Submission #1016177

#	Time	Username	Problem	Language	Result	Execution time	Memory
1016177		onbert	Boxes with souvenirs (IOI15_boxes)	C++17	10 / 100	1 ms	604 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int maxn = 1e7 + 5;
int n, k, l;
int a[maxn];

vector<int> solve() {
    int cnt[k];
    for (int i=0;i<k;i++) cnt[i] = 0;
    vector<int> cost(n);
    for (int i=0;i<n;i++) {
        cnt[i%k] += a[i] * 2;
        cost[i] = cnt[i%k];
    }
    return cost;
}

long long delivery(int32_t N, int32_t K, int32_t L, int32_t p[]) {
    n = N, k = K, l = L;
    for (int i=0;i<n;i++) a[i] = p[i];
    sort(a, a+n);
    vector<int> fwd = solve();
    reverse(a, a+n);
    for (int i=0;i<n;i++) a[i] = (L - a[i]) % L;
    // for (int i=0;i<n;i++) cout << a[i] << " "; cout << endl;
    vector<int> bwd = solve();
    reverse(bwd.begin(), bwd.end());

    // for (int i=0;i<n;i++) cout << fwd[i] << " "; cout << endl;
    // for (int i=0;i<n;i++) cout << bwd[i] << " "; cout << endl;
    int ans = min(fwd[n-1], bwd[0]);
    for (int i=0;i<n;i++) ans = min(fwd[i] + bwd[i+1], ans);
    // cout << ans << endl;
    return ans;
}

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