题解 | 记数问题
记数问题
https://www.nowcoder.com/practice/28b2d9f2bf2c48de94a1297ed90e1732
#include<bits/stdc++.h>
using namespace std;
int main(){
int n,num;
cin >> n >> num;
int i,count=0;
for(i=0;i<=n;i++)
{
int term=i;
while(term>0)
{
if(term%10==num) count++;
term/=10;
}
}
cout << count;
}
