Submission #1125879

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125879		KK_1729	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	1 ms	584 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"

using namespace std;

int n;
vector<int> A(128);

void dnc(int l, int r){
    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';
    }

    dnc(l, m);
    dnc(m+1, r);
}


void cnd(int l, int r, vector<int>&a){ 
    if (l == r){
        A[a[0]] = l;
        return;
    }

    int m = (l+r)/2;
    vector<int> x[2];
    string s(n, '1');
    for (auto i: a) s[i] = '0';
    for (auto i: a){
        s[i] = '1';
        x[check_element(s)].push_back(i);
        s[i] = '0';
    }

    cnd(l, m, x[1]);
    cnd(m+1, r, x[0]);

}
std::vector<int> restore_permutation(int N, int w, int r) {
    n = N; dnc(0,n-1); compile_set();
    vector<int> a(n); iota(begin(a),end(a),0);
    cnd(0,n-1,a); A.resize(n); return A;
}

Compilation message (stderr)

messy.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
messy_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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