Submission #427677

#	Time	Username	Problem	Language	Result	Execution time	Memory
427677		Dan4Life	Boxes with souvenirs (IOI15_boxes)	C++17	35 / 100	202 ms	272 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll delivery(int n, int k, int l, int a[])
{
    if(n<=10)
    {
        ll ans = 100000000000;
        vector<int> v; v.clear();
        for(int i = 0; i < n; i++) v.push_back(a[i]);
        do
        {
            ll sum = 0; int cur = 0;
            for(int i = 0; i < n; i++)
            {
                sum+=min(abs(cur-v[i]), l-abs(cur-v[i])), cur = v[i];
                if(i%k==k-1) sum+=min(cur, l-cur), cur = 0;
            }
            sum+=min(cur, l-cur), ans = min(ans, sum);
        }while(next_permutation(v.begin(), v.end()));
        return ans;
    }
    else if(k==1){
        ll ans = 0;
        for(int i = 0; i < n; i++) ans+=min((ll)a[i], (ll)l-a[i]);
        return ans*2;
    }
    else if(k==n){
        ll ans = min({l, a[n-1]*2, (l-a[0])*2});
        for(int i = 0; i < n-1; i++)
            ans = min(ans, (ll)(a[i]+(l-a[i+1]))*2ll),
            ans = min(ans, (ll)(a[i-1]+(l-a[i]))*2ll);
        return ans;
    }
    else{

    }
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
   39 | }
      | ^

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