Submission #677521

#	Time	Username	Problem	Language	Result	Execution time	Memory
677521		stanislavpolyn	Measures (CEOI22_measures)	C++17	24 / 100	154 ms	2892 KiB

Main

#include <bits/stdc++.h>

#define fr(i, a, b) for (int i = (a); i <= (b); ++i)
#define rf(i, a, b) for (int i = (a); i >= (b); --i)
#define fe(x, y) for (auto& x : y)

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define mt make_tuple

#define all(x) (x).begin(), (x).end()
#define pw(x) (1LL << (x))
#define sz(x) (int)(x).size()

using namespace std;

mt19937_64 rng(228);

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define fbo find_by_order
#define ook order_of_key

template <typename T>
bool umn(T& a, T b) {
    return a > b ? (a = b, 1) : 0;
}
template <typename T>
bool umx(T& a, T b) {
    return a < b ? (a = b, 1) : 0;
}

using ll = long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
template <typename T>
using ve = vector<T>;

const int N = 4e5 + 5;

int n, m;
ll D;
ll a[N];
ll b[N];
ll d[N];
ll suff[N];

int rnd(int l, int r) {
    return rng() % (r - l + 1) + l;
}

ll T[N];

ve<ll> Q;

ve<pll> u;
//bool subtask = 1;

//ve<ll> v;
//ve<ll> pos;

//void add(ll x) {
//    assert(is_sorted(all(v)));
//    int idx = sz(v) - 1;
//    fr (i, 0, sz(v) - 1) {
//        if (x > v[i]) {
//            idx = i - 1;
//            break;
//        }
//    }
//
//    ll myPos = -1;
//    if (idx - 1 >= 0) {
//        myPos = max(x, pos[idx - 1] + D);
//    } else {
//        myPos = x;
//    }
//}
int id[N];

struct Node {
    ll last;
    ll ans;
};

Node t[4 * N];

//void build(int v, int tl, int tr) {
//    t[v] = {-1e18, -1e18};
//    if (tl == tr) {
//        return;
//    }
//    int tm = (tl + tr) >> 1;
//    build(v << 1, tl, tm);
//    build(v << 1 | 1, tm + 1, tr);
//}
//
//void upd(int v, int tl, int tr, int pos) {
//    if (tl == tr) {
//
//        return;
//    }
//}

bool subtask = 1;

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios::sync_with_stdio(0);
    cin.tie(0);
#endif

    cin >> n >> m >> D;

    D *= 2;

    fr (i, 1, n) {
        cin >> a[i];
//        a[i] = rnd(1, int(100));
        a[i] *= 2;
    }

    fr (i, 1, m) {
        cin >> b[i];
        if (i > 1) {
            subtask &= b[i] >= b[i - 1];
        }
    }
    subtask &= n == 0;

    if (!subtask) {
        fr (i, 1, m) {
            ll x;
            x = b[i];
            x *= 2;

            a[++n] = x;
            sort(a + 1, a + 1 + n);

            ll last = a[1];
            ll ans = 0;
            fr (j, 2, n) {
                if (a[j] - last >= D) {
                    last = a[j];
                    continue;
                }
                umx(ans, abs(a[j] - (last + D)));
                last += D;
            }
            ans /= 2;

            cout << ans / 2;
            if (ans % 2) cout << ".5";
            cout << "\n";
        }

    } else {
        ll last = -1;
        ll ans = 0;
        fr (i, 1, m) {
            ll x;
            x = b[i];
            x *= 2;
            n++;

            if (n == 1) {
                last = x;
            } else {
                if (x - last >= D) {
                    last = x;
                } else {
                    umx(ans, abs(x - (last + D)));
                    last += D;
                }
            }


            cout << ans / 4;
            if (ans % 2) cout << ".5";
            cout << "\n";
        }
    }


//    fr (i, 1, m) {
//        ll x;
//        cin >> x;
//        x *= 2;
//        Q.pb(x);
//        u.pb({x, i});
//    }
//
//    sort(all(u));
//    fr (i, 0, sz(u) - 1) {
//        id[u[i].se] = i;
//    }
//


    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41