Submission #952546

#	Time	Username	Problem	Language	Result	Execution time	Memory
952546		SmuggingSpun	Unscrambling a Messy Bug (IOI16_messy)	C++14	38 / 100	1 ms	760 KiB

messy

#include "messy.h"
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
vector<int>restore_permutation(int n, int w, int r){
	assert(n <= 32);
	if(n <= 32){
		string s(n, '0'), current(n, '0');
		for(int i = 0; i + 1 < n; i++){
			s[i] = '1';
			add_element(s);
		}
		compile_set();
		vector<int>ans(n), p(n);
		iota(p.begin(), p.end(), 0);
		for(int i = 0; i < n; i++){
			shuffle(p.begin(), p.end(), rng);
			int index = int(p.size()) - 1;
			for(int i = 0; i + 1 < p.size(); i++){
				current[p[i]] = '1';
				if(check_element(current)){
					index = i;
					break;
				}
				current[p[i]] = '0';
			}
			current[p[index]] = '1';
			ans[p[index]] = i;
			p.erase(p.begin() + index);
		}
		return ans;
	}
}

Compilation message (stderr)

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:19:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |    for(int i = 0; i + 1 < p.size(); i++){
      |                   ~~~~~~^~~~~~~~~~
messy.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type]
   33 | }
      | ^

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 0 / 11
• Subtask 4: 0 / 21
• Subtask 5: 0 / 30