Submission #585583

#	Time	Username	Problem	Language	Result	Execution time	Memory
585583		tengiz05	Building Bridges (CEOI17_building)	C++17	30 / 100	3048 ms	3412 KiB

building

#include <bits/stdc++.h>

using i64 = long long;
using namespace std;

constexpr i64 inf = 1E18;

i64 sq(i64 x) {
    return x * x;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n;
    cin >> n;
    
    vector<int> h(n), w(n);
    for (int i = 0; i < n; i++) {
        cin >> h[i];
    }
    
    vector<i64> pre(n);
    
    for (int i = 0; i < n; i++) {
        cin >> w[i];
        if (i > 0)
            pre[i] = pre[i - 1] + w[i];
    }
    
    vector<i64> dp(n, inf);
    
    dp[0] = 0;
    for (int i = 1; i < n; i++) {
        for (int j = 0; j < i; j++) {
            dp[i] = min(dp[i], dp[j] + pre[i - 1] - pre[j] + sq(h[i] - h[j]));
        }
    }
    
    cout << dp[n - 1] << "\n";
    
    return 0;
}

/*

6
3 8 7 1 6 6
0 -1 9 1 2 0


*/

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