Submission #709028

#	Time	Username	Problem	Language	Result	Execution time	Memory
709028		ToroTN	Building Bridges (CEOI17_building)	C++14	30 / 100	3088 ms	4436 KiB

building

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll n,h[100005],w[100005],qs[100005],dp[100005];
ll query(ll l,ll r)
{
    if(l>r)return 0;
    return qs[r]-qs[l-1];
}
int main()
{
    ios_base::sync_with_stdio(0),cin.tie(0);
    cin >> n;
    for(int i=1;i<=n;i++)cin >> h[i],dp[i]=1e18;
    for(int i=1;i<=n;i++)cin >> w[i],qs[i]=qs[i-1]+w[i];
    dp[1]=0;
    for(int i=2;i<=n;i++)
    {
        for(int j=1;j<i;j++)
        {
            dp[i]=min(dp[i],dp[j]+query(j+1,i-1)+(h[i]-h[j])*(h[i]-h[j]));
        }
    }
    printf("%lld\n",dp[n]);
}

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