제출 #1120773

#제출 시각아이디문제언어결과실행 시간메모리
1120773vjudge1Palindrome-Free Numbers (BOI13_numbers)C++17
38.33 / 100
1088 ms512 KiB
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long long
#define INF 1000000000
bool check(string a){
    bool can = 1;
    int n = a.size();
    for (int i = 0; i < n - 1; i++){
        if (a[i] == a[i + 1]) can = 0;
    }
    for (int i = 1; i < n - 1; i++){
        if (a[i - 1] == a[i + 1]) can = 0;
    }
    return can;
}
int main(){
    ll a, b, ans = 0;
    cin>>a>>b;
    for (ll i = a; i <= b; i++){
        if (check(to_string(i))) ans++;
    }
    cout<<ans;
}
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