Submission #419863

#	Time	Username	Problem	Language	Result	Execution time	Memory
419863		xt0r3	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	2 ms	460 KiB

messy

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


vector<int> ans;

void add(int l, int r, int n){
    if(l == r) return;

    int m = (l + r) / 2;
    string s(n, '1');
    for(int i = l; i <= r; i++){
        s[i] = '0';
    }

    for(int i = l; i <= m; i++){
        s[i] = '1';
        add_element(s);
        s[i] = '0';
    }

    add(l, m, n);
    add(m + 1, r, n);
}

void get(int l, int r, int n, const vector<int> &perm){
    if(r == l){
        ans[perm[0]] = l;
        return;
    }

    int m = (l + r) / 2;
    string s(n, '1');
    vector<int> on, off;
    for(int x : perm) s[x] = '0';//perm-ben vannak a lehetseges dolgok
    for(int x : perm){
        s[x] = '1';
        (check_element(s) ? on : off).push_back(x);
        s[x] = '0';
    }
    get(l, m, n, on);
    get(m + 1, r, n, off);
}

std::vector<int> restore_permutation(int n, int w, int r) {
    ans.resize(n);

    add(0, n - 1, n);

    compile_set();

    vector<int> start(n);
    iota(start.begin(), start.end(), 0);
    get(0, n - 1, n, start);

    return ans;
}

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