Category: c / c++

Two strings are both lowercase letters. Write a function to determine if one string can be constructed using the letters from the other string. For example: canConstruct("aa", "ab") = …

In the field of machine learning and data mining, the Gradient Descent is one simple but effective prediction algorithm based on linear-relation data. It can be used to make …

Given a number of coordinates (could be any dimensions, but for simplicity we use 2 dimension X/Y coordinates for demonstration), you can get the ‘central’ point by averaging all …

If we want to compute , and if the y is integer, we can easily do this using a straigtforward loop O(n), or a O(logn) approach. However, if the …

I need a shell_exec function in PHP with the timeout support but apparently, there is none unless you write one. It is possible to write one on Linux OS, …