Submission #517755

#	Time	Username	Problem	Language	Result	Execution time	Memory
517755		athensclub	Palindrome-Free Numbers (BOI13_numbers)	C++14	36.67 / 100	1087 ms	564 KiB

numbers

#include <iostream>
using namespace std;

bool check2(unsigned long long num)
{
    while (num / 10 > 0)
    {
        if (num % 10 == ((num / 10) % 10))
            return true;
        num /= 10;
    }
    return false;
}

bool check3(unsigned long long num)
{
    while (num / 100 > 0)
    {
        if (num % 10 == ((num / 100) % 10))
            return true;
        num /= 10;
    }
    return false;
}

bool checkParlindrome(unsigned long long num)
{
    return check2(num) || check3(num);
}

int main()
{
    unsigned long long a, b;
    cin >> a >> b;
    unsigned long long total = 0;
    for (unsigned long long i = a; i <= b; i++)
        if (!checkParlindrome(i))
            total++;
    cout << total << endl;
    return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 11.666666666666666 / 75