oj.uz

Submission #517127

# Submission time Handle Problem Language Result Execution time Memory
517127 2022-01-22T15:20:47 Z new_acc timeismoney (balkan11_timeismoney) C++14
100 / 100
 391 ms 496 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define rep(a, b) for(int a = 0; a < (b); a++)
#pragma GCC optimize("O2")
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<ll> vl;
struct item{
	int a,b,c,t,s;
};
const int N=2e2+10;
vector<pair<int,int> >xd,wyn;
item kr[1000*10+10];
ll ans=LLONG_MAX;
pair<int,int> ans2;
int fau[N];
int n,m;
int Find(int a){
	if(fau[a]==a) return a;
	return fau[a]=Find(fau[a]);
}
void Union(int a,int b){
	fau[Find(a)]=Find(fau[b]);
}
pair<int,int> mst(bool ss){
	xd.clear();
	rep(i,n) fau[i]=i;
	sort(kr,kr+m,[&](item a,item b){
		if(ss==0) return a.s<b.s;
		return a.s>b.s;
	});
	pair<int,int>res={0,0};
	rep(i,m) if(Find(kr[i].a)!=Find(kr[i].b)) Union(kr[i].a,kr[i].b),res.fi+=kr[i].t,res.se+=kr[i].c,xd.push_back({kr[i].a,kr[i].b});
	return res;
}
void rek(int x1,int y1,int x2,int y2){
	rep(i,m) kr[i].s=kr[i].c*(x2-x1)+kr[i].t*(y1-y2);
	pair<int,int> curr=mst(1);
	if((x1-curr.fi)*(y2-curr.se)-(x2-curr.fi)*(y1-curr.se)==0) return;
	if(ans>=(ll)(curr.fi)*(ll)(curr.se)) ans=(ll)(curr.fi)*(ll)(curr.se),wyn=xd,ans2={curr.fi,curr.se};
	rek(x1,y1,curr.fi,curr.se);
	rek(curr.fi,curr.se,x2,y2);
}
void solve(){
	cin>>n>>m;
	rep(i,m) cin>>kr[i].a>>kr[i].b>>kr[i].t>>kr[i].c;
	rep(i,m) kr[i].s=kr[i].c;
	pair<int,int> a=mst(0);
	wyn=xd,ans2={a.fi,a.se},ans=(ll)a.fi*(ll)a.se;
	rep(i,m) kr[i].s=kr[i].t;
	pair<int,int>b=mst(0);
	if((ll)b.fi*(ll)b.se<ans) ans=(ll)b.fi*(ll)b.se,ans2={b.fi,b.se},wyn=xd;
	rek(a.fi,a.se,b.fi,b.se);
	cout<<ans2.fi<<" "<<ans2.se<<"\n";
	for(auto u:wyn) cout<<u.fi<<" "<<u.se<<"\n";
}
int main(){
	ios_base::sync_with_stdio(0),cin.tie(0);
	solve();
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 4 ms 460 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 4 ms 204 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 52 ms 332 KB Output is correct
17 Correct 50 ms 332 KB Output is correct
18 Correct 47 ms 332 KB Output is correct
19 Correct 376 ms 480 KB Output is correct
20 Correct 391 ms 496 KB Output is correct