题解 | #数位五五#
数位五五
http://www.nowcoder.com/practice/4306996b0a534178b90b3514a8b30028
- #include<stdio.h>
- int main()
- {
- int n1,n2 = 0;
- scanf("%d %d", &n1, &n2);
- int i = 0;
- int sum = 0;
- int count = 0;
- for (i = n1; i <= n2; i++)
- {
- sum = 0;
- int k = i;
- while (k)
- {
- sum += k % 10;
- k /= 10;
- }
- if (sum % 5 == 0)
- {
- count++;
- }
- }
- printf("%d\n", count);
- return 0;
- }
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