23 Mar PMCA Sunday 10:00 Practice -03.21
Use Stack to solve the following question:
You are given an array A of Q integers and Q queries. In each query, you are given an integer i (1≤i≤N).
Your task is to find the minimum index greater than i (1≤i≤N) such that:
Sum of digits of Ai is greater than the sum of digits of Aj
Ai < Aj
If there is no answer, then print -1.
The first line contains two numbers N and Q.
The next line contains N numbers.
Next Q lines contain Q queries.
Print the answer as described in the problem
Sample Input 5 5 62 70 28 62 92 1 5 3 4 2 Sample Output 2 -1 4 -1 -1 Explanation In the first quary 70 grater than 62 and sum of digits of 62 = 8 grater than sum f digits of 70=7 (8>7)