Submission #705281

#	Time	Username	Problem	Language	Result	Execution time	Memory
705281		lukameladze	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	2 ms	468 KiB

messy

#include "messy.h"
#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define pii pair <int, int> 
#define pb push_back
vector <int> pp;
int nn,rr,ww;
void solve(int le, int ri) {
	if (le == ri) return ;
	string s = "";
	for (int i = 0; i < nn; i++) {
		s += "0";
	}
	for (int i = 0; i < le; i++) {
		s[i] = '1';
	}
	for (int i = ri + 1; i < nn; i++) {
		s[i] = '1';
	}
	int mid = (le + ri) / 2;
	for (int i = le; i <= mid; i++) {
		s[i] = '1';
		add_element(s);
		s[i] = '0';
	}
	solve(le,mid);
	solve(mid + 1, ri);
}
void solve1(int le, int ri, vector <int> v) {
	if (le == ri) {
		pp[v[0]] = le;
		return ;
	}
	int mid = (le + ri) / 2;
	string s;
	for (int i = 0; i < nn; i++) {
		s += "1";
	}
	for (int i = 0; i < (int)v.size(); i++) {
		s[v[i]] = '0';
	}
	vector <int> lef,rig;
	for (int i = 0; i < (int)v.size(); i++) {
		s[v[i]] = '1';
		if (check_element(s)) lef.pb(v[i]);
		else rig.pb(v[i]);
		s[v[i]] = '0';
	}
	solve1(le,mid,lef);
	solve1(mid + 1, ri, rig);
}
std::vector<int> restore_permutation(int n, int w, int r) {
	nn = n;
	ww = w;
	rr = r;
	pp = vector <int>(nn, 0);
    solve(0,nn - 1);
    compile_set();
    vector <int> v;
    for (int i = 0; i < nn; i++) {
    	v.pb(i);
	}
	solve1(0, nn - 1,v);
    return pp;
}

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