Submission #928658

#	Time	Username	Problem	Language	Result	Execution time	Memory
928658		Regulus	Building Bridges (CEOI17_building)	C++17	30 / 100	3037 ms	4444 KiB

building

#include <bits/stdc++.h>
#define IO ios::sync_with_stdio(false);cin.tie(0);
#define debug(x) cerr << #x << " = " << (x) << ' '
#define bug(x) cerr << (x) << ' '
#define endl cerr << '\n'
#define all(v) (v).begin(), (v).end()
#define SZ(v) (ll)(v).size()
#define lowbit(x) (x)&-(x)
#define pb emplace_back
#define F first
#define S second
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;

const int N = 1e5+5;
const ll LLINF = 2e18;
ll h[N], w[N], dp[N], sum[N];

int main(void)
{ IO
    int n, i;

    cin >> n;
    for (i=1; i <= n; ++i) cin >> h[i];
    for (i=1; i <= n; ++i) cin >> w[i], sum[i] = sum[i-1] + w[i];

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

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


    return 0;
}

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