Submission #243726

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
243726	2020-07-01 16:44:40	HuyQuang_re_Zero	Split the sequence (APIO14_sequence)	C++14	33 / 100	55 ms	33272 KiB

sequence

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#include <bits/stdc++.h>
#define db long long
#define N 10002
using namespace std;
struct pt { db A,B; int vt; };
double giao(pt x,pt y)
{
    return (y.B-x.B)*1.0/(x.A-y.A);
}
pt st[N];
long long g[N],f[N][202];
int i,j,n,sl,top,k,tr[N][202],d[N];
int main()
{
  //  freopen("ntu.inp","r",stdin);
   // freopen("ntu.out","w",stdout);
    cin>>n>>k; k++;
    memset(f,-1,sizeof(f));
    f[0][0]=0;
    for(i=1;i<=n;i++) { cin>>g[i]; g[i]+=g[i-1]; }
    for(sl=1;sl<=k;sl++)
    {
        top=0; j=1;
        for(i=0;i<=n;i++)
        {
            if(top>0)
            {
                j=min(j,top);
                while(j<top && st[j].A*g[i]+st[j].B<=st[j+1].A*g[i]+st[j+1].B) j++;
                f[i][sl]=st[j].A*g[i]+st[j].B;
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 0 / 17
• Subtask 5: 0 / 21
• Subtask 6: 0 / 29