diff options
Diffstat (limited to 'num_even_nums.cpp')
-rw-r--r-- | num_even_nums.cpp | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/num_even_nums.cpp b/num_even_nums.cpp deleted file mode 100644 index 1513c72..0000000 --- a/num_even_nums.cpp +++ /dev/null @@ -1,29 +0,0 @@ -#include "leetcode.h" - -/* - * given array 'nums' of integers, return how - * many of them contain an even number of digits. - */ - -class Solution { -public: - int findNumbers(vector<int> &nums) { - int ans = 0; - // use auto to identify data type & iterate through array - for (auto i : nums) - /* - * log10 returns a decimal so convert it to int - * it also returns n - 1. eg. log10(100) = 2 - * use bitwise and to check if it's odd - */ - ans += log10(i) & 1; - return ans; - } -}; - -int main() { - Solution obj; - vector<int> nums1 = {12, 345, 2, 6, 7896}, nums2 = {555, 901, 482, 1771}; - cout << obj.findNumbers(nums1) << endl; // expect: 2 - cout << obj.findNumbers(nums2) << endl; // expect: 1 -} |