temp){
            arr[x][y]=temp;
            brr[x][y]=i+1;
        }
    }
    return arr[x][y];
}
void solve(){
    io();
    cin>>n>>k;
    for(int i=0;i<n;i++){
        cin>>a[i];
        sum[i]=a[i];
        if(i!=0)sum[i]+=sum[i-1];
    }
    cout<<rec(n-1,k+1)<<endl;
    pair<ll,ll> p={n-1,k+1};
    while(p.S>1){
        cout<<brr[p.F][p.S]<<" ";
        p.F=brr[p.F][p.S]-1;p.S--;
    }
    cout<<endl;
}
int main(){
    io();
    solve();
    //int t;cin>>t;for(int i=0;i<t;i++)solve();
    return 0;
}
/*
7 3
4 1 3 4 0 2 3
*/

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