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