Submission #820199

#	Time	Username	Problem	Language	Result	Execution time	Memory
820199		LittleCube	Bit Shift Registers (IOI21_registers)	C++17	23 / 100	1 ms	628 KiB

registers

#include "registers.h"
#include <bits/stdc++.h>
using namespace std;

const int M = 100, B = 2000;

void dupe_numbers(int n, int k, int t, int x)
{
	/*
		duplicate a k-bit number n times
		x: array
		80, 81: working space
		t: output
	*/
	append_move(80, x);
	int m = 1;
	for (; m + m < n; m += m)
	{
		append_left(81, 80, m * k);
		append_or(80, 81, 80);
	}
	append_left(81, 80, (n - m) * k);
	append_or(t, 81, 80);
}

void construct_instructions(int s, int n, int k, int q)
{
	vector<bool> firstk(B, 0), everyk(B, 0);

	for (int i = 0; i < k; i++)
		firstk[i] = 1;
	append_store(5, firstk);
	append_store(6, everyk);
	auto bubble = [&](int x /* and x + 1*/)
	{
		append_print(0);
		append_left(10, 0, B - (x + 2) * k);
		append_print(10);
		append_right(10, 10, B - 2 * k);
		append_print(10);
		append_right(15, 10, k);
		append_xor(15, 15, 10);
		append_left(15, 15, B - k);
		append_right(15, 15, B - k);
		append_print(15);
		append_move(20, 15);
		for (int i = 1; i < k; i++)
		{
			append_right(30, 20, i);
			append_not(30, 30);
			append_and(20, 30, 20);
		}
		append_print(20);
		append_left(20, 20, B - k);
		append_right(20, 20, B - k);
		append_print(20);
		append_and(40, 20, 10);
		append_add(50, 40, 5);
		append_right(50, 50, k);
		dupe_numbers(k, 1, 50, 50);
		append_and(15, 50, 15);
		append_left(60, 15, k);
		append_or(15, 60, 15);
		append_left(15, 15, x * k);
		append_print(15);
		append_xor(0, 0, 15);
	};
	for (int i = 0; i < n; i++)
		for (int j = 0; j + i + 1 < n; j++)
			bubble(j);
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 25
• Subtask 5: 13 / 13
• Subtask 6: 0 / 29