C++ :

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

int main()
{
    int i,n,c = 0,t,x;
    cin>>n>>x;
    for(int i = 1;i <= n;i++){
    	t = i;
    	while(t != 0){
    		if(t % 10 == x) c++;
    		t = t / 10;
		} 
	}
	
	cout<<c;
    return 0;
}

Java :

import java.util.Scanner;

public class Main {

    public static void main(String[] args)
    {
        Scanner in=new Scanner(System.in);
        int n=in.nextInt();
        int x=in.nextInt();
        String strx=String.valueOf(x);
        char cx=strx.charAt(0);//将整数变换成字符
        int total=0;
        for(int i=1;i<=n;i++)
        {
            String str=String.valueOf(i);//将整数变换为字符串

            for(int j=0;j<str.length();j++)
            {
                if(str.charAt(j)==cx) total++; //遍历字符串中的每一个字符
            }
        }
        System.out.println(total);
    }

}