Submission #23992

#	Time	Username	Problem	Language	Result	Execution time	Memory
23992		gs14004	Unscrambling a Messy Bug (IOI16_messy)	C++11	100 / 100	3 ms	540 KiB

messy

#include "messy.h"
#include <bits/stdc++.h>
using namespace std;

int n, occ[128];

void solve(int s, int e){
    if(s == e) return;
    string str;
    for(int j=0; j<n; j++){
        str.push_back('0');
    }
    for(int j=s; j<=e; j++){
        str[j] = '1';
    }
    int m = (s+e)/2;
    for(int j=m+1; j<=e; j++){
        str[j] = '0';
        add_element(str);
        str[j] = '1';
    }
    solve(s, m);
    solve(m+1, e);
}

void solve2(int s, int e, vector<int> c){
    if(s == e){ 
        occ[c[0]] = s;
        return;
    }
    int m = (s+e)/2;
    string str;
    for(int i=0; i<n; i++){
        str.push_back('0');
    }
    for(auto &i : c){
        str[i] = '1';
    }
    vector<int> l, h;
    for(auto &j : c){
        str[j] = '0';
        if(check_element(str)) h.push_back(j);
        else l.push_back(j);
        str[j] = '1';
    }
    solve2(s, m, l);
    solve2(m+1, e, h);
}

vector<int> restore_permutation(int _n, int w, int r) {
    n = _n;
    solve(0, n-1);
    compile_set();
    vector<int> v;
    for(int i=0; i<n; i++) v.push_back(i);
    solve2(0, n-1, v);
    vector<int> dap;
    for(int i=0; i<n; i++) dap.push_back(occ[i]);
    return dap;
}

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