Submission #102337

#	Time	Username	Problem	Language	Result	Execution time	Memory
102337		MoNsTeR_CuBe	Palindrome-Free Numbers (BOI13_numbers)	C++17	31.67 / 100	1084 ms	504 KiB

numbers

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

#define int long long

bool check(string a){
    for(int i = 0; i < (int)a.size()-1; i++){
        if(a[i] == a[i+1]) return false;
    }
    for(int i = 0; i < (int)a.size()-2; i++){
        if(a[i] == a[i+2]) return false;
    }
    return true;
}

string toString(int a){
    if(a == 0) return "0";
    string s = "";
    while(a){
        s = ((char)(a%10+'0'))+s;
        a/=10;
    }
    return s;
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int a;
    int b;
    cin >> a;
    cin >> b;
    int tot = 0;
    while(a <= b){
        if(check(toString(a))){
            tot++;
        }
        a++;
    }
    cout << tot << endl;
}

• Subtask 1: 25 / 25
• Subtask 2: 6.666666666666667 / 75