Submission #792431

#	Time	Username	Problem	Language	Result	Execution time	Memory
792431		vjudge1	Bitaro's travel (JOI23_travel)	C++17	15 / 100	3057 ms	3028 KiB

travel

#include<bits/stdc++.h>

using namespace std;
using ll = long long;

ll INF = 1e9 + 10;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin >> n;
    int x[n + 2] = {};
    for(int i = 1; i <= n; i++) 
        cin >> x[i];
    int q;
    cin >> q;
    while(q--) {
        ll ans = 0;
        ll cur;
        cin >> cur;
        int cnt = 0;
        int l = 0, r = 1;
        while(r <= n && x[r] <= cur) r++;
        l = r - 1;
        while(cnt < n) {
            // cout << l << ' ' << r << '\n';
            int w1 = (l > 0 ? cur - x[l] : INF);
            int w2 = (r < n + 1 ? x[r] - cur : INF);
            ans += min(w1, w2);
            if(w1 <= w2) cur = x[l--];
            else cur = x[r++];
            cnt++;
        }
        cout << ans << '\n';
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 30
• Subtask 4: 0 / 55