Submission #990955

#	Time	Username	Problem	Language	Result	Execution time	Memory
990955		hasan2006	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	394 ms	293972 KiB

boxes

#include <bits/stdc++.h>

using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 1e7 + 9 , mod = 1e9 + 7;
ll  b[N] , c[N] ;
ll delivery(int n,int k, int l,int a[])
{

    for(int i = 1; i <= n; i++){
        b[i] = min(l , a[i - 1] * 2);
        if(i > k)
            b[i] += b[i - k];
    }
    ll ans =b[n];
    for(int i = n; i >= 1; i--){
        c[i] = min(l , (l - a[i - 1]) * 2);
        if(i + k <= n)
            c[i] += c[i + k];
        ans= min(ans , b[i - 1] + c[i]);
    }
	return ans;
}

// Author : حسن

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