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