Submission #151799

#	Time	Username	Problem	Language	Result	Execution time	Memory
151799		qkxwsm	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	5 ms	676 KiB

messy

/*
PROG: template
LANG: C++11
    _____
  .'     '.
 /  0   0  \
|     ^     |
|  \     /  |
 \  '---'  /
  '._____.'
 */
#include <bits/stdc++.h>
#include "messy.h"

using namespace std;

template<class T>
void readi(T &x)
{
	T input = 0;
	bool negative = false;
	char c = ' ';
	while (c < '-')
	{
		c = getchar();
	}
	if (c == '-')
	{
		negative = true;
		c = getchar();
	}
	while (c >= '0')
	{
		input = input * 10 + (c - '0');
		c = getchar();
	}
	if (negative)
	{
		input = -input;
	}
	x = input;
}
template<class T>
void printi(T output)
{
	if (output == 0)
	{
		putchar('0');
		return;
	}
	if (output < 0)
	{
		putchar('-');
		output = -output;
	}
	int aout[20];
	int ilen = 0;
	while(output)
	{
		aout[ilen] = ((output % 10));
		output /= 10;
		ilen++;
	}
	for (int i = ilen - 1; i >= 0; i--)
	{
		putchar(aout[i] + '0');
	}
	return;
}
template<class T>
void ckmin(T &a, T b)
{
	a = min(a, b);
}
template<class T>
void ckmax(T &a, T b)
{
	a = max(a, b);
}
long long randomize(long long mod)
{
	return ((1ll << 30) * rand() + (1ll << 15) * rand() + rand()) % mod;
}

#define MP make_pair
#define PB push_back
#define PF push_front
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second

const long double PI = 4.0 * atan(1.0);
const long double EPS = 1e-20;

#define MAGIC 347
#define SINF 10007
#define CO 1000007
#define INF 1000000007
#define BIG 1000000931
#define LARGE 1696969696967ll
#define GIANT 2564008813937411ll
#define LLINF 2696969696969696969ll
#define MAXN 128

long long normalize(long long x, long long mod = INF)
{
	return (((x % mod) + mod) % mod);
}

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef bitset<MAXN> bs;
typedef vector<int> vi;

int N;
vector<int> ans;
bs cur;

string conv(bs b)
{
	string t = "";
	for (int i = 0; i < N; i++)
	{
		t += (b[i] + '0');
	}
	return t;
}
void ins(bs b)
{
	add_element(conv(b));
	return;
}
bool chk(bs b)
{
	return check_element(conv(b));
}
void init(int L, int R)
{
	if (L == R)
	{
		return;
	}
	cur.set();
	for (int i = L; i <= R; i++)
	{
		cur[i] = 0;
	}
	int mid = (L + R)/2;
	for (int i = L; i <= mid; i++)
	{
		cur[i] = 1;
		ins(cur);
		cur[i] = 0;
	}
	init(L, mid);
	init(mid + 1, R);
}
void solve(int L, int R, vi pos)
{
	if (L == R)
	{
		ans[pos[0]] = L;
		return;
	}
	cur.set();
	vector<int> lt, rt;
	for (int x : pos)
	{
		cur[x] = 0;
	}
	for (int x : pos)
	{
		cur[x] = 1;
		if (chk(cur))
		{
			lt.PB(x);
		}
		else
		{
			rt.PB(x);
		}
		cur[x] = 0;
	}
	int mid = (L + R)/2;
	solve(L, mid, lt);
	solve(mid + 1, R, rt);
}
vi restore_permutation(int n, int W, int R)
{
	N = n;
	ans.resize(N);
	init(0, N - 1);
	compile_set();
	vector<int> v;
	for (int i = 0; i < N; i++)
	{
		v.PB(i);
	}
	solve(0, N - 1, v);
	return ans;
}

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