Submission #1117570

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117570		mingga	Building Bridges (CEOI17_building)	C++17	30 / 100	3074 ms	3408 KiB

building

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

#define ln '\n'
#define fi first
#define se second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define int long long
const int inf = 2e18;
const int N = 1e5 + 7;
int h[N], w[N], n, ps[N], f[N];

signed main() {
    cin.tie(0) -> sync_with_stdio(0);
    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];
    for(int i = 2; i <= n; i++) {
        f[i] = inf;
        for(int j = 1; j < i; j++) {
            f[i] = min(f[i], f[j] + ps[i - 1] - ps[j] + (h[i] - h[j]) * (h[i] - h[j]));
        }
    }
    cout << f[n];
}

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