Intercontinental Exchange interview questions

Interview was schedule for and 90 mins first 30 mins introduction was given by HR regrading position and that are the expectation. Similarly asked about current role and responsibility in my org. Same thing was repeated by next 30 mins by interviewer who was taking Technical L1. 2 problems was asked to solve on hacker rank . The funny thing was i assume this is an interview and i need to write my custom code but they have rejected me bcoz of i am taking time to write it own logic & not using existing logic like Collection.sort() to sort an element. And last but not the least HR did not responded regrading the Interview result even after multiple follow up.

Informal process involving two meetings and a call, limited background information was needed and talked mainly about clients and some of the firms background as well as the culture of the firm