제출 #64639

#제출 시각아이디문제언어결과실행 시간메모리
64639Bodo171선물상자 (IOI15_boxes)C++14
0 / 100
42 ms41336 KiB
#include "boxes.h" #include <deque> #include <iostream> using namespace std; const int nmax=10*1000*1000+5; deque<int> dq(nmax); long long val[nmax],dp[nmax]; int i,poz; long long delivery(int N, int K, int L, int p[]) { for(i=1;i<=N;i++) { poz=max(i-K,0); dp[i]=min(L+dp[poz],2*p[i-1]+dp[poz]); val[i]=dp[i-1]+2*(L-p[i-1]); if((!dq.empty())&&i-K>=dq.front()) dq.pop_front(); while((!dq.empty())&&val[i]<val[dq.back()]) dq.pop_back(); dq.push_back(i); if(!dq.empty()) dp[i]=min(dp[i],val[dq.front()]); } return dp[N]; }
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