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Submission #235326

# Submission time Handle Problem Language Result Execution time Memory
235326 2020-05-28T00:32:58 Z jhnah917 timeismoney (balkan11_timeismoney) C++14
100 / 100
 492 ms 768 KB 
#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
using namespace std;

typedef long long ll;
typedef pair<ll, ll> p;

p operator - (const p a, const p b){return p(a.x - b.x, a.y - b.y); }
struct Edge{
	ll s, e, x, y;
	Edge() : Edge(0, 0, 0, 0) {}
	Edge(ll s, ll e, ll x, ll y) : s(s), e(e), x(x), y(y) {}
};
struct UF{
    int par[222];
    void init(){ iota(par, par+222, 0); }
    int find(int v){ return v == par[v] ? v : par[v] = find(par[v]); }
    bool merge(int u, int v){
        u = find(u), v = find(v);
        if(u == v) return 0;
        par[u] = v; return 1;
    }
} uf;
inline ll ccw(p a, p b, p c){
	p A = b - a, B = c - a;
	return A.x*B.y - A.y*B.x;
}

int n, m;
vector<Edge> edge;
ll mnx, mny;
vector<p> res, now;

p get(ll x, ll y){
    uf.init();
    sort(all(edge), [&](Edge a, Edge b){
        return a.x*x + a.y*y < b.x*x + b.y*y;
    });
    ll s1 = 0, s2 = 0; now.clear();
    for(auto i : edge) if(uf.merge(i.s, i.e)) s1 += i.x, s2 += i.y, now.push_back({i.s, i.e});
    if(s1 * s2 < mnx * mny || res.empty()) mnx = s1, mny = s2, res = now;
    return {s1, s2};
}

void f(p s, p e){
	p m = get(s.y - e.y, e.x - s.x);
    if(ccw(s, m, e) > 0) f(s, m), f(m, e);
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> m; edge.resize(m);
    for(auto &i : edge) cin >> i.s >> i.e >> i.x >> i.y;

    p s = get(1, 0), e = get(0, 1);
    f(s, e);
    cout << mnx << " " << mny << "\n\n";
    for(auto i : res) cout << i.x << " " << i.y << "\n";
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 9 ms 384 KB Output is correct
15 Correct 8 ms 384 KB Output is correct
16 Correct 62 ms 384 KB Output is correct
17 Correct 68 ms 384 KB Output is correct
18 Correct 63 ms 504 KB Output is correct
19 Correct 480 ms 768 KB Output is correct
20 Correct 492 ms 768 KB Output is correct