Submission #160505

#	Time	Username	Problem	Language	Result	Execution time	Memory
160505		oolimry	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	9 ms	632 KiB

messy

#include "messy.h"
#include <bits/stdc++.h>
using namespace std;
std::vector<int> restore_permutation(int n, int w, int r) {
    
    
    for(int bit = n >> 1;bit > 0;bit >>= 1){
		for(int i = 0;i < n;i++){
			if(i & bit){
				string s = "";
				for(int j = 0;j < n;j++){
					if(i == j) s += "1";
					else{
						if(j / (bit*2) == i / (bit*2))
							s += "0";
						else
							s += "1";
					}
				}
				add_element(s);
			}
		}
	}
	vector<int> answer;
	compile_set();
	
	
    typedef pair<int,int> ii;
    vector<ii> current;
    vector<ii> nxt;
    for(int i = 0;i < n;i++){
		current.push_back(ii(i,0));
	}
    for(int t = 0;t < log2(n);t++){
		sort(current.begin(),current.end());
		for(int i = 0;i < n;i++){
			string s = "";
			for(int j = 0;j < n;j++){
				if(i == j) s += "1";
				else if(current[i].second == current[j].second) s += "0";
				else s += "1";
			}
			if(check_element(s)){
				nxt.push_back(ii(current[i].first,current[i].second*2+1));
			}
			else{
				nxt.push_back(ii(current[i].first,current[i].second*2));
			}
		}
		
		current.clear();
		for(ii x : nxt) current.push_back(x);
		nxt.clear();
		
	}
	for(ii x : current){
		answer.push_back(x.second);
	}
    return answer;
}

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