Submission #1173463

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173463		DangKhoizzzz	Building Bridges (CEOI17_building)	C++17	30 / 100	1 ms	328 KiB

building

#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define pii pair <int , int>
#define arr3 array <int , 3>

using namespace std;

const int INF = 1e18;
const int maxn = 1e3 + 7;

int n , a[maxn] , b[maxn] , dp[maxn];

// nộp hiểu đề bài:

void solve()
{
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i];
    for(int i = 1; i <= n; i++) cin >> b[i];

    for(int i = 1; i <= n; i++) dp[i] = INF;

    dp[1] = 0;

    for(int i = 2; i <= n; i++)
    {
        int sum = 0;
        for(int j = i-1; j >= 1; j--)
        {
            dp[i] = min(dp[i] , dp[j] + sum + (a[i] - a[j])*(a[i] - a[j]));
            sum += b[j];
        }
    }

    //for(int i = 1; i <= n; i++) cout << dp[i] << '\n';

    cout << dp[n] << '\n';

}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    solve();
    return 0;
}

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