Submission #8030

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
8030	2014-08-27 06:43:22	gs14004	Split the sequence (APIO14_sequence)	C++98	100 / 100	620 ms	85584 KiB

sequence

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#include <cstdio>
#include <utility>
#include <vector>
using namespace std;
typedef long long lint;
typedef pair<lint, int> pi;
int s,e;
lint la[100005],lb[100005];
int label[100005];
void insert(lint p, lint q, int piv){
    la[e] = p;
    lb[e] = q;
    label[e] = piv;
    while(s+1<e && (lb[e-1] - lb[e-2]) * (la[e] - la[e-1]) <= (la[e-2] - la[e-1])* (lb[e-1] - lb[e])){
        la[e-1] = la[e];
        lb[e-1] = lb[e];
        label[e-1] = label[e];
        e--;
    }
    e++;
}
pi query(lint x){
    while(s+1<e && lb[s+1] - lb[s] >= x * (la[s] - la[s+1])) s++;
    return pi(la[s]*x+lb[s],label[s]);
}
int n,k;
lint dp[2][100005],a[100005];
 
 
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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