题解 | 记数问题
记数问题
https://www.nowcoder.com/practice/28b2d9f2bf2c48de94a1297ed90e1732
#include <stdio.h>
int main() {
int n,x;
scanf("%d %d",&n,&x);
int cnt=0;
for(int i=1;i<=n;i++){
if(i==x)cnt++;
if(i>9){
int d=i;
while(d!=0){
int j=d%10;
if(j==x)cnt++;
d/=10;
}
}
}
printf("%d",cnt);
}
