Day1开题前还是很忐忑的~~题目一刷出来~~A题第一眼印象很不好~~又长还有图~~先跳过~~B题~~嘿嘿嘿嘿~~水之~~这个....直接贴代码...

Program:

#include<iostream>
#include<algorithm>
#include<stdio.h>
#include<string.h>
#include<cmath>
#include<queue>
#define oo 2000000000
#define ll unsigned long long
using namespace std;  
ll x,a,b,i,k,k1,k2;
int T;
int main()
{      
       cin>>T;
       while (T--)
       {
              cin>>x>>a>>b; 
              if (x) i=(ll)log10(x);
                 else i=0; 
              k=10;
              while (i--) k*=10;
              k1=b/k;
              if (b%k>=x) k1++;
              a--;
              k2=a/k;
              if (a%k>=x) k2++;
              k1-=k2;
              cout<<k1<<endl;
       }
       return 0;
}