题解 | #数位五五#
数位五五
https://www.nowcoder.com/practice/4306996b0a534178b90b3514a8b30028
#include <stdio.h>
int UnitSum(int x)
{
int sum = 0;
while(x)
{
sum += x % 10;
x /= 10;
}
return sum;
}
int main() {
int start = 0;
int end = 0;
int sum = 0;
while (scanf("%d %d", &start,&end) != EOF)
{
for (int i = start; i <= end; i++)
{
if (UnitSum(i) % 5 == 0)
{
sum++;
}
}
}
printf("%d ",sum);
return 0;
}
