Submission #287340

#	Time	Username	Problem	Language	Result	Execution time	Memory
287340		kevlee	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	540 ms	206460 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mod 1000000007
#define h1 7897897897897897
#define h2 7897466719774591
#define b1 98762051
#define b2 98765431
#define inf 1000000000
#define pi 3.1415926535897932384626
#define LMAX 9223372036854775807
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pii>
#define SET(a, b) memset(a, b, sizeof(a));
#define all(x) (x).begin(), (x).end()
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (a); i >= (b); i--)
ll l[10000005], r[10000005], ans;
long long delivery(int n, int k, int L, int a[]) {
  FOR(i, 0, n - 1) {
    l[i] = min(L, 2 * a[i]);
    r[i] = min(L, 2 * (L - a[i]));
    if (i >= k) l[i] += l[i - k];
  }
  for (int i = n - 1, j = 0; i >= 0; i--, j++) {
    if (j >= k) r[i] += r[i + k];
  }
  ans = min(l[n-1], r[0]);
  FOR(i, 0, n-2) {
    ans = min(ans, l[i] + r[i + 1]);
  }
  return ans;
}

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