Submit | All submissions | Best solutions | Back to list |
SIGNGAME - Red Balls |
After the previous game ,each ball is either red or green in color. Dope tells you that he is changing the color of all balls in the range i to j (both inclusive),that is red balls to green and green balls to red. And then he asks you to tell the total extra mass of red balls over green balls for some range between i to j (inclusively). As you like red balls, you will try to maximize the total mass of red balls mass over the green balls. So He allows you to choose any range inside the range i, j inclusively which gives the maximum extra mass of red balls over the green balls. When you choose a range, you have to take all the green and red balls that belong to the range.
Convention:
(+) positive mass represents red ball mass
(-) negative mass represents green ball mass
Input
T number of test cases
next T test cases follow each contains:
N number of balls
next line contains N mass of ball (positive or negative)
next line Q number of operation and query next Q lines contain
c a b
c = 0 change the color of balls in range a, b inclusively
c = 1 print the maximum extra mass of red balls over green in the range a, b inclusively.
Output
each line for print query
limit:
1 <= T < 10
1 <= N < 100000
1 <= Q < 100000
0 <= a <= b < N
c = 0 or 1
abs(individual mass)<1000
Example
Input:
1
5
2 -3 4 5 -2
4
0 0 2
1 0 2
1 1 3
0 1 1
Output:
3
5
[you have to choose a range, if all balls are green in the range you have to print (-)ve answer]
Added by: | pankaj |
Date: | 2011-02-13 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All |
Resource: | own, DOPE 2011 |
hide comments
2011-02-21 17:54:54 Siarhei Kulik
What are the restrictions for the mass of balls? you have to choose a range however you don't find any red balls. Last edit: 2022-12-11 23:07:47 |