Submission #1217988

#	Time	Username	Problem	Language	Result	Execution time	Memory
1217988		KindaGoodGames	Brperm (RMI20_brperm)	C++20	0 / 100	2 ms	2040 KiB

brperm

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

int rev(int a, int p){
    int r = 0;
    for(int i = 0; i < p; i++){
        int bit = (a & (1<<i)) > 0;
        r += (1<<(p-i-1)) * bit;
    }
    return r;
}
string s;
int n;
void init(int N, const char arr[]) {
  n = N;
  for(int i = 0; i < n; i++){
    s += arr[i];
  }
  return;
}

int query(int l, int k) {
    vector<char> res(n, '#');
    int p2 = 1 << k;
    int r = p2+l-1;
    bool valid = true;
    for(int i = l; i <= r; i++){
      int np = rev(i-l, k)+l;
      res[np] = s[i];

      if(s[np] != s[np]){
        valid = false;
      }
    }
    return true;
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 37
• Subtask 3: 0 / 17
• Subtask 4: 0 / 33