KGSS - Maximum Sum
This will be indicated in the input by a 'U' followed by space and then two integers i and x.
U i x, 1 ≤ i ≤ N, and x, 0 ≤ x ≤ 10^8.
This operation sets the value of A[i] to x.Query:
This will be indicated in the input by a 'Q' followed by a single space and then two integers i and j.
Q x y, 1 ≤ x < y ≤ N.
You must find i and j such that x ≤ i, j ≤ y and i != j, such that the sum A[i]+A[j] is maximized. Print the sum A[i]+A[j].
The first line of input consists of an integer N representing the length of the sequence. Next line consists of N space separated integers A[i]. Next line contains an integer Q, Q ≤ 10^5, representing the number of operations. Next Q lines contain the operations.
Output the maximum sum mentioned above, in a separate line, for each Query.
Input: 5 1 2 3 4 5 6 Q 2 4 Q 2 5 U 1 6 Q 1 5 U 1 7 Q 1 5 Output: 7 9 11 12
@ab_biswas09 even easiest of the easiest seg tree problems are not easy , are you red on codeforces
AC in 1 go! segment tree <3
AC IN ONE GO >> Cakewalk
AC in one go
segment tree done the job...AC in 1 go :)
by using a structure array for the max and second max is not working in java...tle
My 100th :) Modified Range maximum Query
Dont know why structured array is giving tle . Segment tree work's fine worth solving the problem. Must do it
nice problem.. learnt a lot.. AC in 1st go.. :) must try problem for beginner