I created a problem, which I can't solve. Can anyone give answers? Thx :)↵
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Time limit : 2s↵
Given x, y, how many numbers can be represented as a * b, which 1 <= a <= x and 1 <= b <= y?↵
(1 <= x, y <= 2e5)↵
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Sample Input↵
2 5↵
↵
Sample Output↵
8↵
↵
Explanation↵
Among 1 to 10, only 7 and 9 can't be written as a * b.
↵
Time limit : 2s↵
Given x, y, how many numbers can be represented as a * b, which 1 <= a <= x and 1 <= b <= y?↵
(1 <= x, y <= 2e5)↵
↵
Sample Input↵
2 5↵
↵
Sample Output↵
8↵
↵
Explanation↵
Among 1 to 10, only 7 and 9 can't be written as a * b.
