oj.uz

답안 #1009911

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1009911 2024-06-28T07:51:45 Z vjudge1 시간이 돈 (balkan11_timeismoney) C++17
90 / 100
 688 ms 1488 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX = 205;
typedef long long ll;

struct Edge{
    ll a, b, x, y;
};
struct Poll{
    ll x = 0, y = 0;
    vector<Edge> v = vector<Edge>{};
};
bool eq(Poll& p1, Poll& p2){
    return p1.x == p2.x && p1.y == p2.y;
}

ll n, m, boss[MAX];
vector<Edge> edges;

ll findBoss(ll node){
    if(boss[node] == node) return node;
    return boss[node] = findBoss(boss[node]);
}

Poll solve(ll xCoeff, ll yCoeff){
    for(ll i = 0; i < n; i++) boss[i] = i;

    auto v = edges;
    sort(v.begin(), v.end(), [&](const Edge& e1, const Edge& e2){
         return (ll)xCoeff*e1.x + (ll)yCoeff*e1.y < (ll)xCoeff*e2.x + (ll)yCoeff*e2.y;
         });

    Poll ret;
    ret.x = 0; ret.y = 0;
    for(auto e : v){
        ll a = findBoss(e.a), b = findBoss(e.b);
        if(a == b) continue;

        if(rand() % 2) swap(a, b);
        boss[a] = b;

        ret.v.push_back(e);
        ret.x += e.x;
        ret.y += e.y;
    }

    return ret;
}

void prll(Poll& p){
    cout << p.x << ' ' << p.y << '\n';
    for(auto e : p.v) cout << e.a << ' ' << e.b << '\n';
}

Poll best;
void rek(Poll& a, Poll& b){
    Poll novi = solve(a.y - b.y, b.x - a.x);
    if(a.x * (b.y - novi.y) + b.x * (novi.y - a.y) + novi.x * (a.y - b.y) == 0) return;

    /*cout << "a\n";
    cout << a.x << ' ' << a.y << '\n';
    cout << "b\n";
    cout << b.x << ' ' << b.y << '\n';
    cout << "novi\n";
    cout << novi.x << ' ' << novi.y << '\n';*/
    if((ll)novi.x * novi.y < (ll)best.x * best.y) best = novi;

    rek(a, novi);
    rek(novi, b);
}

int main(){
    srand(time(0));

    cin >> n >> m;
    for(ll i = 0; i < m; i++){
        Edge e;
        cin >> e.a >> e.b >> e.x >> e.y;
        edges.push_back(e);
    }

    Poll minX = solve(1, 0);
    Poll minY = solve(0, 1);

    best = minX;
    if((ll)best.x * best.y < (ll)minY.x * minY.y) best = minY;

    if(!eq(minX, minY)) rek(minX, minY);

    prll(best);

    return 0;
}

Subtask #1
90.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 6 ms 1168 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Incorrect 1 ms 348 KB Output isn't correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 5 ms 448 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 91 ms 656 KB Output is correct
17 Correct 90 ms 604 KB Output is correct
18 Correct 92 ms 604 KB Output is correct
19 Correct 648 ms 1488 KB Output is correct
20 Correct 688 ms 1172 KB Output is correct