제출 #928167

#제출 시각아이디문제언어결과실행 시간메모리
928167AlphaMale06선물상자 (IOI15_boxes)C++17
10 / 100
1 ms348 KiB
#include <bits/stdc++.h> using namespace std; using ll = long long; const int N = 1e7+3; ll dp[N]; ll rdp[N]; ll delivery(int n, int k, int l, int a[]) { sort(a, a+n); for(int i=1; i<= n; i++)dp[i]=dp[i-min(i, k)]+2*a[i-1]; for(int i=n; i>=1; i--)rdp[i]=rdp[i+min(n+1-i, k)]+2*(l-a[i-1]); ll ans=min(rdp[1], dp[n]); for(int i=1; i<n; i++)ans=min({ans, dp[i]+rdp[i+1], dp[i+1]+rdp[i]}); return ans; }
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