#153. roundSum
roundSum
Background
Description
For this problem, we'll round an int value up to the next multiple of 10 if its rightmost digit is 5 or more, so 15 rounds up to 20. Alternately, round down to the previous multiple of 10 if its rightmost digit is less than 5, so 12 rounds down to 10. Given 3 ints, a b c, return the sum of their rounded values. To avoid code repetition, write a separate helper "public int round10(int num) {" and call it 3 times. Write the helper entirely below and at the same indent level as roundSum().
Format
Input
Output
Samples
16 17 18
60
12 13 14
30
6 4 4
10
Limitation
1s, 1024KiB for each test case.