oj.uz

Submission #223462

# Submission time Handle Problem Language Result Execution time Memory
223462 2020-04-15T09:37:11 Z MKopchev ICC (CEOI16_icc) C++14
61 / 100
 217 ms 704 KB 
#include <bits/stdc++.h>
#include "icc.h"
using namespace std;

const int nmax=100+42;
/*
void setRoad(int a,int b)
{
    cout<<"set "<<a<<" "<<b<<endl;
}

int query(int size_a,int size_b,int a[],int b[])
{
    cout<<"size_a "<<size_a<<" a ";for(int i=0;i<size_a;i++)cout<<a[i]<<" ";cout<<endl;

    cout<<"size_b "<<size_b<<" b ";for(int i=0;i<size_b;i++)cout<<b[i]<<" ";cout<<endl;

    int ret;
    cin>>ret;
    return ret;
}
*/

int size_a,size_b,a[nmax],b[nmax];

int n;

int parent[nmax];

int root(int node)
{
    if(node==parent[node])return parent[node];
    parent[node]=root(parent[node]);
    return parent[node];
}

int my_ask(vector<int> lhs,vector<int> rhs)
{
    size_a=lhs.size();
    for(int i=0;i<size_a;i++)
        a[i]=lhs[i];

    size_b=rhs.size();
    for(int i=0;i<size_b;i++)
        b[i]=rhs[i];

    return query(size_a,size_b,a,b);
}

vector<int> in[nmax];

mt19937 rng(42);

void my_merge(int u,int v)
{
    setRoad(u,v);

    int le=root(u),ri=root(v);

    for(auto k:in[ri])
        in[le].push_back(k);

    in[ri]={};

    parent[ri]=le;
}

void my_reduce(vector<int> &to_reduce,vector<int> other)
{
    while(to_reduce.size()>1)
    {
        vector<int> help[2];
        help[0]={};
        help[1]={};

        for(int i=0;i<to_reduce.size();i++)
            help[i%2].push_back(to_reduce[i]);

        if(my_ask(help[0],other))to_reduce=help[0];
        else to_reduce=help[1];
    }
}
void run(int N)
{
    n=N;
    for(int i=1;i<=n;i++)parent[i]=i,in[i]={i};

    for(int road=1;road<n;road++)
    {
        vector<int> lhs={};
        vector<int> rhs={};
        while(1)
        {
            lhs={};
            rhs={};

            for(int i=1;i<=n;i++)
                if(rng()%2==0)
                {
                    for(auto w:in[i])lhs.push_back(w);
                }
                else
                {
                    for(auto w:in[i])rhs.push_back(w);
                }

            if(lhs.size()==0||rhs.size()==0)continue;

            if(my_ask(lhs,rhs))break;
        }

        my_reduce(lhs,rhs);

        my_reduce(rhs,lhs);

        int u=lhs[0],v=rhs[0];

        my_merge(u,v);
    }
}
/*
int main()
{
    run(4);
}
*/

Compilation message

icc.cpp: In function 'void my_reduce(std::vector<int>&, std::vector<int>)':
icc.cpp:76:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<to_reduce.size();i++)
                     ~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 512 KB Ok! 105 queries used.
2 Correct 11 ms 512 KB Ok! 106 queries used.

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 512 KB Ok! 540 queries used.
2 Correct 61 ms 512 KB Ok! 832 queries used.
3 Correct 59 ms 512 KB Ok! 795 queries used.

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 150 ms 608 KB Ok! 1500 queries used.
2 Correct 217 ms 588 KB Ok! 2147 queries used.
3 Correct 157 ms 512 KB Ok! 1553 queries used.
4 Correct 167 ms 512 KB Ok! 1692 queries used.

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 512 KB Ok! 1639 queries used.
2 Correct 168 ms 512 KB Ok! 1603 queries used.
3 Correct 175 ms 512 KB Ok! 1836 queries used.
4 Correct 160 ms 704 KB Ok! 1570 queries used.

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 178 ms 608 KB Too many queries! 1864 out of 1775
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 203 ms 512 KB Too many queries! 1799 out of 1625
2 Halted 0 ms 0 KB -