제출 #122450

#제출 시각아이디문제언어결과실행 시간메모리
122450eohomegrownapps선물상자 (IOI15_boxes)C++14
10 / 100
3 ms384 KiB
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

long long delivery(int N, int K, int L, int p[]) {
    vector<ll> dp(N,0);
    for (ll i = 0; i<N; i++){
        ll minval = -1;
        for (ll j = max((i-K+1),0LL); j<=i; j++){
            //from j to i inclusive.
            ll val = min(min((L-p[j])*2,(p[j]+L-p[i])*2),min(L,p[i]*2));
            if (j>0){
                val+=dp[j-1];
            }
            if (minval==-1||minval>val){
                minval=val;
            }
        }
        dp[i]=minval;
        //cout<<dp[i]<<endl;
    }
    return dp[N-1];
}
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