RANGESUM - Range Sum


You are initially given an array of N integers ( 1<=N<=105 ). Given this array, you have to perform 2 kinds of operations :

(i) Operation 1 : Op1( l, r )

You are given 2 integers l and r. ( 1 <= l <= r <= current size of the array ). You need to return the sum of all the elements with indices between l and r ( both inclusive ). That is, if the elements currently in the array are a1, a2, a3.... an, you need to return the following sum : al + al+1 + al+2 ... + ar.

(ii) Operation 2 : Op2( x )

You are given a single integer x ( |x| <= 109 ). Add this element to the beginning of the array. After this operation, x will now become a1, the old a1 will now become a2, and so on. The size of the array will increase by 1.

Input

The first line contains a single integer N ( 1 <= N <= 105 ), the number of elements initially in the array.

This is followed by a line containing N space separated integers, a1 a2 .... aN. ( |ai| <= 109 )

The next line contains a single integer Q, the number of operations you will be asked to perform. ( 1 <= Q <= 105 )

Q lines of input follow. Each such line starts with either the number 1 or the number 2. This indicates the type of operation that you are required to perform. The format of these queries are as follows :

1 l r : Carry out operation 1 with arguments l and r. ( 1 <= l <= r <= current size of the array )
That is, return the sum of the following array elements : al + al+1 ... + ar

2 x : Carry out operation 2 with the argument x. ( |x| <= 109 )
That is, add the value x at the beginning of the array.

Output

For each query of type 1, output the return value on a new line. No output needs to be printed for queries of type 2.

Example

Input #1:
10
1 2 3 4 5 6 7 8 9 10
4
1 1 10
1 1 1
1 10 10
1 2 7

Output #1:
55
1
10
27
Input #2:
5
6 7 8 9 10
9
2 5
2 4
1 2 7
2 3
2 2
2 1
1 1 10
1 1 1
1 10 10

Output #2:

45
55
1
10

hide comments
maniAC: 2014-08-19 11:02:56

Use long long !.

nikhil_nihal: 2014-07-20 00:42:28

getting WA in 5th running...
any help pls..

RIVU DAS: 2014-03-17 04:59:47

Learnt a lot!!

ping_of_death: 2014-02-20 22:00:44

Nice problem ....a lot to learn in arrey implementation ...

Shaka Shadows: 2013-07-31 20:17:31

There is a more general version of this problem on SPOJ. See http://www.spoj.com/problems/GSS6.

Last edit: 2013-07-31 20:52:15
BLANKRK: 2013-07-09 08:09:16

AC..gud one... :D

vishal chaudhary: 2013-06-27 15:52:38

AC.:)

shiv prasad chabarval: 2013-06-22 10:15:59

@Gowri Sundarami: please check my code and tell me where it fails id:9528540

napster: 2013-06-22 06:21:35

@Gowri Sundarami: don't know why i'm getting WA.......please help me.My submission id is 9478119

shiva_hellgeek: 2013-06-15 10:25:24

finally got this one, so many conditions...
:D


Added by:Gowri Sundaram
Date:2013-04-11
Time limit:2s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64