제출 #107458

#제출 시각아이디문제언어결과실행 시간메모리
107458PeppaPig선물상자 (IOI15_boxes)C++14
0 / 100
2 ms384 KiB
#include "boxes.h" #include <bits/stdc++.h> #define long long long using namespace std; const int N = 1e6+5; long l[N], r[N]; long delivery(int n, int k, int L, int p[]) { for(int i = 1; i <= n; i++) { l[i] = 2ll * p[i-1], r[i] = 2ll * (L - p[i-1]); if(i >= k) l[i] += l[i - k], r[i] += r[i - k]; } long ans = 1e18; for(int i = 0; i <= n; i++) { ans = min(ans, l[i] + r[n - i]); if(n - i - k >= 0) ans = min(ans, l[i] + r[n - i - k] + L); } return ans; }
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