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 i = 0, tem = 0, count = 0, j = 0;
for (i = 1; i <= 2019; i++) {
j = i;
while (j) {
tem = j % 10;
if (9 == tem) {
count++; break;
}
j /= 10;
}
}
printf("%d", count);
return 0;
}