oj.uz

답안 #1009963

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1009963 2024-06-28T08:18:04 Z vjudge1 시간이 돈 (balkan11_timeismoney) C++17
90 / 100
 676 ms 1176 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(eq(a, novi) || eq(b, novi)) 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(10000000, 1);
    Poll minY = solve(1, 1000000);

    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 600 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 6 ms 1020 KB Output is correct
9 Incorrect 0 ms 344 KB Output isn't correct
10 Incorrect 0 ms 344 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 348 KB Output is correct
15 Correct 4 ms 348 KB Output is correct
16 Correct 95 ms 676 KB Output is correct
17 Correct 114 ms 660 KB Output is correct
18 Correct 98 ms 912 KB Output is correct
19 Correct 676 ms 1172 KB Output is correct
20 Correct 661 ms 1176 KB Output is correct