Submission #507581

#	Time	Username	Problem	Language	Result	Execution time	Memory
507581		Lobo	Building Bridges (CEOI17_building)	C++17	30 / 100	3047 ms	4416 KiB

building

#include<bits/stdc++.h>
using namespace std;

const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

#define maxn 110000

int n, h[maxn], w[maxn], ps[maxn], dp[maxn];

void solve() {
    cin >> n;
    for(int i = 1; i <= n; i++) {
        cin >> h[i];
    }
    for(int i = 1; i <= n; i++) {
        cin >> w[i];
        ps[i] = ps[i-1] + w[i];
    }

    dp[n] = 0;
    for(int i = n-1; i >= 1; i--) {
        dp[i] = inf;
        for(int j = i+1; j <= n; j++) {
            dp[i] = min(dp[i], dp[j] + (h[j]-h[i])*(h[j]-h[i]) + ps[j-1] - ps[i]);
        }
    }

    cout << dp[1] << endl;
}

int32_t main() {
    ios::sync_with_stdio(false); cin.tie(0);

    // freopen("in.in", "r", stdin);
    //freopen("out.out", "w", stdout);

    int tt = 1;
    // cin >> tt;
    while(tt--) solve();

}

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