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,count=0;
char target;
cin>>n>>target;
for(int i=1;i<=n;i++)
{
string s=to_string(i);
for(char c:s)
{
if(c==target)
count++;
}
}
cout<<count;
return 0;
}
