Submission #1034697

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034697		Zicrus	Boxes with souvenirs (IOI15_boxes)	C++17	20 / 100	1 ms	604 KiB

boxes

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

ll left(int n, int k, int l, vector<ll> p) {
    ll sum = 0;
    ll pos = 0;
    for (int i = 0; i < n; i++) {
        sum += min(abs(p[i]-pos), l-abs(p[i]-pos));
        pos = p[i];
        if ((i+1) % k == 0) {
            sum += min(pos, l-pos);
            pos = 0;
        }
    }
    return sum + min(pos, l-pos);
}

ll right(int n, int k, int l, vector<ll> p) {
    reverse(p.begin(), p.end());

    ll sum = 0;
    ll pos = 0;
    for (int i = 0; i < n; i++) {
        sum += min(abs(p[i]-pos), l-abs(p[i]-pos));
        pos = p[i];
        if ((i+1) % k == 0) {
            sum += min(pos, l-pos);
            pos = 0;
        }
    }
    return sum + min(pos, l-pos);
}
 
ll delivery(int n, int k, int l, int p11[]) {
    vector<ll> p(n);
    for (int i = 0; i < n; i++) p[i] = p11[i];
 
    return min(left(n, k, l, p), right(n, k, l, p));
}

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