Problem:
Return the sum of the numbers in the array, returning 0 for an empty array. Except the number 13 is very unlucky, so it does not count and numbers that come immediately after a 13 also do not count.
sum13({1, 2, 2, 1}) → 6
sum13({1, 1}) → 2
sum13({1, 2, 2, 1, 13}) → 6
Solution:
public int sum13(int[] nums) {
int sum =0;
for (int i = 0;i <nums.length ;i++)
{
if (nums[i] != 13)
sum+=nums[i];
else if (nums[i] == 13 && i < nums.length -1 ) {
nums[i]=0;
nums[i+1] =0; }
}
return sum;
}
