Coin Change Problem in Kotlin: Multiple Approaches with Examples

The coin change problem is a classic leet coding challenge often encountered in technical interviews. The problem asks:Given an array of coin denominations and a target amount, find the fewest number of coins needed to make up that amount. If it's not possible, return -1. You can use each coin denomination...

Read More

Problem and Solution: Background ListView becomes black when scrolling after populated data on list

I have faced background ListView becomes black when scrolling after populated data on list, after that i have  found easy solution from stackoverflow.Add an attribute on the ListView Tagandroid:cacheColorHint="#00000000"More details about this problem, go to android blog: http://android-developers.blogspot.com/2009/01/why-is-my-list-black-android.htmlor...

Read More