Submission #987717

#	Time	Username	Problem	Language	Result	Execution time	Memory
987717		ErJ	Building Bridges (CEOI17_building)	C++17	30 / 100	3017 ms	3672 KiB

building

#include<bits/stdc++.h>

#define ll long long
#define vi vector<ll>
#define vvi vector<vi>
#define pp pair<ll, ll>
#define inf 1000000000000000
#define rep(i,n) for(int i = 0; i < n; i++)

using namespace std;

int main(){
    cin.tie(NULL);
    ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    ll Wsum = 0;
    vi h(n);
    rep(i,n){
        cin >> h[i];
    }
    vi w(n);
    rep(i,n){
        cin >> w[i];
        Wsum += w[i];
    }
    vi dp(n, inf);
    dp[0] = -w[0];
    for(int i = 1; i < n; i++){
        for(int j = 0; j < i; j++){
            dp[i] = min(dp[i], dp[j] + (h[i] - h[j])*(h[i] - h[j]) - w[i]);
        }
    }
    cout << dp[n-1] + Wsum << endl;
}

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