Submission #1034221

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034221		vjudge1	cmp (balkan11_cmp)	C++17	0 / 100	10030 ms	82516 KiB

cmp

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

const int N = 4096;

int ans[N];

void remember(int n) {
  for (int i = 0; i < 4096; i++) {
    ans[i] = -2;
  }

  int x = __builtin_popcount(n);
  if (x < 1 + 12-x) {
    for (int i = 0; i <= 11; i++) {
      if ((n >> i) & 1) bit_set(i+1);
    }
  }
  else {
    bit_set(13);
    for (int i = 0; i <= 11; i++) {
      if (!((n >> i) & 1)) bit_set(i+1);
    }
  }
}

int compare(int n) {
  if (n && ans[n-1] == 1 && n+1 < 4096 && ans[n+1] == -1) {
    return ans[n] = 0;
  }

  for (int i = 0; i < n; i++) {
    if (ans[i] == -2) continue;
    else if (ans[i] < 1) return ans[n] = -1;
  }

  for (int i = n+1; i < 4096; i++) {
    if (ans[i] == -2) continue;
    else if (ans[i] > -1) return ans[n] = 1;
  }

  int inv = bit_get(13);
  for (int i = 11; i >= 0; i--) {
    int x = bit_get(i+1);
    if (inv) x = !x;

    int y = (n >> i) & 1;
    
    if (x > y) return -1;
    else if (x < y) return 1;
  }

  return 0;
}

• Subtask 1: 0 / 100