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
AC in ONE GO..!!! Nice implementation category question
AC in one go :)
@bhagirathi08 no we don't need lazy, it is only needed in update range sort of questions...
Last edit: 2017-08-02 19:09:33
Do we need LAZY propagation?
AC in one GO! :D Probably the very first time :P
why not working if the size of tree set to be 2 * n + 10(as minimum no of elements needed are 2 * n - 1 for the tree)
AC in one go. Recommended!
my first segment tree .. AC in one go :)
RE(SIGSEGV) - Scanf