Submission #308475

#	Time	Username	Problem	Language	Result	Execution time	Memory
308475		juggernaut	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	3 ms	512 KiB

messy

#include"messy.h"
#include<bits/stdc++.h>
//#include"grader.cpp"
using namespace std;
int nn;
vector<int>res;
void build(int l,int r){
    if(l==r)return;
    int mid=(l+r)>>1,i=l;
    string s(nn,'0');
    for(;i<=r;i++)s[i]='1';
    for(i=l;i<=mid;i++){
        s[i]='0';
        add_element(s);
        s[i]='1';
    }
    build(l,mid);
    build(mid+1,r);
}
void go(vector<int>v){
    if(v.size()==1)return;
    string s(nn,'0');
    for(int to:v)s[to]='1';
    int mid=int(v.size())>>1;
    vector<int>a,b;
    for(int to:v){
        s[to]='0';
        if(check_element(s))a.push_back(to);
        else b.push_back(to),res[to]+=mid;
        s[to]='1';
    }
    go(a);
    go(b);
}
vector<int>restore_permutation(int N,int w,int r){
    nn=N;
    build(0,nn-1);
    compile_set();
    res.resize(nn);
    vector<int>v(nn);
    iota(v.begin(),v.end(),0);
    go(v);
    return res;
}

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