Submission #66880

#	Time	Username	Problem	Language	Result	Execution time	Memory
66880		MKopchev	Unscrambling a Messy Bug (IOI16_messy)	C++14	49 / 100	4 ms	640 KiB

messy

#include<bits/stdc++.h>
#include "messy.h"
using namespace std;
/*
set<string> q;
void add_element(string s)
{
    cout<<"add "<<s<<endl;
    q.insert(s);
}
void compile_set()
{

}
bool check_element(string s)
{
    cout<<"ask "<<s<<endl;
    if(q.count(s))return 1;
    return 0;
}
*/
bool check(string s)
{
    bool ret=check_element(s);
    return ret;
}
vector<int> restore_permutation(int n, int w, int r)
{
    srand(time(0));
    string s={};
    for(int i=0;i<n;i++)s=s+"1";

    for(int i=0;i<n;i++)
    {
    s[i]='0';
    add_element(s);
    }
    compile_set();

    vector<int> result={};
    for(int i=0;i<n;i++)result.push_back(-1);

    for(int i=0;i<n;i++)
    {
        string s="";
        for(int j=0;j<n;j++)s=s+"1";
            for(int j=0;j<n;j++)
                if(result[j]!=-1)s[j]='0';
        vector<int> active={};
        for(int j=0;j<n;j++)
            if(s[j]=='1')active.push_back(j);
            random_shuffle(active.begin(),active.end());
            for(auto j:active)
            {
                s[j]='0';
                r--;
                assert(r>=0);
                if(check(s))
                {
                    result[j]=i;
                    break;
                }
                s[j]='1';
            }
    }
    return result;
}
/*
int main()
{
    for(auto k:restore_permutation(4,16,16))cout<<k<<endl;
}
*/

Compilation message (stderr)

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:50:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(int j=0;j<n;j++)
         ^~~
messy.cpp:52:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
             random_shuffle(active.begin(),active.end());
             ^~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 0 / 21
• Subtask 5: 0 / 30