Let's say, I have number A and they call several people B A B 123 987 123 987 123 124 435 567 435 789 653 876 653 876 999 654 999 654 999 654 999 123 I want to find to whom the person in A has called maximum times and also the number of times. OUTPUT: A B Count 123 987 2 435 567 or 789 1 653 876 2 999 654 3 How one can think of it is, A B 123 987 2 124 1 435 567 1 789 1 653 876 2 999 654 3 123 1 Can somebody help me out on how to do this? Continue reading...
