oj.uz

Submission #145604

# Submission time Handle Problem Language Result Execution time Memory
145604 2019-08-20T13:41:47 Z MKopchev timeismoney (balkan11_timeismoney) C++14
75 / 100
 2000 ms 760 KB 
#include<bits/stdc++.h>
using namespace std;
const int nmax=200+42;
struct edge
{
    int u,v;
    int time,money;
    long long cost;
};
int n,m;
edge inp[nmax*nmax];
pair<long long,long long> best={1e9,1e9};
vector< pair<int,int> > output;

int parent[nmax];
int root(int node)
{
    if(parent[node]==node)return node;
    parent[node]=root(parent[node]);
    return parent[node];
}
bool cmp(edge a,edge b)
{
    return a.cost<b.cost;
}
pair<long long,long long> mst(pair<long long,long long> add)
{
    for(int i=0;i<n;i++)
        parent[i]=i;

    pair<long long,long long> now={0,0};
    vector< pair<int,int> > in={};
    for(int i=1;i<=m;i++)
    {
        inp[i].cost=add.first*inp[i].time+add.second*inp[i].money;
        //cout<<i<<" -> "<<inp[i].cost<<endl;
    }

    sort(inp+1,inp+m+1,cmp);
    for(int i=1;i<=m;i++)
    {
        if(root(inp[i].u)!=root(inp[i].v))
        {
            parent[root(inp[i].u)]=root(inp[i].v);
            in.push_back({inp[i].u,inp[i].v});
            now.first+=inp[i].time;
            now.second+=inp[i].money;
        }
    }

    if(now.first*now.second<best.first*best.second)
    {
        best=now;
        output=in;
    }

    //cout<<add.first<<" "<<add.second<<" -> "<<now.first<<" "<<now.second<<endl;

    //system("pause");

    return now;
}
bool test(pair<long long,long long> q)
{
    return q.first>1e9||q.second>1e9;
}
void solve(pair<long long,long long> l,pair<long long,long long> result_l,pair<long long,long long> r,pair<long long,long long> result_r,int in)
{
    if(result_l==result_r)return;

    if(in>100)return;
    if(test(l)||test(r))return;

    pair<long long,long long> av={l.first+r.first,l.second+r.second};

    pair<long long,long long> result_av=mst(av);

    solve(l,result_l,av,result_av,in+1);
    solve(av,result_av,r,result_r,in+1);
}
int main()
{
    scanf("%i%i",&n,&m);
    for(int i=1;i<=m;i++)
    {
        scanf("%i%i%i%i",&inp[i].u,&inp[i].v,&inp[i].time,&inp[i].money);
    }

    solve({1,0},mst({1,0}),{0,1},mst({0,1}),0);

    printf("%lld %lld\n",best.first,best.second);
    for(auto k:output)
        printf("%i %i\n",k.first,k.second);
    return 0;
}

Compilation message

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:83:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
timeismoney.cpp:86:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i%i%i",&inp[i].u,&inp[i].v,&inp[i].time,&inp[i].money);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
75.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 1 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 8 ms 632 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 4 ms 376 KB Output is correct
11 Correct 3 ms 380 KB Output is correct
12 Correct 10 ms 376 KB Output is correct
13 Correct 13 ms 504 KB Output is correct
14 Correct 227 ms 396 KB Output is correct
15 Correct 158 ms 504 KB Output is correct
16 Execution timed out 2055 ms 376 KB Time limit exceeded
17 Execution timed out 2061 ms 376 KB Time limit exceeded
18 Execution timed out 2021 ms 376 KB Time limit exceeded
19 Execution timed out 2076 ms 760 KB Time limit exceeded
20 Execution timed out 2067 ms 760 KB Time limit exceeded