Submission #476201

#	Time	Username	Problem	Language	Result	Execution time	Memory
476201		kakayoshi	Building Bridges (CEOI17_building)	C++14	30 / 100	3063 ms	2588 KiB

building

#include <bits/stdc++.h>
using namespace std;
#define forw(i,a,b) for(ll i=a;i<=b;i++)
#define forb(i,a,b) for(ll i=a;i>=b;i--)
typedef long long int ll;
ll res,n,h[100005],w[100005],max1[100005],pre[100005],dp[100005];
void sub1()
{
    for (int i=2;i<=n;i++)
    {
        max1[i]=1e18;
        res=0;
        for (int j=i-1;j>=1;j--)
            {
                ll p=(h[i]-h[j])*(h[i]-h[j])+res+max1[j];
                if (p<max1[i]) max1[i]=p;
                res+=w[j];
            }
    }
    cout<<max1[n];
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    //freopen("test.INP","r",stdin);
    //freopen("test.OUT","w",stdout);
    cin>>n;
    for (int i=1;i<=n;i++)
        cin>>h[i];
    for (int i=1;i<=n;i++)
        cin>>w[i];
    sub1();
    //else sub2();
    //sub2();
    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40