Submission #213301

#	Time	Username	Problem	Language	Result	Execution time	Memory
213301		arman_ferdous	Boxes with souvenirs (IOI15_boxes)	C++14	35 / 100	5 ms	512 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
const int N = 1e7+10;
int n, k; ll l;
ll dp1[N], dp2[N];

long long delivery(int _n, int _k, int _l, int p[]) {
  n = _n, k = _k, l = _l;
  for(int i = 1; i <= n; i++) {
    dp1[i] = 2ll * p[i - 1] + (i - k ? dp1[i - k] : 0);
    dp2[i] = 2ll * (l - p[n - i]) + (i - k ? dp2[i - k] : 0);
  }
  ll ans = 1e18;
  for(int i = 0; i <= n; i++) {
    ans = min(ans, dp1[i] + dp2[n - i]);
    if(n - i - k >= 0) 
      ans = min(ans, dp1[i] + dp2[n - i - k] + l);
  }
  return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30