Submission #443065

#	Time	Username	Problem	Language	Result	Execution time	Memory
443065		ltf0501	Bit Shift Registers (IOI21_registers)	C++17	0 / 100	1 ms	460 KiB

registers

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

void construct_instructions(int s, int n, int k, int q) {
  vector<bool> v(2000);
  const int min_index = 99, and_index = 98, one_index = 97, max_index = 80;
  v[0] = 1;
  append_store(one_index, v);
  for(int i = 0; i < k; i++) v[i] = 1;
  append_store(and_index, v);

  append_move(50, 0);

  for(int j = 0; j < n; j++) {
    for(int i = 0; i < n - 1; i++) {
      append_right(min_index, 0, i * k);
      append_and(min_index, and_index, min_index); // a[i] at r[min_index]

      append_right(1, 0, (i + 1) * k); // a[i + 1] at r[1]
      append_and(1, 1, and_index);

      append_xor(2, 1, min_index); // a[i] ^ a[i + 1] at r[2]
      append_not(96, min_index);
      append_add(96, 96, 97);
      append_add(96, 96, 1); // y - x at r[96]
      append_right(96, 96, 1000); // y >= x: all 0, y < x: all 1

      append_and(2, 2, 96);
      append_xor(min_index, 2, min_index); // min(a[i], a[i + 1]) at r[min_index]
      append_xor(max_index, min_index, 2); // max(a[i], a[i + 1]) at r[max_index]

      append_left(min_index, min_index, i * k);
      append_left(max_index, max_index, (i + 1) * k);

      append_or(0, 0, min_index);
      append_or(0, 0, max_index);
    }
  }
}

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