﻿ F.A.Qs Home Discuss ProblemSet Status Ranklist Contest 入门OJ LoginRegister
Problem 3212. -- Pku3468 A Simple Problem with Integers

## 3212: Pku3468 A Simple Problem with Integers

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 2996  Solved: 1273
[Submit][Status][Discuss]

## Description

You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation is to add some given number to each number in a given interval. The other is to ask for the sum of numbers in a given interval.

## Input

The first line contains two numbers N and Q. 1 ≤ N,Q ≤ 100000.
The second line contains N numbers, the initial values of A1, A2, ... , AN. -1000000000 ≤ Ai ≤ 1000000000.
Each of the next Q lines represents an operation.
"C a b c" means adding c to each of Aa, Aa+1, ... , Ab. -10000 ≤ c ≤ 10000.
"Q a b" means querying the sum of Aa, Aa+1, ... , Ab.

## Output

You need to answer all Q commands in order. One answer in a line.

## Sample Input

10 5
1 2 3 4 5 6 7 8 9 10
Q 4 4
Q 1 10
Q 2 4
C 3 6 3
Q 2 4

4
55
9
15

## HINT

The sums may exceed the range of 32-bit integers.

## Source

[Submit][Status][Discuss]
﻿
HOME Back