Submission #208036

#	Time	Username	Problem	Language	Result	Execution time	Memory
208036		rzbt	Split the sequence (APIO14_sequence)	C++14	28 / 100	2100 ms	91720 KiB

sequence

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define MAXN 100005
#define MAXK 205
typedef long long ll;


using namespace std;

ll n,u;
ll dp[MAXN][MAXK];
ll niz[MAXN];
ll suma[MAXN];
ll sec[MAXN][MAXK];
pair<ll,ll> prava[MAXN][MAXK];
vector<pair<pair<ll,ll>,ll> > prave;

int main()
{
    scanf("%lld %lld", &n, &u);

    for(ll i=1;i<=n;i++)
        scanf("%lld",niz+i);
    for(ll i=1;i<=n;i++)
        suma[i]=suma[i-1]+niz[i];


    for(ll k=1;k<=u;k++){
        prave.clear();
        for(ll d=k+1;d<=n;d++){
            //while(!prave.empty())

            for(ll i=k+1;i<=d;i++){
                ll tr=suma[i-1]*(suma[d]-suma[i-1])+dp[i-1][k-1];
                if(tr>dp[d][k]){
                    sec[d][k]=i-1;
                    dp[d][k]=tr;
                }

            }
            //printf("   %lld %lld    %lld\n",d,k,dp[d][k]);
        }
    }

    printf("%lld\n",dp[n][u]);
    ll poc=n;
    for(ll i=u;i>0;i--){
        poc=sec[poc][i];
        printf("%lld ",poc);
    }
    return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &n, &u);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
sequence.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",niz+i);
         ~~~~~^~~~~~~~~~~~~~

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