Submission #1269198

#	Time	Username	Problem	Language	Result	Execution time	Memory
1269198		gay	Snowball (JOI21_ho_t2)	C++20	100 / 100	111 ms	8280 KiB

Main

#include <bits/stdc++.h>
#include <experimental/random>
#include <random>

using namespace std;
using ll = long long;
using ld = long double;

const ll INF = 1e18, MOD = 998244353;

void solve();

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ll q = 1;
    //cin >> q;
    while (q--) {
        solve();
    }
}

void solve() {
    ll n, q;
    cin >> n >> q;
    vector<ll> x(n);
    for (int i = 0; i < n; i++) {
        cin >> x[i];
    }
    vector<ll> l(q + 1), r(q + 1);
    ll cur = 0;
    for (int i = 0; i < q; i++) {
        ll nw;
        cin >> nw;
        cur += nw;
        l[i + 1] = min(l[i], cur);
        r[i + 1] = max(r[i], cur);
    }

    vector<ll> ans(n);
    ans[0] += x[0] - (x[0] + l[q]);
    ans[n - 1] += (x[n - 1] + r[q]) - x[n - 1];

     for (int i = 1; i < n; i++) {
        ll lf = 0, rf = q + 1;
        while (rf - lf > 1) {
            ll mid = (lf + rf) / 2;
            if (x[i - 1] + r[mid] <= x[i] + l[mid]) {
                lf = mid;
            } else {
                rf = mid;
            }
        }

        ll fir = x[i - 1] + r[lf];
        ll sec = x[i] + l[lf];
        if (lf == q) {
            ans[i - 1] += fir - x[i - 1];
            ans[i] += x[i] - sec;
        } else {
            ll idx = fir;
            if (r[lf + 1] != r[lf]) {
                idx = sec;
            }
            ans[i - 1] += idx - x[i - 1];
            ans[i] += x[i] - idx;
        }
    }

    for (auto i : ans) {
        cout << i << '\n';
    }
}

• Subtask 1: 33 / 33
• Subtask 2: 67 / 67