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