Submission #18280

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
18280	2016-01-26 11:38:03	mindol	Split the sequence (APIO14_sequence)	C++98	100 / 100	620 ms	84784 KiB

sequence

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#include<cstdio>
#include<stack>
using namespace std;
long long S[100001];
long long dt[2][100001];
int sel[201][100001];
stack<int> st;
struct Elem{long long a,b; int index;};
    Elem data[100010];
    int s,e;
double crossX(long long pa,long long pb,long long qa,long long qb){ return ((double)qb-pb)/((double)pa-qa); }
void add(long long a,long long b,int index)
{
    if(s!=e)
    {
        if(data[e-1].a==a)
        {
            if(data[e-1].b<b) data[e-1]={a,b,index};
            return;
        }
    }
    while(e-s>=2)
    {
        if(crossX(data[e-2].a,data[e-2].b,data[e-1].a,data[e-1].b)>=crossX(data[e-1].a,data[e-1].b,a,b))
            e--;
        else break;
    }
    data[e++]={a,b,index};
}
void get_min(long long x)
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 21 / 21
• Subtask 6: 29 / 29