Submission #1296029

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296029		tamerr	Palindrome-Free Numbers (BOI13_numbers)	C++20	55.83 / 100	1096 ms	580 KiB

numbers

#include<bits/stdc++.h>
using namespace std;
bool ok(int x){
  string s = to_string(x);
  for(int i = 0; i < s.size() - 1; i++){
    if(s[i] == s[i + 1] or i < s.size() - 2 && s[i] == s[i + 2])
      return false;
  }
  return true;
}
int main(){
  // freopen("input.txt", "r", stdin);
  // freopen("output.txt", "w", stdout);
  ios_base::sync_with_stdio(false);cin.tie();cout.tie();
  int a, b, ans = 0;
  cin >> a >> b;
  for(int i = a; i <= b; i++){
    ans += ok(i);
  }
  cout << ans;
}

• Subtask 1: 22.5 / 25
• Subtask 2: 33.3333 / 75