Submission #1222024

#	Time	Username	Problem	Language	Result	Execution time	Memory
1222024		395333em	Building Bridges (CEOI17_building)	C++20	30 / 100	3094 ms	3400 KiB

building

#include <bits/stdc++.h>
#define int long long
#define emb emplace_back
#define pii pair <int, int>

using namespace std;

const int mod = 1e9 + 7;
const int inf = 1e18;
const int N = 1e5 + 5;

int n, h[N], w[N], pref[N], dp[N];

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

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