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 count = 0;
for (int i = 1; i <= 2019; i++)
{
if (i % 10 == 9 || i / 10 % 10 == 9 || i / 100 % 10 == 9)
{
count++;
}
}
printf("%d", count);
}