About oops concepts, sorting, printing prime numbers,fabbinoci ,the interviewer was very friendly and I got selected for the next round hr interview hr round I was rejected don't know why because of the requirements 50 got shortlisted for hr but only 26 were taken

They asked some questions regarding oops, and made me write a program to get the most occurred elements in a vector, basic SQL questions how to get the minimum salary from a salary table.