题解 | #包含数字9的数#
包含数字9的数
https://www.nowcoder.com/practice/0948f4f3344c452f843afd3585dd0f8d
#include<stdio.h>
int main()
{
int year = 2019;
int i,j,count =0;
for(i=1;i<=year;i++)
{
if(i%10==9)
{
count++;
}
else if((i/10)%10 == 9)
{
count++;
}
else if((i/100)%10 ==9)
{
count++;
}
}
printf("%d",count);
return 0;
}
