Flipkart interview questions

The interview process consist 1 coding round and 3 pe interviews. Out of 200 students 20 were selected for the interviews . Interviews started next day and it's run entire day . The interview process was boring . After waiting 2+ hour. Then interviewer asked me about my internships like some basic questions . Then after he asked me three questions on data structure and algorithm . First question was running length medium . I solved it easily then he asked me about heap sort and want me to write proper code and explanation . I explained briefly then he asked me second question that was about next greater permutation number of given integer .i was stuck intially then he guided me to reach the solution then he asked me last question which was about binary tree .i don't actually remember the exact question . After waiting for 30 minutes . Second interview was about prooer ds algo they asked me 2 Questions which i was not able to solve . After the interview i was not selected on that process.

Had five rounds. Coding, code review, DS algo, Android round, Design round. Coding question was to implement an Android application. Question had sub parts as well. Question was very standard to judge your coding skill.