Submission #886247

#	Time	Username	Problem	Language	Result	Execution time	Memory
886247		Rafi22	timeismoney (balkan11_timeismoney)	C++14	100 / 100	1746 ms	1564 KiB

timeismoney

#include <bits/stdc++.h>

//#define int long long
#define ll long long
#define ld long double
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
using namespace std;
int inf=1000000007;
int mod=1000000007;
int mod1=998244353;

const int N=207,M=10007;

int U[M],V[M],X[M],Y[M];

bool cmp(pair<int,int>L,pair<int,int>R)
{
    return L.st*R.nd<R.st*L.nd;
}
vector<int>W;
int n;

int r[N];
int Find(int v)
{
    if(r[v]==v) return v;
    return r[v]=Find(r[v]);
}

vector<pair<int,int>>ans,act;
int sX,sY,bX,bY,res=2*inf;

void Union(int u,int v,int i)
{
    int uu=Find(u),vv=Find(v);
    if(uu==vv) return ;
    r[uu]=vv;
    act.pb({u,v});
    sX+=X[i];
    sY+=Y[i];
}

void calc()
{
    for(int i=0;i<n;i++) r[i]=i;
    act.clear();
    sX=0;
    sY=0;
    for(auto i:W)
    {
        Union(U[i],V[i],i);
        if(sX*sY>=res) break;
    }
    if(sX*sY<res)
    {
        res=sX*sY;
        ans=act;
        bX=sX;
        bY=sY;
    }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int m;
    cin>>n>>m;
    vector<pair<int,int>>ord;
    for(int i=0;i<m;i++)
    {
        cin>>U[i]>>V[i]>>X[i]>>Y[i];
        ord.pb({X[i],i});
    }
    sort(all(ord));
    for(auto [c,x]:ord) W.pb(x);
    vector<pair<int,int>>F;
    F.pb({0,1});
    for(int a=1;a<=255;a++) for(int b=1;b<=255;b++) if(__gcd(a,b)==1) F.pb({a,b});
    sort(all(F),cmp);
    calc();
    for(auto [a,b]:F)
    {
        for(int i=0;i<m;i++)
        {
            int j=i;
            while(j>0&&a*X[W[j]]+b*Y[W[j]]<a*X[W[j-1]]+b*Y[W[j-1]])
            {
                swap(W[j],W[j-1]);
                j--;
            }
        }
        calc();
    }
    cout<<bX<<" "<<bY<<endl;
    for(auto [x,y]:ans) cout<<x<<" "<<y<<endl;


    return 0;
}

Compilation message (stderr)

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:82:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   82 |     for(auto [c,x]:ord) W.pb(x);
      |              ^
timeismoney.cpp:88:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   88 |     for(auto [a,b]:F)
      |              ^
timeismoney.cpp:102:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  102 |     for(auto [x,y]:ans) cout<<x<<" "<<y<<endl;
      |              ^

• Subtask 1: 100 / 100