oj.uz

답안 #17563

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
17563 2015-12-28T02:45:57 Z gs14004 시간이 돈 (balkan11_timeismoney) C++14
100 / 100
 543 ms 2180 KB 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <string>
#include <functional>
#include <vector>
#include <numeric>
#include <deque>
#include <bitset>
#include <iostream>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;

struct edg{int s, e, x, y;}a[10005];
int n, m;

struct disj{
	int pa[205];
	void init(int n){
		for(int i=0; i<n; i++) pa[i] = i;
	}
	int find(int x){
		return pa[x] = (pa[x] == x ? x : find(pa[x]));
	}
	bool uni(int p, int q){
		p = find(p), q = find(q);
		if(p == q) return 0;
		pa[q] = p; return 1;
	}
}disj;

int cx = 1e9, cy = 1e9;
int mc1 = 1e9, mc2 = 1e9;

pi getmst(int c1, int c2, int p){
	disj.init(n);
	sort(a, a+m, [&](const edg &a, const edg &b){
		return 1ll * c1 * a.x + 1ll * c2 * a.y < 1ll * c1 * b.x + 1ll * c2 * b.y;
	});
	pi tmp(0,0);
	for(int i=0; i<m; i++){
		if(disj.uni(a[i].s, a[i].e)){
			tmp.first += a[i].x;
			tmp.second += a[i].y;
			if(p) printf("%d %d\n",a[i].s, a[i].e);
		}
	}
	if(1ll * cx * cy > 1ll * tmp.first * tmp.second){
		cx = tmp.first;
		cy = tmp.second;
		mc1 = c1, mc2 = c2;
	}
	return tmp;
}

bool ccw(pi a, pi b, pi c){
	int dx1 = b.first - a.first;
	int dy1 = b.second - a.second;
	int dx2 = c.first - a.first;
	int dy2 = c.second - a.second;
	return 1ll * dx1 * dy2 >= 1ll * dy1 * dx2;
}

void solve(pi s, pi e){
	pi m = getmst(s.second - e.second, e.first - s.first, 0);
	if(!ccw(e, m, s)) solve(s, m), solve(m, e);
}

int main(){
	cin >> n >> m;
	for(int i=0; i<m; i++){
		cin >> a[i].s >> a[i].e >> a[i].x >> a[i].y;
	}
	pi upper = getmst(1, 0, 0); // x is low
	pi lower = getmst(0, 1, 0); // y is low
	solve(upper, lower);
	printf("%d %d\n",cx,cy);
	getmst(mc1, mc2, 1);
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 2180 KB Output is correct
2 Correct 0 ms 2180 KB Output is correct
3 Correct 0 ms 2180 KB Output is correct
4 Correct 0 ms 2180 KB Output is correct
5 Correct 0 ms 2180 KB Output is correct
6 Correct 0 ms 2180 KB Output is correct
7 Correct 0 ms 2180 KB Output is correct
8 Correct 9 ms 2180 KB Output is correct
9 Correct 0 ms 2180 KB Output is correct
10 Correct 0 ms 2180 KB Output is correct
11 Correct 0 ms 2180 KB Output is correct
12 Correct 0 ms 2180 KB Output is correct
13 Correct 0 ms 2180 KB Output is correct
14 Correct 3 ms 2180 KB Output is correct
15 Correct 3 ms 2180 KB Output is correct
16 Correct 63 ms 2180 KB Output is correct
17 Correct 66 ms 2180 KB Output is correct
18 Correct 59 ms 2180 KB Output is correct
19 Correct 529 ms 2180 KB Output is correct
20 Correct 543 ms 2180 KB Output is correct