Submission #999426

#	Time	Username	Problem	Language	Result	Execution time	Memory
999426		vyshniak_n	Park (BOI16_park)	C++17	0 / 100	283 ms	51116 KiB

park

//#pragma optimize("Ofast")
//#pragma optimize("unroll-loops")
//#pragma traget("avx,avx2")
 
#include <iostream>
#include <cmath>
#include <algorithm>
#include <stdio.h>
#include <cstdint>
#include <cstring>
#include <string>
#include <cstdlib>
#include <vector>
#include <bitset>
#include <map>
#include <queue>
#include <ctime>
#include <stack>
#include <set>
#include <list>
#include <random>
#include <deque>
#include <functional>
#include <iomanip>
#include <sstream>
#include <fstream>
#include <complex>
#include <numeric>
#include <cassert>
#include <array>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <thread>
 
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
 
#define el '\n'
#define ff first
#define ss second
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define point pair <ll, ll>
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
 
using namespace std;
 
#include <random>
mt19937 rnd(time(0));
 
const ll INF = 1e18 + 10;
const ll inf = 1e9 + 10;
const ll N = 2e3 + 10;
const ll mod = 998244353;
const ll LOG = 22;
const ll K = 1e3 + 20;

ll x[N], y[N], r[N];
ll parent[N], sz[N];
void build(ll n) {
    for (ll i = 1; i <= n; i++)
        parent[i] = i, sz[i] = 1;
}
ll lead(ll v) {
    if (parent[v] == v)
        return v;
    return parent[v] = lead(parent[v]);
}
void union_sets(ll a, ll b) {
    a = lead(a);
    b = lead(b);

    if (a != b) {
        if (sz[a] < sz[b])
            swap(a, b);

        sz[a] += sz[b];
        parent[b] = a;
    }
}

void solve() {
    ll n, m, w, h;
    cin >> n >> m >> w >> h;

    vector <pair <ll, pair <ll, ll>>> edges;
    for (ll i = 1; i <= n; i++) {
        cin >> x[i] >> y[i] >> r[i];

        for (ll j = 1; j < i; j++) {
            ll distance = abs(x[i] - x[j]) * abs(x[i] - x[j]) +
                          abs(y[i] - y[j]) * abs(y[i] - y[j]);

            distance = sqrtl(distance) - r[i] - r[j];
            edges.pb({distance, {i, j}});       
        }

        edges.pb({x[i] - r[i], {i, n + 1}});
        edges.pb({y[i] - r[i], {i, n + 2}});
        edges.pb({w - x[i] - r[i], {i, n + 3}});
        edges.pb({h - y[i] - r[i], {i, n + 4}});
    }

    sort(all(edges));
    build(n + 4);

    ll mx[5][5];
    for (ll i = 1; i <= 4; i++)
        for (ll j = 1; j <= 4; j++)
            mx[i][j] = inf;

    for (ll i = 0; i < edges.size(); i++) {
        union_sets(edges[i].ss.ff, edges[i].ss.ss);

        for (ll j = 1; j <= 4; j++)
            for (ll k = 1; k <= 4; k++)
                if (lead(n + j) == lead(n + k))
                    mx[j][k] = min(mx[j][k], edges[i].ff);
    }

    while (m--) {
        ll rad, e;
        cin >> rad >> e;

        ll d = 2 * rad;

        if (e == 1) {
            if (d > mx[1][2])
                cout << 1 << el;
            else if (d > mx[1][3])
                cout << 12 << el;
            else if (d > mx[2][4])
                cout << 14 << el;
            else if (d > mx[2][3])
                cout << 134 << el;
            else if (d > mx[3][4])
                cout << 124 << el;
            else if (d > mx[1][4])
                cout << 123 << el;
            else
                cout << 1234 << el;
        } else if (e == 2) {
            if (d > mx[2][3])
                cout << 2 << el;
            else if (d > mx[1][3])
                cout << 12 << el;
            else if (d > mx[2][4])
                cout << 23 << el;
            else if (d > mx[1][2])
                cout << 234 << el;
            else if (d > mx[3][4])
                cout << 124 << el;
            else if (d > mx[1][4])
                cout << 123 << el;
            else
                cout << 1234 << el;
        } else if (e == 3) {
            if (d > mx[3][4])
                cout << 3 << el;
            else if (d > mx[1][3])
                cout << 34 << el;
            else if (d > mx[2][4])
                cout << 23 << el;
            else if (d > mx[1][2])
                cout << 234 << el;
            else if (d > mx[2][3])
                cout << 134 << el;
            else if (d > mx[1][4])
                cout << 123 << el;
            else
                cout << 1234 << el;
        } else {
            if (d > mx[4][1])
                cout << 4 << el;
            else if (d > mx[1][3])
                cout << 34 << el;
            else if (d > mx[2][4])
                cout << 14 << el;
            else if (d > mx[1][2])
                cout << 234 << el;
            else if (d > mx[2][3])
                cout << 134 << el;
            else if (d > mx[3][4])
                cout << 124 << el;
            else
                cout << 1234 << el;
        }
    }
    return;
}
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
 
    int tests = 1;
    //cin >> tests;
 
    while (tests--) 
        solve();
    return 0;
}
/*
*/

Compilation message (stderr)

park.cpp: In function 'void solve()':
park.cpp:117:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |     for (ll i = 0; i < edges.size(); i++) {
      |                    ~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 27
• Subtask 2: 0 / 31
• Subtask 3: 0 / 42