Problem in leetcode question. Unknown error in solution, please help
Have edited just a small thing in your code, you can see now it’s passing all test cases
Why is this happening btw?
Why is this necessary?
see when you initialize an array you give it a size , right ? We do it cause we have to operate on it’s ith index. Same goes for 1D vector. When you have to iterate on ith index then you have to initialize it with some size. But if you don’t want too initialize it’s size, then you can use push_back() for that. This happens only for 1D vector.
Understood. Thank you so much.
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