题解 | #数位五五#
数位五五
https://www.nowcoder.com/practice/4306996b0a534178b90b3514a8b30028
#include <stdio.h>
int is_five(int i);
int main() {
int a, b;
while (2 == scanf("%d %d", &a, &b))
{
int count = 0;
for (int i = a; i <= b; i++)
{
if (is_five(i))
{
count++;
}
}
printf("%d\n", count);
}
return 0;
}
int is_five(int i)
{
int flag = 0;
int sum = 0;
while (i)
{
sum += (i % 10);
i /= 10;
}
if (sum % 5 == 0)
{
return 1;
}
else
{
return 0;
}
}
