Submission #885257

#	Time	Username	Problem	Language	Result	Execution time	Memory
885257		hugsfromadicto	Unscrambling a Messy Bug (IOI16_messy)	C++14	Compilation error	0 ms	0 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"
using namespace std;
int N;
const int MAX=130;

void write(int l, int r, int N)
{
    if(l==r) return;
    
    string s="";
    for(int i=0;i<N;++i)
    {
        if(l<=r and i<=r)
        {
            s+='0';
        }
        else
        {
            s+='1';
        }
    }
    int mid=(l+r)>>1;
    for(int i=l;i<=mid;++i)
    {
        s[i]='1';
        add_element(s);
        s[i]='0';
    }
    write(l,mid,N);
    write(mid+1,r,N);
}
int p[MAX];
void read(int l, int r, vector<int> v, int N)
{
    if(l==r)
    {
        p[v[0]]=l;
        return;
    }
    string s="";
    for(int i=0;i<n;++i)
    {
        s+='1';
    }
    for(int a:v)
    {
        s[a]='0';
    }
    int mid=(l+r)>>1;
    vector<int>left,right;
    for(int i:v)
    {
        s[i]='1';
        if(check_element(s))
        {
            left.push_back(i);
        }
        else{
            right.push_back(i);
        }
        s[i]='0';
    }
    read(l, mid, left, N);
    read(mid + 1, r, right, N);
}



vector<int> restore_permutation(int N,int w,int r)
{
    write(0,N-1,N);
    compile_set();
    vector<int>tmp;
    for(int i=0;i<N;++i)
    {
        tmp.push_back(i);
    }
    read(0,n-1,tmp,N);
    vector<int>res;
    for(int i = 0; i < N; i++){
        res.push_back(p[i]);
    } 
    return res;
}

Compilation message (stderr)

messy.cpp: In function 'void read(int, int, std::vector<int>, int)':
messy.cpp:42:19: error: 'n' was not declared in this scope
   42 |     for(int i=0;i<n;++i)
      |                   ^
messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:79:12: error: 'n' was not declared in this scope
   79 |     read(0,n-1,tmp,N);
      |            ^